Longterm Results of Arthroscopic Bankart-Repair: The Influence of the Glenoid Defect
ESSKA Academy. Ostermann R. 05/09/18; 212171; P21-1750 Topic: Arthroscopic Surgery
Dr. Roman C. Ostermann
Dr. Roman C. Ostermann
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Objectives: The clinical importance of anterior glenoid defects below 25% of the glenoid surface for longterm outcome is not well defined. Thus, the aim of the present study was to investigate, whether glenoid defects (<25% of the glenoid surface) measured on multiplanar CT-images influences the longterm outcome of arthroscopic Bankart repair.

Methods: Thirty patients (4f, 26m; 1 bilateral, Ø29y) undergoing arthroscopic anterior Bankart-repair at our department between 2002-2003 were included in the present study. The preoperative glenoid defect was measured according to the previously described "Pico" method on multiplanar CT reconstructions. Clinical results (ROWE, ROM), re-instabilty rate and satisfactory with surgery were evaluated at the latest follow-up (Ø159 months).

Results: 84% of patients showed a preoperative glenoid defect (mean 9.1±6.5%; range 0-24.3%). Longterm rate of re-instability was 20% in the current study cohort. Nonetheless, 88% of patients were very satisfied and would undergo surgery again. Preoperative glenoid defect did not have a significant influence on clinical results. However, patients younger than 20 years at initial dislocation or more than 3 dislocations prior to surgery showed an increased risk for recurrent instability.

Conclusions: Glenoid defects under 25% did not influence longterm clinical outcome or re-instability rates following arthroscopic Bankart repair. However, age under 20 years at initial dislocation or more than 3 dislocations prior to surgery were significant risk factors for recurrent instability.

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