ClinicalTrials.gg
CompletedNCT03985839Updated Jul 13, 2026Results posted

Safety and Performance of MICRORAPTOR™ Suture Anchors in Shoulder and Hip

An observational study in Labral Tear, Glenoid, Acetabular Labrum Tear and Bankart Lesions, sponsored by Smith & Nephew, Inc.. Completed at 12 sites in United States. Open to participants aged 12 Years and older. Per ClinicalTrials.gov, last updated 2026-07-13.

Sponsored by Smith & Nephew, Inc. · Observational

Study type
Observational
Model
Other
Time perspective
Prospective
Enrollment
298
Ages
12 Years and older
Sex
All
01

Study summary

This is a prospective, multi-center, PMCF study to evaluate the safety and performance of the MICRORAPTOR REGENESORB suture anchors, MICRORAPTOR Knotless REGENESORB suture anchors, and MICRORAPTOR Knotless PEEK suture anchors implanted in 315 subjects needing reattachment of soft tissue to bone.

Read the detailed description

The purpose of this trial is to assess, by product, safety and performance post-market of the Microraptor Regenesorb, Microraptor Knotless Regenesorb, and Microraptor Knotless PEEK Suture Anchors.

Approximately 18 sites (approximately 3 sites for study shoulder group and 3 sites for study hip group, per product) in the United States will participate in the study. This is an open-label study with consecutive enrollment. The study will continue for 24 months from the date that the last subject received the study treatment to the date that the last subject completes the study as planned. The study duration is planned for 36 months.

02

Conditions studied

  • Labral Tear, Glenoid
  • Acetabular Labrum Tear
  • Bankart Lesions
  • Anterior Shoulder Instability
  • SLAP Lesion
  • Rotator Cuff Tears

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Keywords

  • Microraptor, suture anchor, knotless, Smith and Nephew
03

In context

Rotator Cuff Injuries

631 studies on the registry are indexed under Rotator Cuff Injuries; 156 are open to participants now.

This study's enrollment of 298 is above the median of 70 across 145 observational studies indexed under Rotator Cuff Injuries.

Browse Rotator Cuff Injuries studies →

Lead sponsor

Smith & Nephew, Inc. is the lead sponsor of 134 studies on the registry; 11 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 10 (91%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Subject requires reattachment of soft tissue to bone for the following indications:

  • Shoulder - Capsular stabilization for Bankart repair, Anterior shoulder instability, SLAP lesion repairs, Capsular shift or capsulolabral reconstructions, Biceps tenodesis, Rotator Cuff Repairs (knotless anchors only)
  • Hip - Acetabular labrum repair/reconstruction

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Subject requires reattachment of soft tissue to bone for one of the following indications:

    • Shoulder - Capsular stabilization for Bankart repair, anterior shoulder instability, superior labrum from anterior to posterior (SLAP) lesion repairs, capsular shift or capsulolabral reconstructions; biceps tenodesis (knotless anchors only)
    • Hip - Acetabular labrum repair/reconstruction
  2. Subject if ≥ 18 years of age or legally authorized representative if subject is \<18 years of age has consented to participate in the study by signing the IRB approved form. If \<18 years of age, subject has assented to participate in the study by signing the IRB approved assent form.
  3. Subject is ≥12 years of age at time of surgery.
  4. Willing and able to make all required study visits.
  5. Able to follow instructions.

Exclusion criteria

Exclusion Criteria:

  1. Known to the implant material. Where material sensitivity is suspected, appropriate tests should be made and sensitivity ruled out prior to implantation.
  2. Pathological conditions of bone, such as cystic changes or severe osteopenia, which would compromise secure anchor fixation.
  3. Pathological conditions in the soft tissues to be attached that would impair secure fixation by suture.
  4. Comminuted bone surface, which would compromise secure anchor fixation.
  5. Physical conditions which would eliminate, or tend to eliminate, adequate anchor support or retard healing.
  6. The presence of infection.
  7. Conditions which would limit the subject's ability or willingness to restrict activities or follow directions during the healing period.
  8. Currently using tobacco products (cigarette, smokeless tobacco, e-cigarettes, vaping etc.).
  9. Concurrent bilateral surgery.
  10. Prior MICRORAPTOR™ REGENESORB™, MICRORAPTOR™ Knotless REGENESORB™ or MICRORAPTOR™ Knotless PEEK implantation.
  11. Participation in the treatment period of another clinical trial within thirty (30) days of Visit 1, or during the study.
  12. Women who are pregnant or nursing.
  13. History of poor compliance with medical treatment.
  14. Prior ipsilateral surgeries performed on the joint space.
  15. Subjects with a medical or physical condition that, in the opinion of the Investigator, would preclude safe subject participation in the study.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Observational model
Other
Time perspective
Prospective
Enrollment
298 participants (actual)
Patient registry
No

