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. 2015 Nov;97-B(11):1577-81.
doi: 10.1302/0301-620X.97B11.36037.

Bilateral humeral lengthening in achondroplasia with unilateral external fixators: is it safe and does it improve daily life?

H I Balci  1 , M Kocaoglu  2 , C Sen  1 , L Eralp  1 , S G Batibay  1 , K Bilsel  3
Affiliations

Bilateral humeral lengthening in achondroplasia with unilateral external fixators: is it safe and does it improve daily life?

H I Balci et al. Bone Joint J. 2015 Nov.

Abstract

A retrospective study was performed in 18 patients with achondroplasia, who underwent bilateral humeral lengthening between 2001 and 2013, using monorail external fixators. The mean age was ten years (six to 15) and the mean follow-up was 40 months (12 to 104). The mean disabilities of the arm, shoulder and hand (DASH) score fell from 32.3 (20 to 40) pre-operatively to 9.4 (6 to 14) post-operatively (p = 0.037). A mean lengthening of 60% (40% to 95%) was required to reach the goal of independent perineal hygiene. One patient developed early consolidation, and fractures occurred in the regenerate bone of four humeri in three patients. There were three transient radial nerve palsies. Humeral lengthening increases the independence of people with achondroplasia and is not just a cosmetic procedure.

Keywords: Humerus; achondroplasia; lengthening; unilateral external fixator.

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