髋关节翻修术中应用生物型臼杯高位放置技术的研究
发布时间:2018-09-18 18:30
【摘要】:目的:探讨髋关节翻修术中生物型臼杯高位放置重建髋臼的可行性及中期疗效。方法:2006年3月至2015年3月在髋关节翻修术中应用生物型臼杯高位放置技术的患者34例(35髋),男15例(15髋),女19例(20髋);年龄26~74岁,平均55岁。因无菌性松动翻修22髋,因关节置换术后感染翻修13髋。PaproskyⅡA型3髋、ⅡB型4髋、ⅡC型2髋、ⅢA型17髋、ⅢB型9髋。股骨侧采用远端固定组配式锥形柄。术后髋关节旋转中心高度均大于2.5 cm,按旋转中心高度分成两组:适当高位放置组(旋转中心高度2.5~3.5 cm)和高旋转中心组(旋转中心高度大于3.5 cm)。比较两组术前及末次随访时Harris髋关节评分、疼痛视觉模拟评分(visual analogue scale,VAS)、双下肢长度差、Trendelenburg征及跛行程度。摄髋关节正位X线片测量旋转中心高度、旋转中心至泪滴的水平距离,观察臼杯周围透光线及假体移位情况。结果:手术时间100~220 min,平均168 min。术中出血量300~1 200 ml,平均825 ml。随访时间12~116个月,平均49.2个月。末次随访时Harris髋关节评分由术前(36.52±17.17)分提高至(83.46±7.63)分,疼痛 VAS 评分由术前(8.06±1.24)分降低至(1.91±1.62)分,差异均有统计学意义(P0.05)。患髋旋转中心高度由术前(1.47±±0.33)cm提高至术后(3.85±1.13)cm,差异有统计学意义(t=12.15,P=0.00);旋转中心至泪滴的水平距离术前(3.33±0.53) cm、术后(3.23±0.63) cm,差异无统计学意义(t=0.98, P=0.64)。末次随访时Trendelenburg征阳性7髋、阴性28髋,其中17髋由术前阳性转为阴性;重度跛行1例、中度破行1例、轻度跛行8例、无跛行24例;下肢短缩由术前(1.84±1.92) cm降至(0.71±1.57) cm,差异有统计学意义(t=4.24,P= 0.00 )。6例应用特小臼杯极度高位放置(旋转中心高度大于5.0 cm )的PaproskyⅢB患者Harris髋关节评分由术前 (26.65±13.46 )分提高至末次随访的(79.83±10.55)分,疼痛VAS评分由术前(8.50±1.38)分降至(2.83±2.64)分,差异均有统计学意义(P0.05)。1例术后4年出现臼杯松动,再次行翻修术。无假体相关感染、假体脱位、假体周围骨折等并发症发生。结论:生物型臼杯高位放置并尽量向内侧移位能增加与宿主骨的接触,臼杯适当高位放置和高位放置均能缓解疼痛和改善功能。手术简化,尤其是使用特小臼杯极度高位放置适用于无法使用其他髋臼重建方法的情况。
[Abstract]:Objective: to investigate the feasibility and mid-term effect of acetabular reconstruction by high-level placement of biotype acetabular cup during hip revision. Methods: from March 2006 to March 2015, 34 patients (35 hips), 15 males (15 hips) and 19 females (20 hips), aged 2674 years (mean 55 years), were treated with biotype acetabular cup high placement during hip revision. 22 hips were modified because of aseptic loosening, 13 hips were infected by arthroplasty. 3 hips were modified with type 鈪,
本文编号:2248753
[Abstract]:Objective: to investigate the feasibility and mid-term effect of acetabular reconstruction by high-level placement of biotype acetabular cup during hip revision. Methods: from March 2006 to March 2015, 34 patients (35 hips), 15 males (15 hips) and 19 females (20 hips), aged 2674 years (mean 55 years), were treated with biotype acetabular cup high placement during hip revision. 22 hips were modified because of aseptic loosening, 13 hips were infected by arthroplasty. 3 hips were modified with type 鈪,
本文编号:2248753
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