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Tight-fitting radial head prosthesis: does stem size help prevent painful loosening?

Laumonerie, Pierre and Reina, Nicolas and Gutierrez, Claudia and Delclaux, Stephanie and Tibbo, Meagan E. and Bonnevialle, Nicolas and Mansat, Pierre Tight-fitting radial head prosthesis: does stem size help prevent painful loosening? (2018) International Orthopaedics, 42 (1). 161-167. ISSN 0341-2695

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Official URL: https://doi.org/10.1007/s00264-017-3644-6

Abstract

INTRODUCTION: The most common reason for removal of well-fixed radial head prostheses is painful loosening. We hypothesised that short-stemmed prostheses, used for radial head arthroplasty, are not associated with an increased risk of implant loosening. METHODS: From 2002 to 2014, 65 patients were enrolled in a retrospective single-centre study. The radial head prostheses were classified as having either a long (30-mm) or short (16- to 22-mm) stem. The long-stemmed implants comprised 30 GUEPAR® DePuy Synthes (West Chester, PA, USA) and 20 Evolutive® Aston Medical (Saint-Etienne, France) devices; the short-stemmed implants comprised nine RECON and six STANDARD rHead® SBI-Stryker (Morrisville, PA, USA) devices. At last follow-up, clinical (range of motion, Disabilities of the Arm, Shoulder, and Hand score, Mayo Elbow Performance score) and radiographic (osteolysis) outcomes were assessed. RESULTS: At a mean follow-up of 76.78 months (24-141), the rate of painful loosening [6 (40%) vs 8 (16%), p = 0.047] and osteolysis [12 (80%) vs 23 (46%), p = 0.02] were significantly higher in patients with short-stemmed versus long-stemmed implants. Despite the significant difference in loosening between stems as groups, individual stem length was not determined. CONCLUSIONS: Tight-fitting implants with short stems are more prone to painful loosening.

Item Type:Article
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Other partners > Centre Hospitalier Universitaire de Toulouse - CHU Toulouse (FRANCE)
Other partners > Mayo Clinic (USA)
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Deposited By: Pascal SWIDER
Deposited On:15 Mar 2019 09:11

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