Relation between ankle instability and general joint laxity.

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Recently we have noticed that many young patients, diagnosed as ankle instability, tended to complain not only of ankle pain, but also of other arthralgia. Consequently, it appeared to us that these arthralgia were based on general joint laxity. So we wished to conduct a comparative study between general joint laxity devised by Kuriyama (1986) and ankle instability.26 cases (52 ankles) of general joint laxity, whose ages were from 12 to 29 years old (average, 18.9yrs.), were investigated. 3 cases were male and 23 cases were female. The anterior drawer test was performed on 30 healthy adults including 52 ankles of general joint laxity and 53 injured ankles. The varus stress test was performed manually on 100 healthy adults (200 ankles) and each of the above mentioned ankles.The cases who had the history of ankle sprain showed abnormal range in anterior talar displacement (ATD, 5.60±0.83mm) and talar tilt angle (TTA, 10.50±2.00 degrees). On the other hand, the cases who had no history of ankle sprain showed normal range in ATD (2.81±0.45mm) and TTA (4.15±0.97 degrees). These data suggested that the history of ankle sprain was closely related to the ankle instability in the cases of general joint laxity.
西日本整形・災害外科学会の論文