Groups and cohorts

  • MICRORAPTOR™ REGENESORB™ Suture Anchor

    MICRORAPTOR™ REGENESORB™ Suture Anchor

    Device: MICRORAPTOR™ REGENESORB™ Suture Anchor

  • MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor

    MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor

    Device: MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor

  • MICRORAPTOR™ Knotless PEEK Suture Anchor

    MICRORAPTOR™ Knotless PEEK Suture Anchor

    Device: MICRORAPTOR™ Knotless PEEK Suture Anchor

Interventions

  • DeviceMICRORAPTOR™ REGENESORB™ Suture Anchor

    Smith \& Nephew MICRORAPTOR™ REGENESORB™ Suture Anchor is a fixation device intended to provide secure attachment of soft tissue to bone.

  • DeviceMICRORAPTOR™ Knotless REGENESORB™ Suture Anchor

    MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor is fixation device, which consists of an anchor on an inserter, and a suture threader. The anchor consists of the following components: a proximal anchor body (REGENESORB™), and a non-absorbable PEEK (Polyether ether ketone) distal anchor tip.

  • DeviceMICRORAPTOR™ Knotless PEEK Suture Anchor

    The MICRORAPTOR™ Knotless PEEK Suture Anchor is a class IIb device, which consists of an anchor on an inserter, and a suture threader. The anchor consists of the following components: a proximal anchor body (PEEK), and a non-absorbable PEEK distal anchor tip.

06

What researchers measure

Primary outcomes

  1. Repair Failure Rate at 6 Months

    Repair failure at 6 months was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 6-month follow-up.

    Time frame: 6 months

Secondary outcomes

  1. Repair Failure Rate at 12 Months

    Repair failure at 12 months was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 12-month follow-up.

    Time frame: 12 months

  2. Visual Analogue Scale (VAS) Pain Change From Baseline

    Pain was assessed using a Visual Analogue Scale (VAS) where participants indicated their pain level by marking a point that represented their perceived pain intensity. Scores ranged from 0 to 100, with 0 representing no pain and 100 representing the worst imaginable pain (i.e., a worse outcome). A decrease in VAS Pain score indicated a reduction in pain (i.e., a better outcome) and an increase indicated worsening in pain (i.e., a worse outcome). The mean change in pain score was recorded on the VAS from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

  3. Repair Failure Rate at 24 Months (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY)

    Repair failure at 24 months was collected only for participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor. Repair failure was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 24-month follow-up.

    Time frame: 24 months

  4. Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Acetabular Labral Condition

    Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on acetabular labral condition classification. The number of participants acetabular labral condition was classified as one of the following: * Normal Intact Labrum * Labral Tear / Degeneration

    Time frame: Baseline, 6 months, and 24 months

  5. Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Joint Effusion

    Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on joint effusion classification. The number of participants joint effusion was classified as one of the following: * None * Mild * Moderate * Severe

    Time frame: Baseline, 6 months, and 24 months

  6. Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Bone Marrow Edema

    Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on the presence of bone marrow edema. The number of participants with bone marrow edema were categorized as 'Absent' or 'Present'.

