CClinicalTrials.gg
Status unknownNCT04093804Updated Sep 18, 2019

Impact of Glenosphere Size on Range of Motion in Female Patients Undergoing Reverse Shoulder Arthroplasty

An interventional study of Glenosphere size for Reverse Shoulder Arthroplasty in Rotator Cuff Tear Arthropathy and Massive Irreparable Rotator Cuff Tear, sponsored by Fondren Orthopedic Group L.L.P.. Status unknown at 1 site in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-09-18.

Sponsored by Fondren Orthopedic Group L.L.P. · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Sep 2019), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
120
Allocation
Randomized
Ages
18 Years and older
Sex
Female
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Study summary

The purpose of this study is to perform a prospective randomized trial among female patients undergoing reverse shoulder arthroplasty (RSA) to determine if a larger glenosphere allows greater range of motion without an impact on complications.

Read the detailed description

A current research debate is whether glenosphere size has a significant clinical impact on a patient's range of motion (ROM) following RSA. Some researchers have shown an association between increased glenosphere size and improved ROM, but no study has determined the absolute minimal motion differences that would be recognizable or beneficial by patients. This is mostly attributable to limitations such as small sample sizes as well as the fact that shoulder dynamics are multifactorial in nature. Most studies have shown an increased ROM with larger glenosphere sizes.1 Because smaller patients are often times female and receive smaller implants, female patients may be more susceptible to limited ROM. The purpose of this study is to determine if a larger glenosphere allows for greater ROM in female patients undergoing RSA.

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Conditions studied

  • Rotator Cuff Tear Arthropathy
  • Massive Irreparable Rotator Cuff Tear
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In context

Rotator Cuff Tear Arthropathy

52 studies on the registry are indexed under Rotator Cuff Tear Arthropathy; 15 are open to participants now.

This study's planned enrollment of 120 is above the median of 93 across 29 interventional studies indexed under Rotator Cuff Tear Arthropathy.

Browse Rotator Cuff Tear Arthropathy studies →

Lead sponsor

Fondren Orthopedic Group L.L.P. is the lead sponsor of 4 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Inclusion criteria

  • Female sex
  • Diagnosis of rotator cuff tear arthropathy or a massive irreparable rotator cuff tear for which the patient has elected to undergo reverse shoulder arthroplasty
  • No history of prior shoulder arthroplasty
  • Consent to study participation by signing the informed consent and the Protected Health Information (PHI) form (Attachment B and C)
  • Ability to speak, read and write English

Exclusion criteria

Exclusion Criteria:

  • Male sex
  • Any impairment that would prevent answering the surveys
  • No children or adolescents under the age of 18 years old
  • No prisoners, pregnant women, or mentally disabled persons
  • No Workers' Compensation cases
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
120 participants (estimated)

Study arms

  • Active comparator
    32mm Glenosphere

    The control group will receive the standard 32mm glenosphere.

    Device: Glenosphere size for Reverse Shoulder Arthroplasty

  • Experimental
    36mm Glenosphere

    The experimental group will receive a 36mm glenosphere.

    Device: Glenosphere size for Reverse Shoulder Arthroplasty

Interventions

  • DeviceGlenosphere size for Reverse Shoulder Arthroplasty

    Two randomized study groups will be formed with the consented patients (experimental and control). All patients will undergo reverse shoulder arthroplasty by the Principal Investigator. The experimental group patients will receive a 36mm glenosphere and the control group will receive a 32mm glenosphere. All other procedures during the surgery are identical between groups.

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What researchers measure

Primary outcomes

  1. Active range of motion

    Shoulder elevation, abduction, external rotation in abduction, and internal rotation

    Time frame: Change from baseline (pre-operative) to 2 years follow-up

  2. Passive range of motion

    Shoulder elevation and external rotation

    Time frame: Change from baseline (pre-operative) to 2 years follow-up

Secondary outcomes

  1. American Shoulder and Elbow Surgeon (ASES) Shoulder Index

    Standard functional outcomes questionnaire following shoulder surgery, range 0 - 100 (highest function)

    Time frame: Change from baseline (pre-operative) to 2 years follow-up

  2. Constant-Murley Shoulder Outcome score

    Standard functional outcomes questionnaire following shoulder surgery, range 0 - 100 (highest function)

    Time frame: Change from baseline (pre-operative) to 2 years follow-up

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Study locations

1 site
  • Fondren Orthopedic Group, L.L.P.
    Houston, Texas 77030, United States
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References and documents

Publications

  • Mollon B, Mahure SA, Roche CP, Zuckerman JD. Impact of glenosphere size on clinical outcomes after reverse total shoulder arthroplasty: an analysis of 297 shoulders. J Shoulder Elbow Surg. 2016 May;25(5):763-71. doi: 10.1016/j.jse.2015.10.027. Epub 2016 Feb 4. PubMed 26853756 ↗

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 18, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04093804
Lead sponsor
Fondren Orthopedic Group L.L.P.
Responsible party
Sponsor
First posted
Sep 18, 2019
Start date
Oct 1, 2019 (estimated)
Primary completion
Oct 1, 2022 (estimated)
Completion
Sep 1, 2024 (estimated)
Last update
Sep 18, 2019

Study contacts

Mitzi S Laughlin, PhD
Contact
Mitzi.Laughlin@fondren.com
713-794-3408

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Sep 2019. You cannot join it, but the record below documents what was studied.

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