A radiographic analysis of the effects of prosthesis design on scapular notching following reverse total shoulder arthroplasty
| Autor: | Laurence B. Kempton, Elizabeth Ankerson, Mamtha Balasubramaniam, J. Michael Wiater |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Male
Reoperation musculoskeletal diseases medicine.medical_specialty Shoulders Joint Prosthesis medicine.medical_treatment Radiography Prosthesis Design Prosthesis Rotator Cuff Injuries Notching Osteoarthritis medicine Humans Orthopedics and Sports Medicine Arthroplasty Replacement Range of Motion Articular Aged Aged 80 and over Rupture Orthodontics Shoulder Joint business.industry Rotator cuff injury General Medicine Middle Aged medicine.disease Arthroplasty Surgery medicine.anatomical_structure Female Shoulder joint business Range of motion |
| Zdroj: | Journal of Shoulder and Elbow Surgery. 20:571-576 |
| ISSN: | 1058-2746 |
| DOI: | 10.1016/j.jse.2010.08.024 |
| Popis: | Background Scapular notching is a well-recognized complication of reverse total shoulder arthroplasty (RTSA). This paper analyzes the effects of prosthesis design on scapular notching in RTSA. Methods From a database of all RTSA performed by the senior author, shoulders with minimum 12-month follow-up were included (65 shoulders). Notching in shoulders with a prosthesis neck-shaft angle of 155° and no center-of-rotation (COR) offset (group 1) was compared to notching in shoulders with a neck-shaft angle of 143° and 2.5-mm COR offset (group 2). P values less than .05 were considered significant. Results The notching grade was significantly higher in group 1 than in group 2, even after statistically adjusting for differences in length of follow-up ( P = .0081). The incidence of notching in group 1 at 60.7% was significantly higher than the 16.2% incidence in group 2 ( P = .0107). Conclusion Using prostheses with a smaller neck-shaft angle and increased COR offset can significantly reduce scapular notching in RTSA at 1 year, possibly improving prosthesis survival. |
| Databáze: | OpenAIRE |
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