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KMID : 0361620080430030359
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Journal of the Korean Orthopaedic Association
2008 Volume.43 No. 3 p.359 ~ p.365
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Syndesmosis Injury Associated with the Weber Type B Lateral Malleolar Fracture
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Park Si-Young
Park Sang-Won
Han Seung-Beom
Jeong Woong-Kyo
Choi Keun-Seok
Lee Soon-Hyuck
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Abstract
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Purpose: We evaluated the syndesmosis instability associated with Weber type B lateral malleolar fractures.
Material and Methods :Eighty one Weber type B lateral malleolar fractures were evaluated and classified according to the radiologic criteria. Syndesmosis instability was checked with a hook test during operation. The radiological and clinical results were assessed.
Results:Twenty two cases were associated with a widening of the distal tibiofibular distance. Sixteen (73%) had syndesmosis instability confirmed with a hook test and were fixed with a syndesmotic screw. Eight (66%) out of 12 Wagstaffe fractures were fixed with a syndesmotic screw due to the instability. The distal tibiofibular distance was 7.4±2.4 mm, 4.6±1.9 mm and 4.9±1.9 mm preoperatively, postoperatively, and at the final follow up, respectively. All cases achieved union and good clinical results with more than 85 on the AOFAS score were obtained.
Conclusion:Weber type B lateral malleolar fractures can be associated with a syndesmosis injury. An intraoperative hook test should be carried out for accurate diagnosis. Considerable attention needs to be paid to Wagsteffe fractures, because of the high probability of combining syndesmosis instability.
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KEYWORD
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Ankle, Syndesmosis, Fracture, Instability
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