Osteoarthritis of the shoulder in under-50 year-olds: A multicenter retrospective study of 273 shoulders by the French Society for Shoulder and Elbow (SOFEC) - 30/01/21
, Tewfik Benkalfate b, Luc Favard c, Philippe Teissier d, Christophe Charousset e, Pierre Henri Flurin f, Bertrand Coulet g, Laurent Hubert h, Jérôme Garret i, Philippe Valenti j, Jean David Werthel k, Nicolas Bonnevialle lFrench Society for Shoulder, Elbow (SOFEC)m
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Abstract |
Introduction |
Osteoarthritis (OA) of the shoulder in under-50 year-olds is rare, and treatment is delicate. Shoulder replacement incurs frequent long-term risk of progression and a high revision rate, making it unsuited to young active patients. The aim of the present study was to determine the epidemiology of shoulder OA in under-50 year-olds and to assess the clinical results of the various treatment options.
Hypothesis |
The main study hypothesis was that well-conducted non-operative treatment can allow shoulder replacement to be postponed. The secondary hypothesis was that anatomic total shoulder arthroplasty (TSA) is the treatment of choice when other options fail.
Materials and methods |
A multicenter retrospective study included primary (POA) and post-instability osteoarthritis (PIOA) in patients aged≤50years at symptom onset. Exclusion criteria comprised post-traumatic OA, rheumatoid arthritis and necrosis. Two hundred and sixty-six patients for 273 shoulders were included from 13 shoulder surgery centers: 2 types of non-operative treatment (28 by platelet-rich plasma [PRP] and 88 by viscosupplementation), 73 arthroscopies, and 150 implantations (62 humeral hemiarthroplasties [HA], comprising 10 hemi-metal, 24 hemi-pyrocarbon and 28 hemi-resurfacing; 77 anatomic total prostheses, and 11 reverse prostheses). Minimum follow-up was 12 months for non-operative treatment and 24 months for arthroplasty (some patients having both). Endpoints comprised Constant score, Subjective Shoulder Value (SSV) and number of complications/revision procedures.
Results |
Mean age at treatment was 43 years (range, 23–65 years), with 75% male predominance. Symptom onset was earlier in PIOA than in POA: 36 vs. 39 years (range, 20–50 years). PRP and viscosupplementation postponed implantation by a mean 3.5 years in 86% of cases, as did arthroscopy in 56%. ER1 restriction was the most negative factor. At 74 months’ follow-up for HA and 95 months for TSA, mean Constant score was significantly lower for HA (56 vs. 67; p=0.004), with higher rates of complications (31% vs. 11%) and implant exchange (13% vs. 9%).
Discussion/conclusion |
PRP, viscosupplementation and arthroscopy allow implantation to be postponed until the shoulder becomes stiff and painful. In case of failure, TSA is the most effective solution in the medium-term.
Level of evidence |
IV a; therapeutic study – investigating the results of treatment.
Le texte complet de cet article est disponible en PDF.Keywords : Osteoarthritis of the shoulder in under-50 year-olds, PRP, Viscosupplementation, Hemiarthroplasty, Pyrocarbon, Total shoulder arthroplasty, Glenoid wear
Plan
Vol 107 - N° 1
Article 102756- février 2021 Retour au numéro
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