强直性脊柱炎胸腰段后凸畸形矫形前后影像学参数分析

【摘要】 目的 通过对强直性脊柱炎（ankylosing spondylitis, AS）僵硬性胸腰段后凸畸形矫形前后影像学参数对比分析及相关性研究,探讨经椎弓根椎体截骨（pedicle subtraction osteotomy,PSO）矫形对矢状面脊柱骨盆序列的影响,进而探究AS后凸患者脊柱骨盆序列的代偿机制。 方法 2004年1月～2010年3月, 38例AS僵硬性胸腰段后凸畸形患者行后路单节段或双节段截骨矫形椎弓根螺钉内固定术。矫形前后拍摄全脊柱侧位X线片,测量AS患者全脊柱后凸角（Cobb T1~S1）、矢状面平衡距离（sagittal vertical axis,SVA）、骨盆入射角（pelvic incidence,PI）、骨盆倾斜角（pelvic tilt,PT）、骶骨倾斜角（sacral slope,SS）及截骨角度（PSO angle）。观察矫形前后影像学参数变化,控制影响患者个体差异的因素,将影像学参数做偏相关分析。 结果 矫形前,Cobb T1~S1=56°±28°,PI=45°±9°,PT=38°±13°,SS=7°±12°,SVA=21 cm±9 cm;矫形后,Cobb T1~S1=11°±22°,PI=46°±9°,PT=21°±10°,SS=24°±9°,SVA=9 cm±5 cm。矫形前,PT、SVA与Cobb T1~S1偏相关系数分别为r=0.81（P＜0.01）、0.64（P＜0.01）;矫形后,PT、SVA与Cobb T1S1偏相关系数分别为r=0.58（P＜0.05）、0.72（P＜0.01）。PSO angle与Cobb T1~S1、PT偏相关系数分别为r=－0.82（P＜0.01）、－0.56（P＜0.05）,PSO angle与SVA无相关性。 结论 矫形前后,AS患者通过后旋骨盆代偿全脊柱后凸所致的矢状面失平衡;骨盆后旋程度、矢状面平衡距离与全脊柱后凸程度呈正相关;人体自身代偿机制优先恢复骨盆的中立状态而非改善矢状面平衡距离。     

伸直位骨性强直膝的全膝关节置换术

 目的 探讨伸直位骨性强直膝全膝关节置换术的手术方法与临床疗效。方法 2000 年6月至2007 年6 月, 对10 例伸直位骨性强直膝患者施行全膝关节置换术。男4 例, 女6 例;年龄29~63岁, 平均49 岁。双膝关节置换2 例, 单膝关节置换8 例。强直性脊柱炎3 例, 类风湿关节炎2 例, 血友病性关节炎1 例, 创伤性关节炎3 例, 化脓性关节炎1 例。膝关节均处于伸直位骨性强直畸形, 活动度0°, 美国特种外科医院(the Hospital for Special Surgery, HSS)膝关节评分(32.5±10.26)分。结果 全部病例随访3~10 年, 平均5.3 年。末次随访时HSS 膝关节评分提高至(87.75±6.45)分, 与术前比较差异有统计学意义(t=18.668, P=0.000)。关节活动度提高至97.08°±11.57°, 与术前比较差异有统计学意义(t=29.063, P=0.000)。术后发生皮肤坏死2 例、下肢深静脉栓塞1 例、假体周围骨折1 例、假体深部感染翻修1 例。术后X线复查未见假体松动。结论 采用髌旁内侧入路、股四头肌切开、二次截骨加软组织松解的全膝关节置换术可矫正伸直位骨性强直膝关节畸形, 配合正确的康复锻炼, 患者的膝关节功能和生活质量能得到明显提高。     

强直性脊柱炎非骨水泥型全髋关节置换术后中期随访

目的:观察强直性脊柱炎非骨水泥型全髋关节置换术后中期的随访结果。方法:对37例(52髋)强直性脊柱炎非骨水泥型全髋关节置换术后患者进行了24～172个月,平均69个月的随访。临床随访根据Harris的评分方法进行评分,X线随访根据Gruen等和DeLee and Charnley分区法分别进行股骨柄和臼杯X线分析,根据Brooker等0～4级分级法进行异位骨化分级。结果:患者髋关节屈伸、收展、内外旋总活动度由术前的平均27°提高到术后平均152°。术后无脱位、感染等并发症发生。Harris评分术前平均为32(8～64)分,术后平均为82(64～96)分,其中优38髋,良8髋,可6髋,优良率88.5％。X线片分析未见假体松动,11髋(21.2％)发生异位骨化。结论:人工全髋关节置换术治疗强直性脊柱炎髋关节病变,中期可取得满意的临床效果。     

Combined anterior and posterior surgery for treatment of cervical fracture-dislocation in patients with ankylosing spondylitis

