MR TOMOGRAPHIC MONITORING OF HEALING OF THE FIBULAR COLLATERAL LIGAMENT IN THE ANKLE AFTER RECENT RUPTURE

The therapy of fibular ligaments ruptures is still a controversial subject. Reports on healing processes following operative or conservative treatment have been verified hitherto by means of clinical examinations and stress tests. The MRT, as a highly sensitive non-invasive method, allows exact documentation of the ligament structures in the ankle joints. This technique was used in a randomized clinical trial over a 6-month period. The 29 patients (ages 17 - 51 years) had recent ligament rupture [admission criteria: clinical signs of trauma, talar tilt in anteroposterior stress radiographs (15 kp) greater-than-or-equal-to 10-degrees, talar shift greater-than-or-equal-to 10 mm] were examined with regard to ligament healing during functional therapy with AIRCAST pneumatic leg braces. Within the first week an MRT was done for verification of ligament injury. Treatment was conservative and functional: lower leg cast for 2 weeks and subsequent mobilization with protection provided by an AIRCAST brace. Follow-up examination was 3 months after injury, taking the form of clinical examination, a-p-radiographs with stress tests, and MRT. In all patients both clinical and radiological examination confirmed that ligament structures had healed, as was also verified by MRT.