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KMID : 0950120110100020069
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Jouranl of Korean Orthopaedic Sports Medicine
2011 Volume.10 No. 2 p.69 ~ p.77
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A comparison between the modified Brostrom procedure using single and double suture anchor for chronic lateral ankle instability
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Shon Hyun-Chul
Cho Byung-Ki
Kim Yong-Min
Kim Dong-Soo
Choi Eui-Sung
Park Kyoung-Jin
Park Ji-Kang
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Abstract
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Purpose: This study was retrospectively performed to compare the clinical outcomes of modified Brostrom procedures using the single suture anchor and the double suture anchor for chronic lateral ankle instability.
Materials and Methods: Thirty-seven patients were followed up for more than 1 year after the modified Brostrom procedures using suture anchor. Single surgeon treated seventeen cases with single suture anchor and 20 cases with double suture anchor. The clinical evaluation was performed according to the Karlsson scale and Sefton grading system. Radiologic measurement of the talar tilt and anterior talar translation was performed through anterior and varus stress radiographs using Telos device.
Results: The Karlsson scale had improved significantly from preoperative average of 45.2 points to 89.4 points in single suture anchor group, and from 46.4 points to 90.5 points in double suture anchor group. According to the Sefton grading system, 15 cases (88.2%) in single suture anchor group and 18 cases (90%) in double suture anchor group achieved satisfactory results. The talar tilt angle and anterior talar translation had improved significantly from preoperative average of 13.6。and 8.6 mm to 5.4。and 4.1 mm in single suture anchor group, from 14.1。and 8.4mm to 3.9。and 4 mm in double suture anchor group. Double suture anchor technique was significantly superior in postoperative talar tilt.
Conslusion: Single and double suture anchor techniques produced similar clinical and functional outcomes except for talar tilt, which was significantly superior in double suture anchor group. Both modified Brostrom procedures using the single and double suture anchor appear to be effective treatment methods for chronic lateral ankle instability. Further evaluation of clinical outcomes and biomechanical studies in athletes are needed.
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KEYWORD
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Ankle, Chronic lateral instability, Modified Brostrom procedure, Single suture anchor, Double suture anchor
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