Result of single stage early surgical treatment of high-grade multiligamentous knee injuries (Schenck Type III, IV and V)

INTRODUCTION: The Multiligament Knee Injury is a complex knee problem and mostly associated with subluxation or dislocation of knee joint. Failure to diagnose and treat them appropriately can leads to devastating outcome particularly high-grade injury (Schenck Type 3,4 and 5). We favor single stage early surgical treatment of high grade Multiligament knee injury which leads to good functional outcome and return to work. HYPOTHESES: Single stage early surgical treatment of high grade Multiligament knee injury will leads to good functional outcome with higher IKDC and Lysholm score and helps the patients to in return early to work with higher satisfaction rate. METHODS: From June 2013 to January 2020, 42 patients with age from 18 years to 56 years with acute (< 6 weeks) Multiligament knee injury included in surgical treatment. Patients with neurovascular injury were not included in study. From 42 patients, 28 patients was type 3,8 patients was type 4 and 6 patients was type 5 in this study. In all 42 patients, single stage treatment first Intraarticular ligament (anterior cruciate ligament ACL, posterior cruciate ligament PCL or both) reconstruction done by arthroscopic method then Extraarticular ligament (medial collateral ligament MCL, lateral collateral ligament LCL, Posterolateral corner PLC) treated with repair/augmentation/reconstruction depending upon status of ligaments by open method. We used only autograft (hamstring and peroneal longus tendon) of same limb or contralateral limb. Patient evaluation done with IKDC and Lyshlom score both in preoperative and postoperative period. Patient limb was kept in full extention in brace and started with aggressive physiotherapy with passive ROM at 2 weeks in post operative period . Follow up done at 2 weeks then every 6 weeks interval till 6 months then every 3 months interval. Partial weight bearing started at 6 weeks and full weight bearing usually between 10 weeks to 12 weeks. RESULTS: Road traffic accident was the most common cause of Multiligament knee injury. Average follow up was 4 years (range 2 to 6.5 years) .40 % has excellent ,40% has good and 20% has average result. There was a significant improvement in both outcome scores as compared with the preoperative scores. Postoperatively average IKDC was 78 and Lyshlom was 86. Terminal restriction of knee movement was in 19% patients particularly those associated with medial side injury was the major complication in our study. Manipulation under anaesthesia was done in 4 cases and implant removal in 1 case and arthroscopic synovectomy and long term antibiotic in 1 case who develop early infection. Gade 1 posterior laxity and grade 1 varus stress was observed in 10 patints.Recovery after surgery takes 9 to 12 months of rehabilitation prior to returning to full activities. CONCLUSION: Proper evaluation and full diagnosis is key in Multiligament injury of knee. Failure to treat all injured structure can lead to change in knee kinematics and poorer outcome and increased risk for graft failure.Operative treatment with proper rehabilitation yields good functional and clinical outcome with early return to work and sports activity.