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Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_II | Pages 141 - 141
1 Feb 2004
Río JAN Soleto-Martín J González-Lòpez JL Cubillo-Martín A Martínez-Serrano A Riquelme O García-Trevijano JL
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Introduction and Objectives: The aim of this study is to evaluate the results of the technique described by Ahlgren and Larsson in 1989, presenting our experience with 7 patients.

Materials and Methods: A retrospective study was conducted on the clinical records of 7 adolescents treated in our center beginning in 1991 using the technique described by Ahlgren and Larsson. There were 3 males and 4 females, ranging in age from 13 to 16.5 years (average: 14 years 10 months). All subjects had a history of repeated ankle sprains for 2 to 5 years before surgery. In all cases there was painful instability of the ankle which significantly limited physical activity. In 4 cases, symptoms were present even when walking on level ground. On clinical examination, 3 cases showed significant instability under varus stress, 3 others had moderate instability, and one case had mild instability. Surgical technique was similar in all cases and involved creating a periosteal flap with a distal anterior base, including the fibulotalar and fibulocalcaneal ligaments, which was sutured with tension to the fibula. In 3 cases, this was done with the help of Mitek metal hooks. In 5 of 7 cases, an ossicle of the fibular malleolus visible on the radiographs was removed. Duration of surgery ranged from 30 to 60 minutes, with a mean of 40 minutes. Postoperative immobilisation consisted of a plaster cast used for an average of 45 days, after which time patients progressively returned to normal physical activities. Patients were advised to use an ankle brace. Average follow-up time was 35 months, with a range of 13 to 72 months.

Results: In 5 patients, a subjective improvement in ankle stability was found on examination. Only in one case was there a significant reduction in radiographic instability when the tibiotalar joint was moved from 20° to 8°. One patient developed a superficial infection of the surgical wound which resolved with antibiotic treatment. Two patients suffered sprains within the first year after intervention, but there were no further sprains, and the injuries did not seem to affect the final outcome. However, the outcome of one of these was considered to be only fair due to occasional mild pain which did not limit physical activity. Two cases had poor outcomes due to frequent pain which limited physical activity postoperatively for 2 and 6 years, respectively. However, neither patient had repeat sprains during this period. The remaining 4 cases were considered to have had good results, as the patients were totally asymptomatic and without any limitation of physical activity.

Discussion and Conclusions: This simple, non-aggressive method is an attractive option for use in adolescents. We therefore conclude that more studies are needed to validate its effectiveness.