Journal of Korean Foot and Ankle Society (대한족부족관절학회지)

Korean Foot & Ankle Society (대한족부족관절학회)
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Reconstruction for Chronic Lateral Instability of the Ankle by Chen Method

Chen 술식을 이용한 족근관절의 만성 외측 불안정에 대한 재건술

  • Lee, Gi-Haeng (Department of Orthopaedic Surgery, Bucheon St. Mary's Hospital) ;
  • Yoo, Jong-Min (Department of Orthopaedic Surgery, Seoul St. Mary's Hospital) ;
  • Na, Gee-Tae (Department of Orthopaedic Surgery, Bucheon St. Mary's Hospital) ;
  • Kong, Yoon-Bae (Department of Orthopaedic Surgery, Bucheon St. Mary's Hospital) ;
  • Chu, In-Tak (Department of Orthopaedic Surgery, Seoul St. Mary's Hospital)
  • 이기행 (부천성모병원 정형외과) ;
  • 유종민 (서울성모병원 정형외과) ;
  • 나기태 (부천성모병원 정형외과) ;
  • 공윤배 (부천성모병원 정형외과) ;
  • 주인탁 (서울성모병원 정형외과)
  • Received : 2010.04.19
  • Accepted : 2010.05.13
  • Published : 2010.06.15
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Abstract

Purpose: This study was designed to evaluate the clinical and radiographical results of anatomical reconstruction by Chen method for chronic lateral ankle instability. Materials and Methods: Fifteen patients with chronic lateral ankle instability who had undergone anatomical reconstruction of anterior talofibular and calcaneofibular ligaments by Chen method were evaluated retrospectively. Average age of the patients was 31.3 years, and average follow-up period was 15.5 months. Preoperative and postoperative radiographs including varus stress view and magnetic resonance imaging (MRI) were analyzed. The clinical evaluation was performed according to the American Orthopaedic Foot and Ankle Society (AOFAS) scale. Results: Radiographically average talar tilt angle was $15.3^{\circ}$ preoperatively, and the difference with contralateral normal side was $10.1^{\circ}$. At last follow up, talar tile angle and the difference with contralateral side improved to $5.9^{\circ}$ and $1.3^{\circ}$ respectively. AOFAS scale was 66.6 preoperatively and 87.3 postoperatively. In MRI findings, four patients had associated intra-articular lesion such as articular cartilage defect, synovitis and osteoarthritis. The talar tilt angle improvement and AOFAS scale of patients without intra-articular lesion was better than those of four patients with intra-articular lesions. Surgical wound pain occurred in six patients and sural neuropathy in three patients. Conclusion: The anatomical reconstruction by Chen method was an easy and effective procedure for symptomatic chronic lateral ankle instability. Careful operative technique may prevent the surgical wound pain and sural neuropathy.

Keywords

References

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