To discuss the pathological characteristics of cervical spinal fracture complicating ankylosing spondyli-tis-(AS) and the effect of combined anterior and posterior operation. Methods: Eighteen AS patients with traumatic cervical fracture-dislocation were treated operatively from January 2000 to January 2006. The symptom duration of AS was 14.5 years on average. Three cases had undergone osteotomy in lumbar spine. There were 4 cases of Grade A, 3 cases of Grade B, 9 cases of Grade C and 2 cases of Grade D accord-ing to Frankel's score. There were 15 cases of Grade Ⅲ dislocation and 3 cases of Grade Ⅱ. All patients underwent surgical procedures by combined anterior and posterior approach.Results: There were 4 anterior-posterior procedures, 8 anterior-posterior-anterior procedures and 6 posterior-an-terior procedures. Seven patients had one stage operation and 11 cases underwent two stage surgeries. There was certain extent of neorological improvement in 14 incomplete paraplegic patients, but no improvement in 4 complete paraplegic patients. The follow-up period was 21.2 months on average and the time for bone fusion was 3.6 months. There were 4 complications during operation and a long-term complication in follow-up. Conclusions: The study suggests that anterior com-bined with posterior approach makes the spine stable and relieves the pressure immediately. It is a reasonable surgical strategy for treatment of cervical spinal fracture-dislocation with AS.     

全髋关节置换术治疗强直性脊柱炎致髋关节强直的疗效及康复锻炼的意义

目的 探讨全髋关节置换术治疗强直性脊柱炎致髋关节骨性强直的疗效及术后康复锻炼的意义.方法 1998年10月至2007年5月,对28例(46髋)强直性脊柱炎致髋关节骨性强直患者施行全髋关节置换术,男27例,女1例;年龄22～58岁,平均38.9岁;病程5～35年,平均17年2个月;髋关节屈曲强直7例(14髋),伸直强直21例(32髋).采用髋关节后外侧切口34髋,改良前外侧与外侧联合切口12髋;其中应用全生物型假体40髋,混合型假体6髋.术后24 h即开始进行系统性康复锻炼.对手术前、后患者Harris评分、VAS评分、髋关节总活动度及患者整体功能改善情况进行比较.结果 所有患者均获得随访,随访时间10～64个月,平均38.2个月,随访期间未发生坐骨神经或股神经麻痹、皮肤压疮、肺部感染、关节松动等并发症.1例患者术后2周出现髋关节脱位,经闭合复位治愈.8髋出现异位骨化,其中Brooker Ⅰ级6髋,Ⅱ级2髋.7例髋关节屈曲强直患者,屈曲角度由术前34.3°±16.3°改善为术后4.2°±3.3±.Harris评分由术前平均(28.3±10.3)分提高至术后平均(82.7±7.6)分.VAS评分:术前(3.5±1.4)分,术后(3.8±1.8)分.髋关节总活动度由术前平均15.6°±9.3°改善至术后133.7°±17.6°.术前28例患者生活均不能自理;术后1年,除3例患者行走时仍需借用单拐、生活需他人帮助外,其余25例患者生活均可自理,并可从事家务或轻体力劳动.结论 全髋关节置换术是治疗强直性脊柱炎晚期严重髋关节病变的一种有效方法,早期系统康复锻炼有助于关节功能的恢复.     

强直性脊柱炎合并胸腰椎骨折的临床分析

目的：总结强直性脊柱炎合并胸腰椎骨折的临床特点,避免诊断延误。方法：回顾性分析自2005年4月至2007年6月收治的5例强直性脊柱炎合并胸腰椎骨折病例,男4例,女1例;年龄26～72岁,平均44．8岁。分析内容包括：病史、骨性融合椎体数、骨折特点、风湿活动状态等。结果：强直性脊柱炎患病史平均22．6年。骨性融合椎体数平均18．2节。1例为自驾车交通事故,1例有扭伤史,3例无外伤史为应力骨折。2例合并椎体骨折：骨折线分别经T6、T7或L1椎体;3例合并椎间隙骨折：2例骨折线经L1,2椎间隙,1例骨折线经L2,3椎间隙。未见压缩骨折及脊髓或马尾神经损伤。4例血沉及C-反应蛋白等急性炎症指标与疼痛程度不相称。非甾体抗炎药均无明显止痛效果。在外院均误诊为强直性脊柱炎“复发”,平均延误1．51个月。结论：①骨折好发于强直性脊柱炎中晚期胸腰椎广泛骨性融合者;②好发于下部胸椎和上部腰椎,且多为应力骨折;③可以为合并椎体骨折或椎间隙骨折;④易误认为强直性脊柱炎“复发”而发生误诊、漏诊;⑤中晚期强直性脊柱炎患者腰背痛突然加剧,疼痛程度与急性炎症指标不相称,非甾体抗炎药甚至皮质类固醇疗效欠佳,应考虑到胸腰椎骨折可能。     

