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EFFICACY OF THE PLANT TAN PLATE FOR FIXATION OF PROXIMAL HUMERUS FRACTURES EARLY EXPERIENCE WITH NEW IMPLANT



Abstract

This aim of this study is to evaluate the efficacy of the Plant Tan plate, a new implant introduced for comminuted proximal humerus fractures. This paper presents the results of 10 patients who underwent the procedure over a two year period.

Methods : Two and three part proximal humeral fractures continue to be a difficult problem and accurate fixation is necessary for optimum functional outcome.

Ten patient had plant Tan plate fixation for proximal humerus fractures from January 2002 till January 2004. Details including patient demographics, the type of fracture, the bone quality, significant co morbid factors, the surgical approach union rate and complications were noted. Outcome was assessed using the Constant score and comparing with the opposite side and the Oxford shoulder questionnaire.

Results : After an average follow up of 6 months, 80% of the patients were satisfied with the result of surgery at the time of the most recent examination. The union rate was 85 %. The significant complications were infection ( 20 % ) and the development of avascular necrosis (1/10). The screw penetration into the shoulder joint was found to be as high as 50 % though it was not associated with poor result.

Conclusion : The early results of the Plant Tan plate are encouraging with good functional results in most patients. Careful case selection with proper indication, accurate reduction, and subchondral screw placement with purchase in the inferior portion of the humeral head along with early mobilisation should be considered as key factors for better outcome.

Correspondence should be addressed to BESS c/o BOA, 35-43 Lincoln’s Inn Fields, London WC2A 3PE