Approaches to distal humeral fractures in adults and comparison of treatment results

Abstract

We compared the results of surgical techniques used in the treatment of distal humeral fractures. The study included 22 patients (15 men, 7 women; mean age 52 years; range 21 to 80 years) who were treated for closed distal humeral fractures. The fractures were classified according to the Müller's classification (18 type 3, 4 type 4) and Mehne-Matta's classification of intraarticular fractures. Following open reduction, internal fixation was performed with the use of double reconstructive plates in seven patients (32%), multiple K-wires in eight patients (36%), and multiple screws in seven patients (32%). The mean follow-up period was 42 months (range 24 to 72 months). The results were assessed using the Mayo Elbow Performance Scoring system. The results were very good in five patients (22.7%), good in eight patients (36.4%), fair in five patients, and poor in four patients (18.2%). Valgus and varus deformities were found in six (27.3%) and three (13.6%) patients, respectively, and 12 patients (54.6%) had decreased muscle strength. Two patients (9.1%) in the K-wire group developed instability due to insufficient union. Heterotopic ossification was detected in five patients (22.7%). None of the patients had persistent or severe pain. Two patients (9.1%) were free of pain, while 11 patients (50%) had occasional and mild pain, and nine patients (40.9%) had moderate pain on activity. The mean Mayo Elbow Performance scores were 88, 72, and 55 with plate, screw, and K-wire applications, respectively. It was concluded that open reduction followed by internal fixation with double reconstructive plates was superior to K-wire and screw fixations in the treatment of distal humeral fractures.