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Acromial Cupping with Lodged Bioinductive Collagen Implant Following Rotator Cuff Repair: A Case Report
Ana Rita Senra1,2, Maria João Leite1,2,3, Rafael Dias4
1Orthopaedic Department, Hospital CUF Porto, Porto, Portugal.
JBJS Case Connector
|July 3, 2025
Summary
A Regeneten implant migrated and lodged in the acromion after rotator cuff repair. Despite imaging findings, the patient experienced no pain or functional limitations, showing favorable outcomes with conservative management.
Area of Science:
- Orthopedic surgery
- Biomaterials in medicine
Background:
- Rotator cuff retears are common after initial repair.
- Regeneten implants are used to augment rotator cuff repairs.
- Implant migration is a potential complication.
Purpose of the Study:
- To report the first case of Regeneten implant migration and acromial lodging.
- To discuss the clinical implications and management of implant migration.
Main Methods:
- Case report of a 39-year-old male patient.
- Treatment with a Regeneten implant for supraspinatus retear.
- Postoperative magnetic resonance imaging (MRI) at 6 months.
- Clinical follow-up at 12 months.
Main Results:
- MRI revealed a migrated Regeneten implant lodged at the inferior acromion margin.
- Associated findings included acromial cupping, remodeling, and fibrosis.
- At 12 months, the patient had symmetrical strength, full range of motion, and no pain.
Conclusions:
- This is the first reported case of Regeneten implant migration with acromial lodging.
- Asymptomatic implant migration may not necessitate surgical intervention.
- Conservative management can lead to favorable outcomes despite imaging abnormalities.
- Close postoperative monitoring is crucial for detecting complications.
