脊柱侧凸矫形预测方法评价

背景：传统评价脊柱侧凸的方法有多种，例如仰卧位像、牵引像、俯卧位推压像以及侧方弯曲像等。近年来，支点弯曲像已成为术前评价脊柱柔韧度的新方法。目的：比较站立位弯曲像、悬吊牵引像和支点弯曲像对脊柱侧凸矫形的预测作用与价值。设计：随机对照研究。地点和对象：研究在北京协和医院骨科完成。对象为该科收治的胸椎侧凸畸形患者27例，男10例，女17例；平均年龄15．4岁。干预：全部病例术前行脊柱正侧位、站立位弯曲像、悬吊牵引像和支点弯曲像检查，采用后路脊柱侧凸矫形植骨融合术，第3代节段性内固定系统固定。主要观察指标：脊柱正侧位、站立位弯曲像、悬吊牵引像和支点弯曲像以及术后正位像的Cobb角。结果：①术后平均Cobb角为31&;#176;，较术前胸弯(平均Cobb角为61&;#176;)明显改善(t=1．706，P&;lt;0．01)，平均矫正率为51．6％。②3种检查方法均与术后胸弯Cobb角呈正相关(P&;lt;0．01)。③Fulcrum像与术后Cobb角差异无显著性意义(P&;gt;0．05)，其他两种方法与术后Cobb角差异有非常显著性意义(P&;lt;0．01)。结论：①Fulcrum像可以用于评价胸弯的柔韧度，其效果优于站立位Bending像和悬吊牵引像。②分析脊柱侧凸畸形及预测脊柱侧凸的矫形需联合应用3种方法。     

不同摄片方法预测青少年特发性脊柱侧凸三维矫形融合术效果的比较

背景:站立侧屈、仰卧侧屈、侧方按压、俯卧推压和牵引下摄X射线片对预测哈氏法和卢氏法手术的矫正效果确实有效,但均不能更好地预测目前应用的三维椎弓根钉棒矫形系统的矫正效果。目的:评估术前支点弯曲位、重力悬吊牵引位和仰卧侧屈位X射线平片在预测青少年特发性脊柱侧凸三维矫形融合术效果的价值。设计:对比观察。单位:解放军第二一一医院骨科(全军骨科中心)。对象:选择2003-01/2005-12解放军第二一一医院骨科就诊的63例青少年特发性脊柱侧凸患者,男18例,女45例,年龄10￣21岁。均经临床检查及X射线平片诊断为青少年特发性脊柱侧凸;Cobb角≥40°;患者均对检测项目知情同意。方法:术前对63例青少年特发性脊柱侧凸患者的79个结构性侧凸摄站立位全脊柱正侧位片、支点弯曲位片、重力悬吊牵引位片和仰卧侧屈位片,术后1周时摄站立位全脊柱正侧位片。主要观察指标:青少年特发性脊柱侧凸术前支点弯曲位Cobb角与术后实际Cobb角。结果:患者63例均进入结果分析。术前支点弯曲位Cobb角与术后站立位比较,差异无显著性意义(P>0.05);而术前重力悬吊牵引位和仰卧侧屈位Cobb角与术后站立位比较,差异有显著性意义(P<0.05)。结论:支点弯曲位X射线平片比重力悬吊牵引位和仰卧侧屈位X射线平片能更准确地预测术后矫正效果,而重力悬吊牵引位与仰卧侧屈位摄片的预测结果相似。     

青少年特发性脊柱侧凸术前应用滑动式牵引床牵引的效果评价

[目的]评价青少年特发性脊柱侧凸病人术前运用自行设计的滑动式牵引床进行牵引的临床效果。[方法]采取自身对照研究方法,选择22例脊柱侧凸病人,术前采用自行设计研制的滑动式牵引床进行牵引,比较牵引前后脊柱柔韧度相关指标的变化以及与术后正位Cobb角相关性。[结果]术前牵引前后脊柱柔韧度相关指标改变显著（P〈0.01） 病人术后正位Cobb角与个体弯曲数目、牵引后的B位Cobb角及牵引前BCR有回归关系（P〈0.05） 主胸段术后正位Cobb角改变与牵引前后正位Cobb角改变、B位Cobb角改变及BCR改变具有回...     

