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Trauma

ARTHROSCOPIC IMPLANT REMOVAL OF PLATE OSTEOSYNTHESIS AFTER PROXIMAL HUMERAL FRACTURES - TECHNIQUE AND FIRST RESULTS IN COMPARISON TO THE OPEN IMPLANT REMOVAL

European Federation of National Associations of Orthopaedics and Traumatology (EFORT) - 12th Congress



Abstract

Implant removal is necessary in up to 25% of patients with plate osteosynthesis after proximal humeral fracture. Our new technique of arthroscopic implant removal offers all advantages of minimal invasive surgery. Additionally treatment of concomitant intraarticular lesions is possible. This study outlines the first results after arthroscopic implant removal in comparison with those of open implant removal.

A prospective series of 40 consecutive treated patients had implant removal and arthrolysis after plate osteosynthesis of proximal humeral fracture. Implant removal was carried out due to limitation in range of movement, secondary implant dislocation and implant impingement. 30 patients (median age 63 (30–82) years) had arthroscopic, ten patients (median age 53 (34–76) years) had open implant removal. Median 10 months after implant removal subjective patient satisfaction, Constant Murley Score (CMS) and Simple Shoulder Test were determined.

Arthroscopic implant removal showed comparable first results as open implant removal. There was no significant difference between CMS of both groups. The active shoulder abduction, flexion and external rotation improved significantly after arthroscopic and open implant removal. The simple shoulder test outlined advantages for the arthroscopic technique. After arthroscopic implant removal patients showed higher subjective satisfaction as well as faster pain reduction and mobilization. Analysis of perioperative data showed less blood loss in the group with arthroscopic implant removal. In 85% of patients with arthroscopic implant removal concomitant intraarticular lesions were observed and treated.

The arthroscopic implant removal after plate osteosynthesis of proximal humeral fractures offers all advantages of minimal invasive surgery and comparable first results as the open implant removal. The subjective and objective satisfaction of patients is high. The technique can be applied and established by all arthroscopic trained shoulder surgeons.