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Heterotopic ossification after total shoulder arthroplasty
J W Sperling1, R H Cofield, C M Rowland
1Department of Orthopedics, Mayo Graduate School of Medicine, Rochester, Minnesota, USA.
The Journal of Arthroplasty
|March 9, 2000
Summary
Heterotopic ossification (HO) after total shoulder arthroplasty is common but typically low-grade and nonprogressive. This condition generally does not impact clinical outcomes or patient satisfaction.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Heterotopic ossification (HO) is the abnormal formation of bone in soft tissues.
- Understanding HO prevalence and impact post-total shoulder arthroplasty (TSA) is crucial for patient management.
Purpose of the Study:
- To determine the frequency and clinical significance of HO following primary ingrowth TSA.
- To assess the progression and patient-related factors associated with HO development.
Main Methods:
- Retrospective review of 58 primary ingrowth TSA cases with minimum 2-year follow-up.
- Radiographic assessment for HO presence and grading (I-II) at early and late postoperative stages.
- Clinical evaluation of range of motion, pain, and overall results.
Main Results:
- HO was observed in 14 of 58 shoulders (24%), predominantly low-grade (Grade I).
- HO was evident early postoperatively and showed no significant progression.
- No preoperative patient factors predicted HO development.
- No significant differences in range of motion, pain, or results between patients with and without HO.
Conclusions:
- HO after elective TSA is common but typically low-grade and appears early.
- HO in this cohort was nonprogressive and did not negatively affect clinical outcomes.
- Routine monitoring for HO may not be necessary if clinical results are satisfactory.