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  • Title: [Lateral closing wedge osteotomy and modified cross pinning with external tension band fixation in the treatment of cubitus varus deformity in childrenLateral closing wedge osteotomy and modified cross pinning with external tension band fixation in the treatment of cubitus varus deformity in children].
    Author: Zhang C, Zhang ZJ, Wang L, Chang ZX, Yang LP, Zhao M, Li XX, Feng RP, Wang GJ, Duan XB.
    Journal: Zhongguo Gu Shang; 2017 Aug 25; 30(8):707-710. PubMed ID: 29455499.
    Abstract:
    OBJECTIVE: To explore the therapeutic effects of distal humeral lateral closing wedge osteotomy followed by modified pinning combined with external tension band fixation in the treatment of cubitus varus deformity in children. METHODS: Total 26 adult patients with cubitus varus deformity were treated by operation from March 2011 to June 2015, 15 patients were boys and the other 11 patients were girls, ranging in age from 4 to 13 years, with an average of 7.8 years. The cubitus varus angel ranged from 11 degrees to 24 degrees, with a mean(17.50±6.73) degrees, 3 patients complicated more than 10 degrees constriction of flexion. Lateral closing wedge osteotomy retaining the medial 3 to 4 mm intact cortex by lateral elbow approach was applied in these 26 patients. The wedge defect were closed and fixed by crossing pinning. The lateral column compression was achieved with external tension band(the crossing pins were bended laterally and the pin ends were hooked mutually). The pre-operative, post-oparetive and contralateral carrying angles were compared and Laupattarakasem criteria was used to evaluate the results at follow-up. RESULTS: All the patients got bony union 2 months after operation and there was no infection or nerve palsy. The average follow-up period was 18.8 months (ranged, 13 to 29 months). The carrying angle was restored to(11.50±3.17) degrees(ranged, 8 to 14 degrees). According to the Laupattarakasem evaluation criteria, 14 patients got an excellent result, 13 good and 1 fair. CONCLUSIONS: Normal carrying angle and elbow flexion could be restored by lateral closing wedge osteotomy, and stable fixation could be achieved with crossing pinning and external tension band, which is available for early mobilization.
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