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Upper Extremity - Bibliography
Reverse shoulder arthroplasty : Does reduced medialisation improve radiological and clinical results ?
2009, Acta Orthopaedica Belgica No. 2 (Vol. 75/2) p.158-166
Ibrahim Kalouche, Nuno Sevivas, Abhijeet Wahegaonker, Philippe Sauzieres, Denis Katz, Philippe Valenti
From the Institut de la Main, Paris, and Ter Clinic, Ploemeur, France
Abstract :
The purpose of this retrospective study was to assess the effect of the reduced medialisation of the Arrow reversed shoulder prosthesis on short-term clinical and radiological results.
The clinical and radiological results of 47 Delta IIIR reversed prostheses and 49 Arrow reversed prostheses were retrospectively compared at a minimum of twelve months follow-up.
- There was a significant increase (p < 1.10-4) in range of motion from the preoperative range in the two groups except for internal rotation in the Delta III group (p = 0.1).
- Radiological analysis on antero-posterior view in neutral position showed greater lateralisation (p < 0.001) with the Arrow prosthesis.
- Scapular notching was noted in 32 patients with a Delta III prosthesis, and in no instance with an Arrow prosthesis. Complication rates were 14.9% for the Delta group and 10.2% for the Arrow group.
- The design features of the Arrow prosthesis – reduced medialisation of the center of rotation with lateralisation of the humerus – were found to be associated with slight improvement in range of motion and absence of scapular notching.