    Time frame: Baseline, 6 months, and 24 months

  7. Rowe Shoulder Score Change From Baseline (Shoulder Participants ONLY)

    The Rowe shoulder score for shoulder instability evaluated using a 3-item instrument completed by the investigator or qualified, delegated study staff. Its questions addressed the categories of shoulder stability (0 to 50 points), motion (0 to 20 points), and function (0 to 30 points). Scores ranged from 0 to 100 with a score of 90-100 points indicating an excellent evaluation, 75-89 points indicating a good evaluation, 51-74 points indicating a fair evaluation, and =\< 50 points indicating a poor evaluation. An increase in Rowe score indicated reduced shoulder instability (i.e., a better outcome) and a decrease indicated worsening instability (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

  8. Western Ontario Shoulder Instability Index (WOSI) Score Change From Baseline (Shoulder Participants ONLY)

    Western Ontario Shoulder Instability Index (WOSI) was a participant completed instrument. Its categories included "physical symptoms", "sports, recreation, work", "pain", "lifestyle", and "emotion", with questions within each category scored from 0 to 100 using a visual analog scale. Scores were combined to produce an overall score that ranged from 0 to 2100 with a score of 0 indicating better shoulder function and 2100 indicating worse shoulder function. A decrease in WOSI score indicated improving shoulder function (i.e., a better outcome) and an increase indicated worsening shoulder function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

  9. Constant-Murley Shoulder Scale Change From Baseline (Should Participants ONLY)

    Constant-Murley Shoulder (CMS) scale assesses four aspects related to shoulder pathology: pain, activities of daily living (ADL), range of motion (ROM), and strength. The total score ranged from 0 to 100, with a higher score indicating better shoulder function. An increase in CMS score indicated improving shoulder function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

  10. Hip Outcome Score Activities of Daily Living (HOS-ADL) Score Change in Baseline (Hip Participants ONLY)

    The Hip Outcome Score Activities of Daily Living (HOS-ADL) subscale consisted of 17 items that addressed specific activities related to hip function. Scores ranged from 0 to 100 with 0 representing the least function and 100 representing the most function. An increase in HOS-ADL score indicated improved hip function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

  11. Modified Harris Hip Score (mHHS) Change From Baseline (Hip Participants ONLY)

    Modified Harris Hip Score (mHHS) is a joint specific score covering domains of pain, function, functional activities, absence of deformity, and hip range of motion. Scores ranged from 0 to 100, with 0 representing worse disability and 100 representing less disability. An increase in mHHS indicated improved hip joint function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

    Time frame: Baseline to 6 months, 12 months, and 24 months

07

Results

Posted Jul 13, 2026

Participant flow

Participant flow — Overall Study
MilestoneMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Started11412261
Completed797543
Not completed354718
Withdrew: Adverse event210
Withdrew: Lost to follow-up283514
Withdrew: Physician decision121
Withdrew: Withdrawal by subject282
Withdrew: Non-compliance with follow-up visits100
Withdrew: Subject relocated001
Withdrew: Device deficiency100
Withdrew: Follow-up visit missed and could not be rescheduled010

Outcome measures

PrimaryRepair Failure Rate at 6 Months

Repair failure at 6 months was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 6-month follow-up.

Time frame:
6 months
Reported as:
Number · proportion of participants
Repair Failure Rate at 6 Months
proportion of participantsMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Repair Failure Rate at 6 Months0 (95.7 to 100)0.930
SecondaryRepair Failure Rate at 12 Months

Repair failure at 12 months was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 12-month follow-up.

Time frame:
12 months
Reported as:
Number · proportion of participants
Repair Failure Rate at 12 Months
proportion of participantsMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Repair Failure Rate at 12 Months000
SecondaryVisual Analogue Scale (VAS) Pain Change From Baseline

Pain was assessed using a Visual Analogue Scale (VAS) where participants indicated their pain level by marking a point that represented their perceived pain intensity. Scores ranged from 0 to 100, with 0 representing no pain and 100 representing the worst imaginable pain (i.e., a worse outcome). A decrease in VAS Pain score indicated a reduction in pain (i.e., a better outcome) and an increase indicated worsening in pain (i.e., a worse outcome). The mean change in pain score was recorded on the VAS from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Visual Analogue Scale (VAS) Pain Change From Baseline
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months-35.02 ± 30.02-31.17 ± 27.39-30.61 ± 24.75
Baseline to 12 months-36.22 ± 28.10-33.91 ± 29.68-28.14 ± 27.81
Baseline to 24 months—-35.54 ± 29.28—
SecondaryRepair Failure Rate at 24 Months (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY)

Repair failure at 24 months was collected only for participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor. Repair failure was determined by physician diagnosis of recurrent shoulder dislocation, subluxation, and patient symptoms (e.g., pain). In the event of suspected repair failure, MRI or CT scan must confirm the root cause (i.e., intraarticular labrum failure or fixation repair failure) and assess glenoid bone loss. The repair failure rate was defined as the number of participants with confirmed repair failure divided by the total number of participants in the study device group at the 24-month follow-up.

