COMPLICATIONS OF OPERATIVE FIXATION OF PROXIMAL HUMERAL FRACTURES WITH THE PHILOS LOCKING PLATE.

Complications in internal fixation of proximal humeral fractures can lead to an unsatisfactory outcome. We retrospectively reviewed 22 patients at a mean follow-up of 13 months (range 3–30). The average age was 58 years (36–86) in 10 male and 12 female patients. The mechanism of injury involved a simple fall in 17, MCA in 3, assault in 1 and metastasis in 1. The operation was performed at a mean of 11 days after the injury (range 1–29). There were 12 3-part, 6 2-part, 2 4-part fractures, 1 fracture dislocation and 1 pathological fracture. Only 13 out of 22 patients (59%) did not develop any complications. We had hardware problems in 5 patients including hardware pull-out, plate prominence, screw penetration, loosening or breakage. 2 wound infections, 1 axillary nerve palsy and 1 peri-operative death. 3 patients (14%) had reoperations to remove the plate, 1 had revision fixation, 1 MUA, 1 open capsular release and 1 I+D of wound. Radiographic union was achieved in 18 patients (82%). We identified a relatively high rate of complications especially in alcoholic or unfit patients. Better patient selection and familiarity with the implant and operative technique are essential for a good outcome. Pain relief and union rate were satisfactory.