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KMID : 0386420060190010034
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Journal of the Korean Fracture Society
2006 Volume.19 No. 1 p.34 ~ p.40
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Subtalar Distraction Arthrodesis for Calcaneal Malunion
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정형진/Chung HJ
염재광/정국진/전재민/Yum JK/Chung KJ/Jeong JM
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Abstract
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Purpose: To evaluate the results and efficacy of the subtalar distraction arthrodesis on patients with complications due to malunion after intra-articular calcaneal fracture.
Materials and Methods: From October 2001 to September 2004, we operated on 10 patients (14 cases). There were 9 male patients and one female; their mean age was 41 years old. Ten cases among them were operated initially. The mean period between initial injury and arthrodesis was 18 months. The mean follow up period was 16 months. During the operation, we used extensile lateral approach and arthrodesis was performed using tricortical bone block and cannulated screws. The ankle-hindfoot scale was used for clinical evaluation. In radiologic analysis, plain X-ray and CT of the both feet were examined for union and various parameters.
Results: Thriteen cases achieved radiologic bone union. The mean ankle-hindfoot scale (maximum: 94 points) increased from 52.4 points preoperatively to points 77.2 at the final follow-up. The radiologic analysis of the pre and postoperative standing lateral radiograph showed mean increase of 6.9 mm in talo-calcaneal height, 5.2 degrees in talocalcaneal angle, 4.3 degrees in talar declination angle and average decrease of 4.5 degrees in talo-first metatarsal angle.
Conclusion: The short term result of the subtalar distraction arthrodesis using tricortical bone block was promising, but longer follow-up will be needed.
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