Time frame:
24 months
Reported as:
Number · proportion of participants
Repair Failure Rate at 24 Months (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY)
proportion of participantsMICRORAPTOR™ Knotless REGENESORB™ Suture Anchor
Repair Failure Rate at 24 Months (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY)0
SecondaryAnchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Acetabular Labral Condition

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on acetabular labral condition classification. The number of participants acetabular labral condition was classified as one of the following: * Normal Intact Labrum * Labral Tear / Degeneration

Time frame:
Baseline, 6 months, and 24 months
Reported as:
Count of participants · Participants
Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Acetabular Labral Condition
ParticipantsMICRORAPTOR™ Knotless REGENESORB™ Suture Anchor
Baseline — Normal Intact Labrum5
Baseline — Labral Tear / Degeneration32
6 months — Normal Intact Labrum3
6 months — Labral Tear / Degeneration42
24 months — Normal Intact Labrum13
24 months — Labral Tear / Degeneration16
SecondaryAnchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Joint Effusion

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on joint effusion classification. The number of participants joint effusion was classified as one of the following: * None * Mild * Moderate * Severe

Time frame:
Baseline, 6 months, and 24 months
Reported as:
Count of participants · Participants
Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Joint Effusion
ParticipantsMICRORAPTOR™ Knotless REGENESORB™ Suture Anchor
Baseline — None9
Baseline — Mild0
Baseline — Moderate1
Baseline — Severe0
6 months — None5
6 months — Mild5
6 months — Moderate0
6 months — Severe0
24 months — None3
24 months — Mild3
24 months — Moderate0
24 months — Severe0
SecondaryAnchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Bone Marrow Edema

Hip Magnetic Resonance Imagining (MRI) was performed on participants that received the MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor to determine anchor absorption/replacement by bone at baseline, 6 months, and 24 months based on the presence of bone marrow edema. The number of participants with bone marrow edema were categorized as 'Absent' or 'Present'.

Time frame:
Baseline, 6 months, and 24 months
Reported as:
Count of participants · Participants
Anchor Absorption/Replacement by Bone (MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor ONLY): Bone Marrow Edema
ParticipantsMICRORAPTOR™ Knotless REGENESORB™ Suture Anchor
Baseline — Absent9
Baseline — Present1
6 months — Absent5
6 months — Present5
24 months — Absent4
24 months — Present1
SecondaryRowe Shoulder Score Change From Baseline (Shoulder Participants ONLY)

The Rowe shoulder score for shoulder instability evaluated using a 3-item instrument completed by the investigator or qualified, delegated study staff. Its questions addressed the categories of shoulder stability (0 to 50 points), motion (0 to 20 points), and function (0 to 30 points). Scores ranged from 0 to 100 with a score of 90-100 points indicating an excellent evaluation, 75-89 points indicating a good evaluation, 51-74 points indicating a fair evaluation, and =\< 50 points indicating a poor evaluation. An increase in Rowe score indicated reduced shoulder instability (i.e., a better outcome) and a decrease indicated worsening instability (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Rowe Shoulder Score Change From Baseline (Shoulder Participants ONLY)
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months30.43 ± 21.4040.0 ± 21.1737.5 ± 20.82
Baseline to 12 months34.43 ± 22.0643.05 ± 21.0644.74 ± 28.26
Baseline to 24 months—48.64 ± 18.93—
SecondaryWestern Ontario Shoulder Instability Index (WOSI) Score Change From Baseline (Shoulder Participants ONLY)