青少年特发性脊柱侧凸术前应用滑动式牵引床牵引的效果评价

[目的]评价青少年特发性脊柱侧凸病人术前运用自行设计的滑动式牵引床进行牵引的临床效果.[方法] 采取自身对照研究方法,选择22例脊柱侧凸病人,术前采用自行设计研制的滑动式牵引床进行牵引,比较牵引前后脊柱柔韧度相关指标的变化以及与术后正位Cobb角相关性.[结果]术前牵引前后脊柱柔韧度相关指标改变显著(P<0.01);病人术后正位Cobb角与个体弯曲数目、牵引后的B位Cobb角及牵引前BCR有回归关系(P<0.05);主胸段术后正位Cobb角改变与牵引前后正位Cobb角改变、B位Cobb角改变及BCR改变具有回归关系(P<0.05).[结论]青少年特发性脊柱侧凸病人术前运用自行设计的滑动式牵引床进行牵引,可明显改善治疗效果.     

脊柱侧凸患者术前采用脊柱侧凸牵引床牵引的效果评价及护理

目的评价脊柱侧凸患者术前采用自行设计牵引床牵引的效果、舒适度、术后并发症,并提出牵引过程的护理重点。方法统计分析22例脊桂侧凸患者牵引前后脊柱柔韧度相关指标的变化及与术后正位Cobb角的相关性,牵引舒适度情况、牵引相关并发症以及术后并发症。结果所有患者均完成牵引牵引前后脊柱柔韧度改变明显（P〈O．05）,术后正位Cobb角改变值与牵引前后各体位Cobb角度差值有关系（P〈O．05）,牵引过程及术后相关并发症少。结论脊柱侧凸患者术前采用自行设计牵引床进行牵引舒适度高、效果显著、牵引相关并发症少,护理人员相关工作量减少,但牵引床占用空间比较大,床架结构有待进一步改进。     

脊柱三维矫形内固定系统植入矫正马凡综合征患者脊柱侧凸的效应

背景:既往文献报道马凡综合征患者脊柱侧凸的矫正有着较高的并发症和矫正率的丢失;运用脊柱三维矫形内固定系统治疗马凡综合征患者脊柱侧凸的报道较少。目的:观察CD、TSRH等第3代脊柱矫形内固定系统对马凡综合征患者脊柱侧凸的矫正效应。设计:回顾性分析。单位:合肥市第一人民医院骨二科。对象:于1997-09/2003-07选择资料完整的马凡综合征脊柱侧凸患者10例,行后路CD及TSRH器械矫形内固定,同时予以自体骨移植融合手术。双主弯型8例,胸椎侧弯2例,胸椎侧弯方向均为右侧弯。胸椎后凸3例,胸腰段后凸2例。方法:在术前、术后1周及随访时均拍摄站立位的正侧位X射线片。术前拍摄左右侧曲位及悬吊位X射线片,以评估侧凸的柔韧性。侧凸角度大小的测量方法采用Cobb法,同时记录侧凸的稳定椎及中立椎。10例患者均予以后路手术。2例使用CD系统矫形内固定,另外8例使用TSRH系统。植骨材料来源于自体髂后上棘。术后予以支具保护3个月。主要观察指标:术后脊柱侧凸的矫正率及并发症情况。结果:经过12～60个月的随访,8例双主弯型患者胸弯的矫正率为48%,随访矫正率丢失为20%;腰弯的矫正率为56%,随访矫正率丢失为16%;2例单胸弯型患者的矫正率为61%,随访矫正率丢失为8%。所有患者躯干平衡得到改善。无神经并发症的发生。2例出现交界性腰椎后凸。1例切口延迟愈合。结论:使用脊柱三维矫形内固定系统治疗马凡综合征患者脊柱侧凸,可以达到满意疗效。术前对马凡综合征患者的心肺情况进行评估,术中适当延长融合节段,避免过度矫正,减少软组织损伤,更加重视植骨融合是疗效满意的关键。     

