Modified biplanar open-wedge high tibial osteotomy with rigid locking plate to treat varus knee

Objective： To introduce and characterize the modified biplanar opening high tibial osteotomy with rigid fixation to treat varus knee in young and active patients. Methods： Between June 2001 to July 2008, 18 patients with monocompartmental degeneration of the knee combined with a varus malalignment of the leg had the modified biplanar opening high tibial osteotomy and the osteotomy was fixed with the locking plates （Locking Compression Plate System）. The mean varus deformity before operation was 11.5° （5°- 19°） and no degenerative changes were found in other departments. Stability of the knee was normal in 15 patients, but ruptures in anterior cruciate ligaments or lateral collateral ligament were presented in the remaining 3 patients. Preoperative symptom was mainly limited in the pain of medial compartment. The preoperative and follow-up data for the range of motion and Lysholm score were determined. Subjective satisfactory examination was also applied to the patients for the operation they selected. Results： All of the patients were followed up with an average of 32.5 months （12-82 months）. There was no ununion or delayed union in this group during the follow-up period. No complications like broken plate, nerve injury, or blood vessel injury occurred. The postoperative average corrected degree was 9.5° （5.5°-18°）. No degenerations developed in the three departments of the knee. The Lysholm scores before and after surgery were 42.5 and 77.5, respectively （P〈0.01）. The overall fineness rate was 83.3%. The subjective satisfactory survey demonstrated that about 83.3% patients showed satisfactory on the operation. There was no obvious difference in the range of motion before and after operation, but significant changes were found in the Lysholm score and varus degree from preoperative to follow-up. Conclusion： Proximal opening high tibial osteotomy performed in conjunction with the special rigid locking plate yielded good results for symptomatic genu varum. This new classic technique can be effectively applied to the medial compartment degeneration of the knee in active young patients.

介绍并且描绘修改双性人的目的有到在年轻、积极的病人的对待内翻足膝的僵硬固定的平面开的高胫骨的截骨术。在到 2008 年 7 月的 2001 年 6 月之间的方法，有与腿的内翻足 malalignment 相结合的膝的单音的分割为若干部分的退化的 18 个病人有修改双性人平面开的高胫骨的截骨术和截骨术与锁住的盘子(锁住的压缩板系统) 被修理。在操作前的吝啬的内翻足畸形是 11.5 °(5 ° &#8764； 19 °) 和没有退化变化在另外的部门被发现。膝的稳定性在前面的十字形的系带在 15 个病人，而是破裂是正常的或侧面的并行的系带在留下被介绍 3 个病人。外科手术前的症状主要中间的分隔空间的疼痛地被限制。外科手术前并且为运动和 Lysholm 分数的范围的后续数据被决定。主观令人满意的检查也为他们选择了的操作被用于病人。结果所有病人被跟随在上面与 32.5 个月(12 个 ∼82 月) 的一般水准。没有 ununion 或在后续时期期间在这个组推迟了联合。象破板，神经损害，或血容器损害一样的复杂并发症都没发生。手术后的平均的改正的度是 9.5 °(5.5 ° &#8764； 18 °) 。没有退化在膝的三个部门发展了。在外科前后的 Lysholm 分数是 42.5 和 77.5，分别地(P<0.01 ) 。全面上好率是 83.3% 。主观令人满意的调查证明大约 83.3% 病人出现了在手术上令人满意。在在操作前后的运动的范围没有明显的差别，但是重要变化在 Lysholm 分数和内翻足度被发现从对后续外科手术前。高胫骨的截骨术与特殊的僵硬锁住板一起执行了的结论近似的洞为征兆的膝 varum 产出好结果。这种新经典技术能有效地在积极年轻病人被用于膝的中间的分隔空间退化。