Clinical Effect of Anterior Cruciate Ligament Reconstruction Combined with High Tibial Osteotomy in the Treatment of Anterior Cruciate Ligament Injury Combined with Osteoarthritis
Department of Joint and Sports Medicine,the Second Hospital of Tangshan
Abstract:Objective To investigate the clinical effect of anterior cruciate ligament reconstruction combined with high tibial osteotomy in the treatment of anterior cruciate ligament injury combined with medial compartment osteoarthritis.Methods A retrospective analysis was performed on 18 patients with anterior cruciate ligament injury complicated by medial single-compartment osteoarthritis at the Second Hospital of Tangshan from June 2015 to February 2018.There were 10 males and 8 females with an average age of (51.20±4.80)years (range,42~57 years).Cruciate ligament reconstruction and tibial high osteotomy were performed simultaneously.Follow-up visits were made at 1,6,12 and 24 months after operation.Full-length radiographs of lower limbs and anteroposterial-lateral radiographs of affected knee were reviewed,the union of osteotomy line was investigated,and the passing point of mechanical axis of lower limb and posterior tibial angle were measured.At the last follow-up,Lachman test and KT-1000 test were performed to objectively evaluate the stability of the knee joint.Lysholm score,Tegner knee motion score and international knee documentation committee (IKDC) score were used to evaluate knee function.Results All patients were followed up for 24~36 months,with an average of (28.30±5.70)months.There was no joint stiffness,infection,bone nonunion or delayed union during the follow-up period.2 patients developed postoperative tibial vein thrombosis and received active antithrombotic therapy.At the last follow-up,Lysholm score,Tegner knee motion score and IKDC score were significantly improved compared with those before surgery(P<0.05).At last follow-up,the mechanical axis of lower extremity was adjusted from preoperative varus (7.05±2.34)° to postoperative valgus (1.22±0.43)°,and the difference was statistically significant (P<0.05).The posterior angle of tibial plateau was (9.16±1.41)° before operation and (10.24±2.37)° after operation,and the difference was not statistically significant (P>0.05).Continuous radiographs in 4 patients showed progressive medial compartment osteoarthritis exacerbation,Lachman test was positive in 3 cases.Conclusion Anterior cruciate ligament reconstruction combined with high tibial osteotomy can effectively improve joint stability and osteoarthritis symptoms,and the clinical effect is satisfactory,but the high rate of arthritis progression and ligament relaxation should not be ignored.