可移动式悬吊牵引轮椅在脊柱侧凸患者中的应用

目的 探讨可移动式悬吊牵引轮椅在脊柱侧凸患者术前牵引治疗中的应用效果。方法 选取2017年9月-2018年9月收治的84例脊柱侧凸患者为研究对象,采用随机数字表法将其分为对照组和观察组,各42例。对照组采用常规床尾悬吊牵引法,观察组采用我科自制的可移动式悬吊牵引轮椅(专利号:ZL201820201375.8)进行悬吊牵引,比较2组悬吊局部皮肤异常情况、牵引耐受时间、治疗依从性、牵引治疗后Cobb角改善度数。 结果 干预7d后,观察组发生皮肤异常的例数明显少于对照组(χ²=24.554,P＜0.001),牵引耐受时间明显长于对照组(t=8.914,P＜0.001);遵医嘱完成全程牵引治疗的人数明显多于对照组(χ²=39.790,P＜0.001);悬吊位Cobb角改善度数大于对照组(t=3.282,P=0.027)。结论 可移动式悬吊牵引轮椅应用于脊柱侧凸患者术前牵引,可减少牵引对患者皮肤的损害,提高了患者治疗依从性,对悬吊位Cobb角起到显著的改善作用,值得临床推广应用。     

内固定物置入分期矫形治疗重度僵硬脊柱侧凸

背景：重度脊柱侧凸是目前临床治疗的难点,目前研究表明分期矫形治疗是一种安全有效的治疗手段。目的：分析分期矫形在治疗重度脊柱侧弯中的疗效。方法：对10例重度僵硬的脊柱侧凸分期矫形治疗进行回顾性分析,平均年龄12岁。冠状面Cobb角110°-180°,平均140°,矢状位后凸Cobb角50°-100°,平均75°,均采用1期前路松解,2期行Halo-plevic环牵引,3期后路截骨矫形内固定物治疗。结果与结论：所有病例均顺利完成手术治疗,无严重并发症发生,1期前路松解及2期牵引治疗术后冠状位Cobb角平均90°,矫正率为35.7%,矢状位Cobb角50°,矫正率为33.3%;3期截骨矫形后冠状位Cobb角平均40°,矫正率为71.4%,矢状位Cobb角35°,矫正率为53.3%。结果说明对于重度僵硬脊柱侧凸畸形,分期矫形治疗是有效安全的治疗手段。     

热塑矫形支具治疗青少年特发性脊柱侧凸：疗效及材料和宿主反应随访

目的:回顾性分析支具矫正的青少年特发性脊柱侧凸适应证及临床效果。方法:对2003-01/2005-12在解放军第211医院骨科收治的106例未做过治疗的生长发育期青少年特发性脊柱侧凸患者,给予热塑矫形支具治疗。男21例,女85例;年龄8～19岁,平均(13.1±3.6)岁。单胸凸49例,双胸凸8例,胸和腰双凸37例,胸腰段或腰凸12例。原发Cobb角20°～42°,平均(±6.4)°。Risser征0度51例,Ⅰ度33例,Ⅱ度19例,Ⅲ度3例。支点29.5弯曲位时的矫正率≥50%的柔软性侧凸57例,<50%的僵硬性侧凸49例。每3～6个月复查1次,摄站立位全脊柱正侧位X射线片。结果:①全部病例随访24～72个月,平均36个月,79例(74.5%)治疗有效(原发性侧凸Cobb角增加≤5°,或是胸腰双主弯中继发侧凸超过原发侧凸≤5°),27例(25.5%)出现脊柱侧凸进展,治疗无效。②柔软性侧凸57例,支具矫正有效是48例;僵硬性侧凸49例,有效是37例,柔软性侧凸的矫正效果优于僵硬性侧凸。③脊柱侧凸Cobb角在20°°者63例,有效是54例,～2930～40°者43例,有效是25例,Cobb角20°°组的矫正效果优于Cobb角30°°组。③未出现特殊的材料和宿主的明显～29～40不良反应和负性事件,但腰、髋部骨密度明显下降。结论:①热塑矫形支具矫正青少年特发性脊柱侧凸能够取得良好疗效。②骨骼正处于生长发育期者,侧凸柔软性好者,Cobb角较小者,矫正效果好。③支点弯曲位时的矫正率可以预测支具矫正效果。④随访中发现应用支具后患者腰、髋部骨密度明显下降。     

先天性脊柱侧后凸畸形患者采用半椎体切除治疗临床效果观察

我院60例先天性脊柱侧后凸畸形采用半椎体切除术治疗,观察患者手术前、后Cobb角及矫形率变化等情况。结果经治疗后,在手术后即刻、手术后末次随访时,患者冠状面局部侧凸Cobb角、冠状面整体侧弯Cobb角、头侧代偿弯Cobb角、尾侧代偿弯Cobb角、顶椎偏移、躯干偏移、SVA、矢状面后凸Cobb角较手术前明显减少,经治疗后患者后、侧凸均明显好转且术后未发生明显并发症。应用后路半椎体切除治疗先天性脊柱侧后凸畸形患者疗效显著且安全。     

