Shoulder hemiarthroplasty: Outcomes and long-term survival analysis according to etiology - 01/09/12

Doi : 10.1016/j.otsr.2012.03.020

F. Gadea ^a,^⁎ , G. Alami ^b, G. Pape ^c, P. Boileau ^d, L. Favard ^a
^a Department of Orthopaedics and Trauma surgery 1, Trousseau Hospital, Tours François-Rabelais University, 37044 Tours cedex 9, France
^b Department of Orthopaedics surgery, Saint-Jérôme Hospital, Saint-Jérôme, Quebec J7Z 5T3, Canada
^c Department of Orthopaedic Surgery, Division of Upper Limb Surgery, University of Heidelberg, Schlierbacher Landstrasse 200A, 69118 Heidelberg, Germany
^d Department of Orthopaedics surgery and Sports Trauma, hôpital de l’Archet, Nice-Sophia-Antipolis University, 151, route de St-Antoine-de-Ginestière, 06202 Nice, France

Corresponding author. Tel.: +33 6 23 24 13 62.

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Summary

Background

The indications for hemiarthroplasty in glenohumeral joint diseases remain controversial and depend mainly on the original underlying diagnosis. Our objective was to investigate the influence of the primitive aetiology on long-term prosthesis survival and on the Constant-Murley score.

Materials and methods

We studied 272 shoulders with the following diagnoses: fracture sequelae (n=73), primary osteoarthritis (n=67), cuff tear arthropathy (n=43), avascular necrosis (n=40), rheumatoid arthritis (n=31), and other (n=18). Of the 272 shoulders, 139 were evaluated after at least 8 years (mean follow-up, 134 months). In all, 30 prostheses required removal. Functional status was evaluated using the Constant-Murley score and survival rate using the Kaplan-Meier method with prosthesis removal or conversion to total arthroplasty as the endpoint.

Results

Ten-year prosthesis survival was 88.13% overall, 100% in the rheumatoid arthritis group, 94.9% in the avascular necrosis group, 94.2% in the primary osteoarthritis group, 81.5% in the cuff tear arthropathy group, and 76.8% in the fracture sequelae (P=0.05). The mean Constant-Murley score after 8 years or more was 70.1 in avascular necrosis, 60.7 in primary osteoarthritis, 57.7 in fracture sequelae, 55.3 in rheumatoid arthritis, and 46.2 in cuff tear arthropathy (P=0.0006). The complication rate with the initial population as the denominator was 24.7% in fracture sequelae, 18.6% in cuff tear arthropathy, 15% in avascular necrosis, 8.9% in primary osteoarthritis, and 3.2% in rheumatoid arthritis.

Conclusions

The best indication for shoulder hemiarthroplasty is avascular necrosis and the worst indications are cuff tear and post-traumatic fracture sequellae. Rheumatoid arthritis and primary glenohumeral osteoarthritis are good indications in patients younger than 50 years of age.