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STABILISATION OF SEGMENTAL HUMERAL FRACTURES: INCIDENCE OF COMPLICATIONS AND FUNCTIONAL OUTCOME



Abstract

Our aim was to assess the outcome of the treatment of Segmental fracture of the humerus in adult patients.

From January 1994 to December 2003, 24 (17 females) consecutive adult patients with segmental humeral fractures were treated in our unit. Segmental fracture was defined as a two-level humeral fracture with at least one intermediate segment (AO type 12C). The mean age of the patients was 56.5 years(range 29–95) and the mean ISS was 14.1(range 9–29). The causes of injury included 8 vehicular accidents, 15 falls from heights, and 1 skiing injury. Thirteen patients had associated injuries. Three fractures were open (1 grade II, and 2 grade IIIA). At final follow up all patients were assessed in terms of radiological result and functional capacity (range of motion).

The mean follow up was 36 months (range 24–60). There were 5 radial nerve palsies. Seven cases involved 4 fracture segments. The mean length of segment was 7 cm (range 5–16). All fractures but 5(20.8%) progressed to union (1 infected non-union, 1 hypertrophic after ex-fix, 1 atrophic after stabilization with rush pins, one was associated with failure of fixation proximally and required hemiarthroplasty). The mean number of procedures to achieve union in total was 1.6(range 1–3). There was one implant failure and one persistent non-union. At final follow up, the mean abduction was 1100 (900–1400) and the mean forward flexion was 1200 (1000–1500). Internal external rotation was 700 (50–90) and 250 (20–45).

The risk of non-union is as high as 20.8 % and additional procedures often required to achieve union of the fragments. The method of stabilization depends on several factors including fracture configuration, the available bone stock and the surgeons’ expertise. Despite the severity of this injury a satisfactory outcome can be expected.

Correspondence should be addressed to Editorial Secretary Mr ML Costa or Assistant Editorial Secretary Mr B.J. Ollivere at BOA, 35–43 Lincoln’s Inn Fields, London WC2A 3PE, England; Email: mattcosta@hotmail.com or ben@ollivere.co.uk