Related Experiment Video
Updated: Jan 18, 2026
10:10
Reverse Total Shoulder Arthroplasty
Published on: July 5, 2011
43.8K
Conversion to Stemless Reverse Total Shoulder Arthroplasty After Dislocation of a Stemless Anatomic Implant in a
Saif L Juma1, Kamil R Jarjess2, Jamil Haddad3
1Department of Osteopathic Medicine, Michigan State University, East Lansing, Michigan, USA, msu.edu.
Case Reports in Orthopedics
|January 16, 2026
Summary
Revision of a dislocated stemless anatomic shoulder arthroplasty (aTSA) to a stemless reverse shoulder arthroplasty (rTSA) successfully restored function. This bone-preserving approach offers a viable alternative for managing instability after primary aTSA.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
- Arthroplasty Research
Background:
- Stemless anatomic total shoulder arthroplasty (aTSA) preserves bone stock but has a notable instability rate (20-32%) requiring revision.
- Stemless reverse total shoulder arthroplasty (rTSA) shows promise but is investigational in the US.
- Implant dislocation and subscapularis failure after stemless aTSA is a significant complication.
Purpose of the Study:
- To report the first clinical and radiographic outcomes of converting a dislocated stemless aTSA to a stemless rTSA.
- To evaluate the feasibility of component retention in stemless revision shoulder arthroplasty.
- To assess the bone-preserving benefits of this revision strategy.
Main Methods:
- A 54-year-old female with glenohumeral osteoarthritis underwent primary stemless aTSA.
- The patient experienced implant dislocation and subscapularis failure 8 weeks postoperatively.
- Conversion to stemless rTSA was performed with retention of the well-fixed stemless humeral component.
Main Results:
- The patient achieved excellent functional outcomes at 2-year follow-up.
- Improved range of motion and stable radiographic findings were observed.
- The revision procedure preserved proximal humeral bone stock and reduced operative time.
Conclusions:
- Off-label conversion from stemless aTSA to stemless rTSA is a successful bone-preserving revision strategy.
- This approach can effectively manage instability and tendon failure after primary stemless aTSA.
- Component retention in stemless revision arthroplasty yields favorable short-term outcomes.