全髋关节置换术治疗强直性脊柱炎致髋关节强直的疗效及康复锻炼的意义

Objective To investigate the clinical effects of total hip arthroplasty (THA) for bony ankylosis in patients with ankylosing spondylitis and the significance of postoperative rehabilitation. Meth-ods From October 1998 to May 2007, 28 patients (46 hips) suffered from ankylosing spondylitis with hip bony ankylosis underwent THA. There were 27 males, 1 female, with the mean age of 38.9 years (range 22 to 58 years). Posterior lateral hip incision was performed in 34 hips, and modified anterior lateral combined with lateral hip incision in 12 hips. Forty hips applied cementless THA and 6 hips applied mixed THA. Har-ris scores, VAS scores and total hip range of motion in all patients were compared pre-and postoperatively to evaluate the clinical effects. Results All patients were followed up from 10 months to 64 months, with the mean time of 38.2 months. No paralysis, decubitus, and lung infection were found. Joint dislocation hap-pened in 1 case 2 weeks after operation, and was cured with close reduction. Heterotopic bone formation with Brooker Ⅰ was found in 6 hips and Brooker Ⅱ in 2 hips. Harris score increased from 28.3±10.3 preop-eratively to 82.7±7.6 postoperatively. VAS score changed from 3.5±1.4 preoperatively to 3.8±1.8 postopera-tively, and no significance was found. The hip movement range increased from 15.6°±9.3° preoperatively to 133.7°±17.6° postoperatively. Bony ankylosis in all patients disappeared and the hip function improved sig-nificantly after operation. Conclusion THA is the optimal method to treat the ankylosing spondylitis with hip bony ankylosis. Early rehabilitation is necessary to improve hip function.     

强直性脊柱炎的早期临床特征研究

目的探讨强直性脊柱炎的早期临床特征,为其早期初步诊断提供依据。方法对51例确诊为强直性脊柱炎早期患者的临床症状和体征按性别分别进行统计学分析。结果本组资料中有52％男性有休息痛和晨僵,女性为53．84％和46．15％;活动后疼痛缓解男女分别为80％和96．15％。骶髂关节检查的阳性率为80％,指地距离大于10cm者,男女分别为64％和42％,Schober试验阳性者男女分别为20％和3．84％;胸廓活动度小于5cm者,男性8％,女性3．84％。血沉和C反应蛋白的阳性率分别为21．57％和47．06％。结论晨僵和休息后疼痛加重以及活动后缓解是强直性脊柱炎早期重要的临床症状。骶髂关节检查和指地距离具有较高的阳性率。血沉和C反应蛋白有辅助诊断意义。     

强直性脊柱炎异位骨化机制研究进展

强直性脊柱炎是一种发病机制不明的慢性炎性脊柱关节病,主要侵犯骶髂关节、脊柱关节等,严重者可发生脊柱、关节的畸形和强直。临床表现为炎性腰背痛,夜间及休息后加重,活动后减轻。该病发病率男性高于女性,且男性主要表现为中轴关节改变,而女性大多首发于外周关节。目前生物制剂肿瘤坏死因子抑制剂通过控制炎症,从而改善病情发展,被认为是最前沿的药物,但其在阻断新骨形成方面尚未经循证医学证实有效。本文着眼于新骨形成角度,从基因及细胞因子层面探讨强直性脊柱炎的病因。目前相关研究发现LRP5、ANTXR2、PTGER4、ANKH等基因的异常表达激活骨形成信号通路,在多种细胞因子及相关蛋白(如Noggin蛋白、DKK、转化生长因子-β、骨形态发生蛋白、碳酸酐酶1等)直接或间接作用下将骨形成信号传至靶细胞表面,进而传入细胞核,改变靶细胞正常生理代谢过程,导致过度骨形成,造成异位骨化。近年的临床影像学病例分析也提示了骨赘形成的分布特点,进而推断机械应力是促进其形成的外部因素。本文对强直性脊柱炎异位骨化方面进行了文献综述,以期待能进一步加深对本病的认识,为临床治疗研究提供新的思路。     

Combined anterior and posterior surgery for treatment of cervical fracture-dislocation in patients with ankylosing spondylitis

To discuss the pathological characteristics of cervical spinal fracture complicating ankylosing spondyli-tis-(AS) and the effect of combined anterior and posterior operation. Methods: Eighteen AS patients with traumatic cervical fracture-dislocation were treated operatively from January 2000 to January 2006. The symptom duration of AS was 14.5 years on average. Three cases had undergone osteotomy in lumbar spine. There were 4 cases of Grade A, 3 cases of Grade B, 9 cases of Grade C and 2 cases of Grade D accord-ing to Frankel's score. There were 15 cases of Grade Ⅲ dislocation and 3 cases of Grade Ⅱ. All patients underwent surgical procedures by combined anterior and posterior approach.Results: There were 4 anterior-posterior procedures, 8 anterior-posterior-anterior procedures and 6 posterior-an-terior procedures. Seven patients had one stage operation and 11 cases underwent two stage surgeries. There was certain extent of neorological improvement in 14 incomplete paraplegic patients, but no improvement in 4 complete paraplegic patients. The follow-up period was 21.2 months on average and the time for bone fusion was 3.6 months. There were 4 complications during operation and a long-term complication in follow-up. Conclusions: The study suggests that anterior com-bined with posterior approach makes the spine stable and relieves the pressure immediately. It is a reasonable surgical strategy for treatment of cervical spinal fracture-dislocation with AS.