Rasterstereographic back shape analysis in idiopathic scoliosis after anterior correction and fusion

OBJECTIVE: To determine the accuracy of rasterstereographic three-dimensional back surface analysis and reconstruction of the spine in cases of severe idiopathic scoliosis treated by anterior correction and fusion. DESIGN: Comparison of digitized radiographic curves and rasterstereographic curves by best fit superimposition and calculation of root mean square differences as parameters of similarity. BACKGROUND: Rasterstereography has been proven to be accurate in scoliosis up to 50 degrees Cobb angle. Since 1989 the device is in clinical routine use for non-operatively treated patients and reduces the need for otherwise indispensable radiographs significantly. METHODS: Fifty two patients with severe idiopathic scoliosis with Cobb angles up to 88 degrees were examined rasterstereographically and radiographically. Forty eight pre-operative anterior-posterior radiographs and 101 post-operative anterior-posterior radiographs were digitized. Radiographic and rasterstereographic curves were compared and the root mean square differences were calculated as parameters of precision of rasterstereographic reconstruction. RESULTS: Accuracy of rasterstereography in idiopathic scoliosis with Cobb angles between 50 degrees and 88 degrees is satisfactory. The root mean square difference of the radiographic and rasterstereographic curves was 6.4 mm for lateral deviation and 4.5 degrees for vertebral rotation. After anterior scoliosis surgery the precision of the device is good. The root mean square difference for lateral deviation was 3.4 mm and 3.2 degrees for rotation. Considering both groups an average root mean square of 4.7 mm and 3.7 degrees was calculated. CONCLUSIONS: Accuracy in severe scoliosis up to 88 degrees Cobb angle was satisfactory. The results of this first evaluation of surgically treated severe scoliosis showed a good accuracy after anterior surgery. The system can be used for post-operative follow up examinations and may reduce the number of X-rays considerably. In contrast to radiography, CT or MRI rasterstereography provides an objective quantification and documentation of the post-operative cosmetic improvement of the back shape in standing posture. RELEVANCE STATEMENT: Based on the findings of this study rasterstereography in future enables both objective quantification of cosmetic improvement and significant reduction of X-rays in idiopathic scoliosis with Cobb angles higher than 50 degrees before and after anterior surgical correction and fusion.     

Asymmetric biomechanical characteristics of the paravertebral muscle in adolescent idiopathic scoliosis

BackgroundWe sought to assess the biomechanical properties of the paravertebral muscles in adolescent idiopathic scoliosis patients with Lenke Type 1, 2, or 3 (Lenke 1-3) curves.MethodsThe MyotonPro® and shear wave elasticity imaging system were used to assess the biomechanical features of the thoracic paravertebral muscles on concave and convex side in adolescent idiopathic scoliosis patients with Lenke 1-3 curves. The Cobb angle of the main curve was measured using the anteroposterior whole spine radiograph in the standing position.FindingsA total of 40 adolescent idiopathic scoliosis patients with a mean Cobb angle of 66.49° (SD 32.8°) were included in this study. Muscle tone, stiffness and Deborah number on the concave side was significantly greater than that on the convex side. Relaxation time was significantly longer on the convex side than on the concave side. No statistically significant difference in muscle elasticity was observed between the concave side and the convex side (P > 0.05). Pearson correlation analysis demonstrated that stiffness on the concave side was moderately positively correlated with the Cobb angle (P < 0.05, r = 0.582); the Deborah number on both sides and the relaxation time on the concave side showed a moderate negative correlation with the Cobb angle (P < 0.05, r = −0.632; r = −0.432; r = −0.611).InterpretationConcave paravertebral muscle tone and stiffness were greater than those on convex side in adolescent idiopathic scoliosis patients. The asymmetric biomechanical characteristics of paravertebral muscles are closely related to the severity of scoliosis.     

