An interventional study of Lapiplasty in Hallux Valgus and Bunion, sponsored by Treace Medical Concepts, Inc.. Active, not recruiting at 7 sites in United States. Open to participants aged 14 Years to 58 Years. Per ClinicalTrials.gov, last updated 2026-04-06.
Sponsored by Treace Medical Concepts, Inc. · Not applicable, Interventional, and Treatment
The objectives of this study are to evaluate the following outcomes of the Lapiplasty® Procedure for patients in need of hallux valgus surgery:
Each subject will undergo the Lapiplasty® Procedure. The key surgical steps of the Lapiplasty® Procedure are releasing the 1st TMT joint, anatomical correction of the 3-plane deformity, bone preparation using the Lapiplasty® Cut Guide , provisional fixation and multiplanar permanent fixation with the BIPLANAR™ Plate.
It is common for people who undergo a Lapidus Arthrodesis to be non-weight-bearing for 6-8 weeks following the surgical procedure. This time allows the bones to properly fuse together. During this 6-8 week period, people can be limited in the typical day-to-day activities they participate in, such as walking, shopping and working.
The Lapiplasty® System Implants may allow subjects to bear weight earlier than traditional procedures without negatively effecting healing/union of the joint. By allowing people to bear weight earlier than traditional methods, it is possible that people will have the opportunity to resume typical day-to-day activities faster than usual.
This study will investigate the Lapiplasty® Procedure and the Lapiplasty® System Implants with early weight-bearing. The study preference is that subject will be placed in a walking CAM boot and allowed to start protected weight bearing no later than 3 weeks after surgery. Subject can begin protected bearing weight in a CAM boot as early as the day of surgery. Subject will return to weight-bearing in shoe (running or another athletic shoe) and full unrestricted activity as directed by the physician based on the clinical stability and subject ability to safely begin weight-bearing and unrestricted activities.
Recommended Approach for Post-Operative Care and Weight-Bearing Instructions
At the first post-op visit (0-3 weeks), the subject is fitted with a CAM boot (if the subject was not fitted for a CAM boot at discharge). Subject should be provided with instructions on how to begin protected weight-bearing in the CAM boot and acceptable activities:
157 studies on the registry are indexed under Hallux Valgus; 36 are open to participants now.
This study's enrollment of 183 is above the median of 58 across 119 interventional studies indexed under Hallux Valgus.
Browse Hallux Valgus studies →Treace Medical Concepts, Inc. is the lead sponsor of 4 studies on the registry; 1 is open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
Exclusion Criteria:
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.
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.
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
BMI (body mass index)
Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.
What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Corticosteroids (steroids)
Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.
Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Immunosuppression
A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.
Read whether the line is about a condition or about medicines, and which medicines and doses it means.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
All study participants receiving Lapiplasty procedure
Device: Lapiplasty
Patients 14 years through 58 years with symptomatic hallux valgus who are treated with the Lapiplasty System will begin weight-bearing by 3 weeks and follow a defined post-operative protocol.
Radiographic recurrence of hallux valgus
Defined as IMA ≥ 12, HVA ≥ 20 and TSP as ≥ 4 at 24 Months post Lapiplasty Procedure
Time frame: 24 Months
Change in radiographic angular/positional alignment before and after the Lapiplasty Procedure
Intermetatarsal Angle (IMA), Hallux Valgus Angle (HVA) and Tibial Sesamoid Position (TSP)
Time frame: Pre-operatively, 6 Weeks, 4 Months, 6 Months, 12 Months, 24 Months, 36 Month, 48 Months, 60 Months
Clinical/radiographic healing
Evaluate clinical/radiographic healing (union vs non-union). Non-union defined as lucency at TMT joint, hardware failure and/or loss of correction, plus clinical pain at first TMT joint at 12 Months post-Lapiplasty Procedure
Time frame: 12 Months
Clinical complications
Complications due to the Lapiplasty procedure device or post-operative protocol or health conditions that could affect other health outcomes
Time frame: 24 Months
Time to start of weight-bearing in boot
The time needed for a study subject to begin bearing weight in a boot after the Lapiplasty Procedure
Time frame: 0-3 Weeks
Time to start of weight-bearing in shoes
The time needed for a study subject to begin bearing weight in a shoe after the Lapiplasty Procedure
Time frame: 0-12 Weeks
Time to return to full unrestricted activity
The time needed for a study subject to return to full unrestricted activity after the Lapiplasty Procedure
Time frame: 6 Weeks to 12 Months
Change in Visual Analog Scale (VAS) Pain Score
Patient reported foot pain intensity/0 (no pain) - 10 (worst possible pain)
Time frame: Pre-operatively, 6 Weeks, 4 Months, 6 Months, 12 Months, 24 Months, 36 Month, 48 Months, 60 Months
Change in PROMIS-29 score across multiple time-points
Patient-Reported Outcomes Measurement Information System (PROMIS-29 Profile v2.1)/lowest possible score 29 - highest possible score 145. High scores mean more of the concept being measured.
Time frame: Pre-operatively, 6 Months, 12 Months, 24 Months
Change in PROMIS-25 score across multiple time-points
Patient-Reported Outcomes Measurement Information System (PROMIS-25 Profile v2.0)/lowest possible score 25 - highest possible score 135. High scores mean more of the concept being measured.
Time frame: Pre-operatively, 6 Months, 12 Months, 24 Months
Change in MOxFQ Foot Problems score across multiple time-points
Manchester-Oxford Foot Questionnaire (MOxFQ)/0 (minimum raw score) - 64 (maximum raw score). Raw score is converted to a metric of 0 - 100 with higher score representing greater severity
Time frame: Pre-operatively, 6 Months, 12 Months, 24 Months
Change in Range of Motion
1st MTP dorsiflexion and 1st MTP plantarflexion
Time frame: 12 Months, 24 Months
Plan to share: No
No publications or documents are linked to this record.
Ran from Nov 2018 to primary completion in May 2023, 53 months.
Of 56 interventional studies with no phase under Hallux Valgus, half reached primary completion within 26 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 55. This study's 53 months is above that.
How these figures are worked out, and which studies are left out of them.
This study is active, not recruiting, as verified in Mar 2026. You cannot join it, but the record below documents what was studied.
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Treace Medical Concepts, Inc.