Clinical Study of Triplane Fractures of the Distal Tibial Epiphysis.

DOI
  • Nishimura Yukimasa
    Department of Orthopaedic Surgery, Shimabara Onsen Prefectural Hospital
  • Tsuneoka Takehisa
    Department of Orthopaedic Surgery, Shimabara Onsen Prefectural Hospital
  • Watanabe Tadashi
    Department of Orthopaedic Surgery, Shimabara Onsen Prefectural Hospital
  • Okubo Takashi
    Department of Orthopaedic Surgery, Shimabara Onsen Prefectural Hospital
  • Ota Yuzo
    Department of Orthopaedic Surgery, Shimabara Onsen Prefectural Hospital

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Other Title
  • けい骨遠位端ｔｒｉｐｌａｎｅ　ｆｒａｃｔｕｒｅの治療経験

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Abstract

We studied the mechanism of injury, treatment, and prognosis in six cases of triplane fracture of the distal tibial epiphysis. Subjects included 4 boys and 2 girls with an average age at injury of 13 years 2 months (rarge: 10-14.5 years). Athletic activity was the cause of the fracture in five cases, with a fall the cause in the other case. Four cases were treated with a cast after closed reduction. Two cases required open reduction and internal fixation. All cases showed good clinical result on follow-up. This study suggested the following: The mechanism of injury is forced plantar flexion and external rotation of the ankle. If the fracture shows more than two millimeters of displacement after closed reduction, it requires open reduction and internal fixation.

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