Journal of Korean Foot and Ankle Society (대한족부족관절학회지)

Korean Foot & Ankle Society (대한족부족관절학회)
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Functional Evaluation after Modified Brostrom Procedure with Suture Bridge Technique for Chronic Ankle Instability in Athletes

운동선수의 만성 발목관절 불안정성에서 교량형 봉합술을 이용한 변형 Brostrom 술식 후의 기능평가

  • Park, Ji-Kang (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine) ;
  • Park, Kyoung-Jin (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine) ;
  • Cho, Byung-Ki (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine) ;
  • Im, Chae-Wook (Department of Orthopaedic Surgery, Chungbuk National University College of Medicine)
  • 박지강 (충북대학교 의과대학 정형외과학교실) ;
  • 박경진 (충북대학교 의과대학 정형외과학교실) ;
  • 조병기 (충북대학교 의과대학 정형외과학교실) ;
  • 임채욱 (충북대학교 의과대학 정형외과학교실)
  • Received : 2014.06.30
  • Accepted : 2014.07.28
  • Published : 2014.09.15
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Abstract

Purpose: Ligament reattachment technique using a suture anchor appears to show satisfactory functional outcomes and mechanical stability compared with conventional bone tunnel technique. This study was prospectively conducted in order to evaluate functional outcomes of modified Brostrom procedures using the suture bridge technique for chronic ankle instability in athletes. Materials and Methods: Twenty eight athletes under 30 years of age were followed for more than two years after undergoing the modified Brostrom procedure using the suture bridge technique. Functional evaluation consisted of the foot and ankle outcome score (FAOS), foot and ankle ability measure (FAAM) score. Range of motion and time to return to exercise were evaluated using a periodic questionnaire. Talar tilt angle and anterior talar translation were measured through stress radiographs for evaluation of mechanical stability. Results: FAOS improved significantly from preoperative mean 59.4 points to 91.4 points (p<0.001). Daily living and sport activity scores of FAAM improved significantly from preoperative mean 50.5, 32.5 points to 94.8, 87.3 points, respectively (p<0.001). Talar tilt angle and anterior talar translation improved significantly from preoperative mean $16.8^{\circ}$, 13.5 mm to $4.2^{\circ}$, 4.1 mm at final follow-up (p<0.001). Times to return to exercise were as follows: mean 10.2 weeks in jogging, 15.4 weeks in spurt running, 13.1 weeks in jumping, 11.5 weeks in walking on uneven ground, 9.1 weeks in standing on one leg, 7.2 weeks in tip-toeing gait, 8.4 weeks in squatting, and 10.6 weeks in descending stairs. Conclusion: Modified Brostrom procedure using the suture bridge technique showed satisfactory functional outcomes for chronic ankle instability in athletes. Optimal indication and cost-effectiveness of the suture bridge technique will be studied in the future.

Keywords

References

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