Radiographic pseudoscoliosis in healthy male subjects following voluntary lateral translation (side glide) of the thoracic spine

OBJECTIVE: To determine projected Cobb angles associated with trunk list (side shift) posture, hypothesizing that the side shift "scoliotic" curvature would be similar to true scoliotic curvature in the early stages. DESIGN: Anteroposterior (AP) radiographs of volunteers in neutral, in left, and right lateral translations of the thoracic cage (trunk list) were digitized. SETTING: Computer laboratory. PARTICIPANTS: Fifteen healthy male volunteers. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Cobb and Risser-Ferguson angles determined from digitizing vertebral body corners from T12 to L5 on 51 AP lumbar radiographs. RESULTS: Using the horizontal displacement of T12 from S1, subjects could translate an average of 54.0 mm to the left and 52.5 mm to the right. The average digitized Cobb T12-L5 angle produced for the 30 translated postures was 16 degrees. Angles ranged from 2.6 degrees to 27.0 degrees. Risser-Ferguson angles averaged 10 degrees between T12 and L5. Statistical correlations were found between Cobb L1-5 and translation to the left (P=.015), Cobb T12-L5 and translation to the right (P=.024), Risser-Ferguson angle and translation to the left (P=.021), and the lumbosacral angle to the right and trunk translation to the right (P=.027). CONCLUSIONS: During lateral translation of the thorax (trunk list), coupled lumbar lateral flexion resulted in the appearance of a pseudoscoliosis on AP radiographs. For this trunk list posture, Cobb angles are considerable (16 degrees ) and increase as the magnitude of trunk translation increases. Differentiating true structural scoliosis from this pseudoscoliosis would be clinically important. The small coupled axial rotation in trunk list is in contrast to the considerable degree of axial rotation observed in structural idiopathic scoliosis.     

Long-range outcome in idiopathic scoliosis correction with Cotrel-Dubousset instrumentation

Background. The purpose of this study is to evaluate outcome in idiopathic scoliosis treated surgically with Cotrel-Dubousset instrumentation. Material and methods. We analyzed the results of surgical treatment of 147 patients with idiopathic scoliosis classified according to King. The mean age of the patients at surgery was 15 years (range 12-25 years), and the mean follow-up was 6.3 years (range 3-12 years). Full-length standing preoperative, postoperative and last follow-up radiographs were studied. Radiographic analysis included the Cobb angle, Risser stage, apical vertebral rotation according to Perdriolle, radiological compensation, T2-T12 kyphosis and L1-S1 lordosis. Results. The greatest scoliosis correction was found in the frontal plane (60% in King IV), much lower in the sagittal. The mean loss of correction was 6.5% thoracic and 10.4% lumbar. In lordoscoliosis, postoperative kyphosis was below the normal range. Apical vertebral derotation ranged from 1 to 5 degrees. Derotation in the thoracic curve correlated with increased rotation in the lumbar curve. Decompensation to the left occurred postoperatively in the majority of patients. At last follow-up, the number of decompensated patients and mean decompensation was smaller. No back pain was found in the majority of patients (78.5%), and they judged the final result of treatment to be excellent (77.5%) or good (20.4%). Complications occurred in 10 patients (6.8%), early infection in 2 cases and late in 3. Conclusions. The greatest correction of scoliosis was found in the frontal plane, less in the sagittal. Small correction of the apical vertebral rotation of the main curve correlated with increased rotation in the secondary curve. The final follow-up decompensation was less than postoperatively.     

Rasterstereographic back shape analysis in idiopathic scoliosis after posterior correction and fusion

Objective. To determine the accuracy of rasterstereographic three-dimensional back surface analysis and reconstruction of the spine in idiopathic scoliosis treated by posterior correction and fusion.

Design. Prospective imaging study of 25 patients with idiopathic scoliosis who underwent posterior correction and fusion and were followed for one year.

Background. In an earlier study published in this journal rasterstereography has proved to be an accurate imaging modality for quantifying the changes in the three-dimensional shape of the spine and posterior rib cage after anterior correction and fusion. Goal of the present study was to determine the accuracy for the more common posterior correction and fusion with attention paid to the presence of the posterior implants and scarring.

Methods. Twenty-five patients with idiopathic scoliosis with maximum Cobb angles of 78° were examined by rasterstereography and radiography. Seventy-one anterior–posterior radiographs were digitised. Twenty-four were preoperative and 47 postoperative radiographs. Rasterstereographic and radiographic curves were compared by best-fit superimposition. Root-mean-square differences were calculated as parameters of accuracy.

Results. The accuracy of rasterstereography in severe idiopathic scoliosis with Cobb angles between 48° and 78° was satisfactory with root-mean-square differences of 5.8 mm for the lateral deviation and 4.8° for vertebral rotation. Following posterior correction the accuracy was good. The root-mean-square difference was 4.5 mm for the lateral deviation and 4.3° for vertebral rotation.

