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KMID : 1130920090130010068
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Journal of Korean Foot and Ankle Society
2009 Volume.13 No. 1 p.68 ~ p.74
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Subtalar Distraction Two Bone-Block Arthrodesis for Calcaneal Malunion
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Chung Hyung-Jin
Bae Su-Young
Lee Hee-Sung
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Abstract
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Purpose: This study was designed to evaluate the results and efficacy of subtalar distraction two bone-block arthrodesis for calcaneal malunion.
Materials and Methods: From January 2004 to June 2007, we operated on 8 patients (12 cases). There were 7 male patients and 1 female patient; their mean age was 42 years. 8 cases among them were operated initially. The period between initial injury and arthrodesis was 21 months. At an average follow up was 19 months. In operation, we used extensile lateral approach and arthrodesis was performed through tricortical two bone-block and cannulated screws. The Ankle-Hindfoot scale was used for clinical evaluation. In radiologic analysis, plain X-ray and CT were examined union and various parameters.
Results: All cases achieved radiologic union at the final follow-up. The mean Ankle-hindfoot scale (maximum of 94 points) increased from 43.4 points preoperatively to 84 points at the final follow-up. The radiologic analysis of the pre- and postoperative standing lateral radiographs showed and average increase of 5.5 mm in talo-calcaneal height, in talocalcaneal angle, in talar declination angle and decrease of in talo-first metatarsal angle.
Conclusion: The short term results of subtalar distraction two bone-block arthrodesis is promising, but longer follow-up was needed.
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KEYWORD
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Calcaneus, Malunion, Distraction two bone-block arthrodesis
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