Western Ontario Shoulder Instability Index (WOSI) was a participant completed instrument. Its categories included "physical symptoms", "sports, recreation, work", "pain", "lifestyle", and "emotion", with questions within each category scored from 0 to 100 using a visual analog scale. Scores were combined to produce an overall score that ranged from 0 to 2100 with a score of 0 indicating better shoulder function and 2100 indicating worse shoulder function. A decrease in WOSI score indicated improving shoulder function (i.e., a better outcome) and an increase indicated worsening shoulder function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Western Ontario Shoulder Instability Index (WOSI) Score Change From Baseline (Shoulder Participants ONLY)
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months-925.68 ± 500.71-792.94 ± 505.37-719.44 ± 393.45
Baseline to 12 months-988.43 ± 453.91-989.85 ± 483.85-927.06 ± 511.32
Baseline to 24 months—-1110.03 ± 447.06—
SecondaryConstant-Murley Shoulder Scale Change From Baseline (Should Participants ONLY)

Constant-Murley Shoulder (CMS) scale assesses four aspects related to shoulder pathology: pain, activities of daily living (ADL), range of motion (ROM), and strength. The total score ranged from 0 to 100, with a higher score indicating better shoulder function. An increase in CMS score indicated improving shoulder function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Constant-Murley Shoulder Scale Change From Baseline (Should Participants ONLY)
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months26.11 ± 19.0723.60 ± 24.7817.14 ± 25.98
Baseline to 12 months32.31 ± 12.9129.78 ± 20.4730.18 ± 25.85
Baseline to 24 months—38.53 ± 22.26—
SecondaryHip Outcome Score Activities of Daily Living (HOS-ADL) Score Change in Baseline (Hip Participants ONLY)

The Hip Outcome Score Activities of Daily Living (HOS-ADL) subscale consisted of 17 items that addressed specific activities related to hip function. Scores ranged from 0 to 100 with 0 representing the least function and 100 representing the most function. An increase in HOS-ADL score indicated improved hip function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Hip Outcome Score Activities of Daily Living (HOS-ADL) Score Change in Baseline (Hip Participants ONLY)
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months20.03 ± 16.2926.20 ± 16.9321.11 ± 14.44
Baseline to 12 months22.19 ± 16.8825.91 ± 18.5023.00 ± 13.20
Baseline to 24 months—25.95 ± 16.71—
SecondaryModified Harris Hip Score (mHHS) Change From Baseline (Hip Participants ONLY)

Modified Harris Hip Score (mHHS) is a joint specific score covering domains of pain, function, functional activities, absence of deformity, and hip range of motion. Scores ranged from 0 to 100, with 0 representing worse disability and 100 representing less disability. An increase in mHHS indicated improved hip joint function (i.e., a better outcome) and a decrease indicated worsening function (i.e., a worse outcome). The mean change in score was recorded from baseline to each scheduled post-operative visit at 6 months, 12 months, and 24 months as specified depending on the treatment group.

Time frame:
Baseline to 6 months, 12 months, and 24 months
Reported as:
Mean · score on a scale
Modified Harris Hip Score (mHHS) Change From Baseline (Hip Participants ONLY)
score on a scaleMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
Baseline to 6 months17.28 ± 17.2325.88 ± 19.5621.54 ± 15.76
Baseline to 12 months23.60 ± 17.5024.56 ± 17.4017.79 ± 14.35
Baseline to 24 months—25.05 ± 19.01—