Conclusion. The accuracy obtained for posteriorly-operated scolioses between 50° and 80° was similar to the findings for scolioses operated via anterior approach, as well as those with curves up to 50° Cobb angle. Therefore rasterstereography can be used postoperatively to reduce the number of radiographs and radiation exposure. Additionally, the method provides an objective quantification of the postoperative improvement in the cosmesis of the back shape.Relevance

In the treatment of severe idiopathic scoliosis rasterstereography provides both a considerable reduction of X-rays and an objective documentation of the cosmesis before after scoliosis surgery.     

青少年特发性脊柱侧凸植入物内固定后冠状面失平衡及模型构建

背景：青少年特发性脊柱侧凸是目前临床上影响青少年身体外观的常见病,但通过Logistic回归方程来分析固定后冠状面失平衡目前尚缺乏报道。目的：探讨Lenke Ⅱ型青少年特发性脊柱侧凸患者固定后冠状面失平衡的原因。方法：对新疆医科大学第一附属医院脊柱外科2001年1月至2012年11月收治的141例Lenke Ⅱ型青少年特发性脊柱侧凸患者进行多个变量的单因素比较和多因素Logistic回归分析,筛选导致青少年特发性脊柱侧凸患者固定后发生冠状面失平衡的危险因素,并构建预测模型。结果与结论：141例患者中有30例出现固定后冠状面失平衡,占全部受试患者的21．28％。对于LenkeII型特发性脊柱侧弯畸形患者,固定前顶椎3—4级Nash-More椎体旋转、4—5级Risser征、主弯矫正率,柔韧性〉1、下胸弯Cobb角〉70。等易引起固定后冠状面失平衡。多因素Logistic回归分析提示椎体旋转、Risser征、主弯矫正率,柔韧性、下胸弯Cobb角等是LenkeII型青少年特发性脊柱侧凸患者固定后发生冠状面失平衡的独立危险因素。预测模型为Y=1／[1＋exp（-1．182X1＋1．228X2＋1．671X3-0．71X4＋0．407）]。     

重度特发性胸腰段脊柱侧凸患者应用前后路手术联合内固定的疗效及预后

目的探讨重度特发性胸腰段脊柱侧凸患者应用前后路手术联合内固定的疗效及预后。方法选择60例重度特发性胸腰段脊柱侧凸患者,随机分为2组。前后路组患者给予前后路联合内固定术,后路组患者给予后路联合内固定术。观察2组患者治疗情况、术前术后指标变化及随访情况。结果 2组患者手术时间、出血量、住院时间比较有显著差异(P0.05);2组患者融合节段无显著差异(P0.05)。2组术后主弯Cobb角、后凸角及躯干偏移均有显著改善(P0.05)。2组末次随访主弯Cobb角丢失度数、后凸丢失度数、主弯Cobb角矫正率、后凸矫正率无显著差异(P0.05)。结论前后路联合内固定术与后路联合内固定术对重度特发性胸腰段脊柱侧凸患者治疗效果相当,后路联合内固定术手术时间与住院时间更短,但出血量更大,风险更高。     

Clinical and radiological assessment of vertebral rotation in idiopathic scoliosis

Background. Idiopathic scoliosis is a three-dimensional deformity of the spine and the trunk. The principle clinical method of estimation of the rotational deformity in the transversal plane of the body is the measurement of the angle of trunk rotation with a scoliometer. The aim of the study was to investigate the relationship between the angle of trunk rotation and the two radiological parameters: the Perdriolle angle of axial rotation and the Cobb angle of spinal curvature. Material and Methods. 50 children with single or double scoliosis (total of 65 curves) were examined clinically and radiologically. For each patient the angle of trunk rotation was measured with the Bunnell scoliometer, the Cobb angle and the Perdriolle angle were calculated at the a-p standing radiograph. Results. Strong positive linear correlation was found among the three parameters in thoracic curves. The correlation was less important in lumbar curves. Thoracic curves revealed superior values of the angle of trunk rotation and inferior values of the angle of Perdriolle than the lumbar curves matched for Cobb angle. Conclusions. Clinical measurement of the angle of trunk rotation with the use of a scoliometer can predict the value of the angle of the curve in thoracic scoliosis. This might replace a certain amount of radiological examination and reduce the patients' irradiation.