ABSTRACT
Objective:To explore the effectiveness and safety of pie-crusting the medial collateral ligament release (MCL) in treating posterior horn of medial meniscus (PHMM) tear in tight medial tibiofemoral compartment of knee joint.Methods:Thirty-two consecutive patients with PHMM tear in tight medial tibiofemoral compartment of knee joint were admitted to our department from January,2013 to December,2014.All patients were performed pie-crusting the MCL release at its tibial insertion with 18-gauge intravenous needle.All patients were evaluated by valgus stress test and bilateral valgus stress radiograph at postoperative 1st day,4th week and 12th week.Visual Analogue Scales (VAS),Lysholm scores,Tegner scores and International Knee Documentation Committee (IKDC) scores were recorded at the 1st,3th,6th month follow-up,then follow-up every 6 months.Results:The mean follow-up was 28 (24-36) months.All cases were negative in valgus stress test.MCL rupture,femoral fracture,articular cartilage lesion and neurovascular injury were not found at the last follow-up.The median medial joint space width of affected side and unaffected side for valgus stress radiographs were 6.8 mm and 4.3 mm (P＜0.05) at the 1st day,5.5 mm and 4.2 mm (P＜0.05) in the 4th week and 4.8 mm and 4.3 mm (P＞0.05) at the 12th week,respectively.VAS scores was changed from 4.5±1.5 preoperatively to 1.7±1.0 at the final follow-up (t=16.561,P＜0.05).Lysholm scores was changed from 52.3±5.8 preoperatively to 93.2±6.3 at the final followup (t=-41.353,P＜0.05).Tegner scores was changed from 4.1±1.1 preoperatively to 5.5±0.6 at the final follow-up (t=-18.792,P＜0.05).IKDC scores was changed from 54.5±6.2 preoperative to 93.8±4.5 at the final follow-up (t=-38.253,P＜0.05).Conclusion:Pie-crusting the medial collateral ligament release is a safe,minimal invasive and effective surgical option for posterior horn of medial meniscus tear in tight medial tibiofemoral compartment of knee joint.
ABSTRACT
OBJECTIVE: To explore the relationship between anterior cruciate ligament (ACL) reconstruction failure and medial meniscus injury and decide whether medial meniscus injury could be the judgment index for ACL reconstruction failure without trauma history. METHODS: Between March 2011 and December 2015, 117 patients underwent ACL reconstruction, and the clinical data were analyzed retrospectively. All patients had no trauma history after ACL resconstruction. MRI examination showed medial meniscus injury in 56 cases (observation group) and no medial meniscus injury in 61 cases (control group). There was no significant difference in gender, age, side, reconstructive surgery, and follow-up time between 2 groups (P>0.05). The KT-2000 arthrometer was used to measure the difference value of tibial anterior displacement between two knees in 30° knee flexion. Then wether the ACL reconsruction failure was judged according to the evaluation criteria proposed by Rijke et al. RESULTS: In observation group, the difference value of tibial anterior displacement was 5 mm in 38 patients. In control group, the difference value of tibial anterior displacement was 5 mm in 12 patients. The ACL reconstruction failure rate of observation group (67.9%) was significantly higher than that of control group (19.7%) (χ2=27.700, P=0.000). CONCLUSIONS: After ACL reconstruction, medial meniscus injury occurs under no trauma history circumstances, indicating ACL reconstruction failure.