Adverse events

Collected over Adverse events were collected during surgery to study completion, approximately 12 months. The MICRORAPTOR™ Knotless PEEK Suture Anchor group collected adverse events for an additional 12 months (i.e., adverse events were collected during surgery to approximately 24 months).. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
MICRORAPTOR™ REGENESORB™ Suture Anchor0/114 (0%)6/114 (5.3%)37/114 (32.5%)
MICRORAPTOR™ Knotless REGENESORB™ Suture Anchor0/122 (0%)7/122 (5.7%)35/122 (28.7%)
MICRORAPTOR™ Knotless PEEK Suture Anchor0/61 (0%)2/61 (3.3%)13/61 (21.3%)
Most frequent serious events
Showing 10 of 12
Most frequent serious events
EventMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
UNSPECIFIED GASTROINTESTINAL PROBLEMGastrointestinal disorders0/1140/1221/61
CELLULITISSkin and subcutaneous tissue disorders0/1142/1220/61
PAINGeneral disorders1/1141/1221/61
MUSCLE/TENDON DAMAGEMusculoskeletal and connective tissue disorders1/1140/1220/61
OSSIFICATIONMusculoskeletal and connective tissue disorders1/1140/1220/61
UNSPECIFIED MUSCULOSKELETAL PROBLEMMusculoskeletal and connective tissue disorders1/1140/1220/61
IMPLANT PAINInjury, poisoning and procedural complications1/1140/1220/61
INADEQUATE PAIN RELIEFInjury, poisoning and procedural complications1/1140/1220/61
ISCHEMIC HEART DISEASECardiac disorders0/1141/1220/61
ARTHRITISMusculoskeletal and connective tissue disorders0/1141/1220/61
Most frequent other events
Showing 10 of 37
Most frequent other events
EventMICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture Anchor
PAINGeneral disorders11/11410/1222/61
UNSPECIFIED MUSCULOSKELETAL PROBLEMMusculoskeletal and connective tissue disorders5/1141/1221/61
BONE FRACTURE(S)Musculoskeletal and connective tissue disorders0/1141/1222/61
NAUSEAGastrointestinal disorders3/1140/1220/61
INFLAMMATIONGeneral disorders3/1142/1220/61
LOSS OF RANGE OF MOTIONMusculoskeletal and connective tissue disorders0/1143/1220/61
NUMBNESSNervous system disorders2/1140/1220/61
ARTHRALGIAMusculoskeletal and connective tissue disorders2/1140/1221/61
CRAMP(S) /MUSCLE SPASM(S)Musculoskeletal and connective tissue disorders2/1140/1220/61
HEADACHEGeneral disorders1/1140/1221/61

Baseline characteristics

Age, Continuous
Age, Continuous(years)MICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture AnchorTotal
Mean40.80 ± 13.6441.88 ± 14.9440.16 ± 15.1741.12 ± 14.44
Sex: Female, Male
Sex: Female, Male(Participants)MICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture AnchorTotal
Female686532165
Male465729132
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)MICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture AnchorTotal
Hispanic or Latino65617
Not Hispanic or Latino9911555269
Unknown or Not Reported92011
Region of Enrollment
Region of Enrollment(Participants)MICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture AnchorTotal
United States11412261297
Body Mass Index (BMI)
Body Mass Index (BMI)(kg/m^2)MICRORAPTOR™ REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless REGENESORB™ Suture AnchorMICRORAPTOR™ Knotless PEEK Suture AnchorTotal
Mean26.44 ± 4.8528.63 ± 5.6727.32 ± 5.0527.52 ± 5.31
08

Study locations

12 sites
  • University of Colorado
    Aurora, Colorado 80045, United States
  • Colorado Springs Orthopaedic Group
    Colorado Springs, Colorado 80920, United States
  • Holy Cross Orthopedic Institute
    Oakland Park, Florida 33334, United States
  • Emory University - Brookhaven
    Brookhaven, Georgia 30329, United States
  • Luminis Health Research Institute
    Annapolis, Maryland 21401, United States
  • Ohio State University Wexner Medical Center
    Columbus, Ohio 43202, United States
  • Oklahoma Sports and Science Orthopedics / The Physician's Group
    Oklahoma City, Oklahoma 73114, United States
  • Palmetto/Prisma Health - University of South Carolina Orthopaedics
    Columbia, South Carolina 29203, United States
  • Steadman Hawkins Clinic of the Carolinas
    Greenville, South Carolina 29615, United States
  • Atlantic Orthopaedic Specialists
    Virginia Beach, Virginia 23452, United States
  • Center for Advanced Orthopaedics / Nova Orthopedic & Spine Care
    Woodbridge, Virginia 22191, United States
  • Memorial Medical Center
    Ashland, Wisconsin 54806, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03985839
Responsible party
Sponsor
First posted
Jun 14, 2019
Start date
Aug 1, 2019
Primary completion
Aug 8, 2024
Completion
Aug 8, 2024
Results posted
Jul 13, 2026
Last update
Jul 13, 2026

Study contacts

Mary Ozokwere
study chair · Smith & Nephew, Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

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