Evaluation of changes in biomechanical, clinical and functional outcome of donor ankle following ACL reconstruction with peroneus longus tendon autograft.

Patients presenting to Orthopaedics department, All India Institute of Medical Sciences, Mangalagiri, with ACL tear confirmed on MRI planned for ACL reconstruction will be considered for the study. A complete history and detailed physical examination will be done. Informed written consent will be taken before the patients are included in the study. Patients with complete tear of the ACL confirmed by MRI findings will then undergo ACL reconstruction using peroneus longus tendon autograft. The Patient will be assessed for gait analysis and foot pressure parameters of bilateral ankle using DIERS Formetric 4D dynamic gait analysis system prior to the surgery and after surgery at 6 weeks, 3 months, 6 months. The parameters which will be studied include Gait analysis parameters like step length, step time, stride length, stride time, foot rotation, cadence, stance phase, load response, single support, pressuring, swing phase and foot pressure analysis will be done. Foot pressure analysis will be done at regular intervals to see changes in foot pressure. Details of gait analysis and foot pressure analysis will be noted.

Patients will be evaluated preoperatively and postoperatively at 6 weeks, 3months and 6 months interval for ankle and foot pain and the following scores will be recorded, American Orthopaedic Foot and Ankle Society (AOFAS) Ankle and Hindfoot scale and Foot and Ankle Disability Index (FADI). Patient’s  knee pain and functional outcome will be assessed by Tegner Lysholm score. Post surgery the patient will be evaluated for pain at the donor site using the VAS score on day 0, 2nd day, 5th day and 14th day of surgery.