Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Arthroplasty - Shoulder
Abstract number: 23303
KINEMATIC AND CLINICAL EVALUATION OF SHOULDER FUNCTION AFTER A
REVERSE SHOULDER PROSTHESIS
T.D.W. ALTA 1 , J.M.H. BERGMANN 2 , T.W.J. JANSSEN 3 , H.E.J. VEEGER 4 , B.J.
BURGER 5 , W.J. WILLEMS 1
1 Onze Lieve Vrouwe Gasthuis, Amsterdam (NETHERLANDS), 2 Division of Applied
Biomedical Research, King’s College London, London (UNITED KINGDOM),
3 Duyvensz-Nagel Research Laboratory, Rehabilitation Centre Amsterdam,
Amsterdam (NETHERLANDS), 4 Research Institute MOVE, Faculty of Human
Movement Sciences, VU University, Amsterdam (NETHERLANDS), 5 Medical Centre
Alkmaar, Alkmaar (NETHERLANDS)
INTRODUCTION: Generally results of the Reverse Shoulder Prosthesis are very
satisfying. However, active ROM is often compromised. Aim of this study: perform a
kinematic and clinical analysis of the Reverse prosthesis to provide more precise
information on its glenohumeral motion pattern. METHODS: During three active
ROM tasks, motion patterns of 31 patients (35 shoulders) with a reverse prosthesis
(19 primary and 16 revision) were measured. Average age: 71 years (58-85).
Average follow-up: 23 months (4-63). We used a six degree-of-freedom
electromagnetic tracking device recording 3D kinematic data in a non-invasive,
precise way (Flock of Birds method), differentiating between glenohumeral and
scapulothoracic motion. These data where correlated to obtained Constant score,
SST, DASH-score, integrity of m.teres minor and acromial-prosthetic distance.
RESULTS: Constant score improved from 24 (5-47) to 50 points (8-87) (p