Knee function after anterior cruciate ligament reconstruction with patellar or hamstring tendon: a meta-analysis / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>There is currently no consensus regarding the best graft type for anterior cruciate ligament reconstruction. Therefore, the aim of this study was to investigate the effects of patellar and hamstring tendon grafts on long-term knee function after anterior cruciate ligament reconstruction.</p><p><b>METHODS</b>This meta-analysis was conducted according to the methodological guidelines outlined by the Cochrane Collaboration. An electronic search of the literature was performed and all trials published between January 1966 and August 2011 comparing knee function after anterior cruciate ligament reconstruction using patellar tendon grafts with knee function after reconstruction with hamstring tendon grafts were pooled. Six studies were included in the final meta-analysis.</p><p><b>RESULTS</b>Anterior cruciate ligament reconstruction using hamstring tendon grafts resulted in greater pain upon kneeling than reconstruction using patellar tendon grafts (P = 0.001). However, both grafts resulted in similar levels of anterior tibial translation, and similar results regarding isokinetic extension/flexion tests, Lysholm scores, and the stair-hop test (P > 0.05).</p><p><b>CONCLUSION</b>Anterior cruciate ligament reconstruction using patellar or hamstring tendon grafts results in similar long-term knee function.</p>

Release and balance of the soft tissue in total hip arthroplasty for patients with Crowe III and IV type developmental dysplasia of hip / 中华外科杂志

<p><b>OBJECTIVE</b>To summarize the surgical experience of release and balance of soft tissues around hip in total hip arthroplasty for patients with severe hip dysplasia.</p><p><b>METHODS</b>From January 2001 to January 2006, 29 patients (31 hips) of adult dysplasia of hip were included in the study. Among them, there were 22 females and 7 males, age from 38 to 65 years with average of 53 years. According to Crowe classification system, there were 22 in type III, 9 in type IV, and Harris score was 42.6 preoperatively. Total hip arthroplasty was performed via lateral approach. All the acetabular cups were reconstructed at the original anatomic location through release of soft tissue around hip to restore limb length, and techniques of balance of soft tissue were applied to extend force arm of hip abductor and improve its function.</p><p><b>RESULTS</b>All the patients had restoration of limb length (ranged from 2.5 cm to 4.5 cm). One case of postoperative dislocation was occurred due to slight large of acetabular obtuse angle. Follow-up for 1-5 years (average 3.2 years) in 29 patients, the Harris score increased to 85.4 postoperatively. All hips had released from pain and functioned well.</p><p><b>CONCLUSIONS</b>In order to restoration anatomic structure and physiologic function of affected hip, the technique of release and balance of soft tissues around hip should be applied and cautioned in arthroplasty of dysplastic hip.</p>

Knee replacement of the treatment of malignant tumor of the proximal tibia and early follow-up / 中华外科杂志

<p><b>OBJECTIVE</b>To discuss the clinical effects of using rotating hinge prosthesis in treating primary malignant tumor of the proximal tibia.</p><p><b>METHODS</b>After the malignant tumor of the proximal tibia was extensively resected or radically resected, rotating hinge prosthesis replacement was performed for reconstruction, while neoadjuvant chemotherapy was used in treating the osteosarcoma.</p><p><b>RESULTS</b>The average follow-up period was 4.2 years. There was no local recurrence and metastasis in 22 patients, though there was recurrence in 8 patients. The MSTS functional scores of all different items 4 years after the operations were above 3, which showed the clinical results were satisfactory.</p><p><b>CONCLUSIONS</b>It is an efficacious method for the treatment of malignant tumor of the proximal tibia by using rotating hinge prosthesis. It has the advantage of early recovery of joint function.</p>