全椎弓根螺钉与钩钉联合系统对脊柱侧凸的矫形效果比较

目的比较全椎弓根螺钉与钩钉联合系统对特发性脊柱侧凸的后路矫形效果。方法对40例特发性脊柱侧凸患者进行回顾性对照研究,其中全节段椎弓根螺钉组20例,钩钉联合器械组20例。对两组的手术效果、手术时间和失血量等进行对照分析。结果平均冠状面矫形率：全节段椎弓根螺钉组82．4％,钩钉联合器械组71．8％（P〈0．01）;术后1—3年平均冠状面矫形率：全节段椎弓根螺钉组77．O％,钩钉联合器械组62．5％（P〈0．01）;平均顶椎旋转矫正率：全节段椎弓根螺钉组63％,钩钉联合器械组32％（P〈0．01）。而矢状面矫形效果、下固定椎倾斜度改善率、躯干偏移、手术时间、失血量方面,两组无明显差别（P〉0．05）。所有病例均未出现脊髓、神经根损伤等严重并发症。结论全椎弓根螺钉较钩钉联合系统具有更好的矫形效果,胸椎椎弓根螺钉置入安全可靠。     

内固定方式对青少年特发性脊柱侧凸选择性胸椎融合矢状面重建的影响

目的 探讨胸弯型青少年特发性脊柱侧凸患者行后路选择性胸椎融合术时采用不同内固定方式对胸椎矢状面形态及远端腰椎代偿模式的影响.方法 行胸弯后路矫形内同定术且有2年以上(2～3年)完整随访资料的lenke 1、2型青少年特发性脊柱侧凸患者51例,按内固定方式分为A组(全钩组)、B组(钩钉混合组)和C组(全钉组).测量术前及术后随访的胸弯Cobb角、腰弯Cobb角、胸椎后凸角、腰椎前凸角、远端交界性后凸、胸腰段交界性后凸及C7铅垂线偏离S1后上缘的距离.结果 三组患者主弯矫正率均大于60%,继发弯也获得较满意的自发性矫正.三组患者术前及随访中腰椎前凸角、C7铅垂线偏离S1后上缘的距离均保持正常.随访2年时,A组远端交界性后凸、胸椎后凸角、胸腰段交界性后凸分别达3.6°、23.0°、6.4°,其中远端交界性后凸与术前比较差异有统计学意义(P<0.05).B组和C组各项指标与术前比较差异均无统计学意义.结论 全钩型同定可以获得良好的冠状面矫形,且在随访中能保持腰椎前凸和欠状面平衡.但钩的固定不如椎弓根螺钉牢固,全钩型固定患者胸椎后凸角有增大趋势,胸腰椎交界区有失代偿的可能.     

椎板钩和椎弓根钉系统治疗特发性脊柱侧凸后侧矫正与融合术的比较分析

目的：对椎板钩和椎弓根钉系统治疗特发性胸椎侧凸后侧矫正和融合术的临床结果进行比较分析。并探讨脊柱椎弓根钉系统在外科治疗脊柱侧凸中是否安全，是否可以矫正出更好的曲线，是否要求更短的融合。方法：对50例特发性脊柱侧凸的病人用椎弓根钉和椎板钩治疗后，分析他们的矫正曲线，融合长度以及并发症发生率。25例病人采用椎板钩的系统手术，称椎板钩组；25例病人采用两种术式，上胸段椎板钩下胸段和腰段椎弓根钉联合术式或者完全用椎弓根钉系统手术，称椎弓根钉组。结果：在随后的(1～8年)曲线校正中椎弓根钉组达到50．1％(P=0．001)，明显好于椎板钩组的41．1％。依据Perdriolle标准，两组对脊椎尖端的旋转都矫正甚微，椎板钩矫正了42．0％，椎弓根钉矫正了55．6％。对矢状面畸形的矫正两个组没有区别。融合长度椎弓根钉组较椎板钩组平均少0．6个锥体。结论：椎弓根钉组在矫正侧弯的角度等方面明显好于椎板钩组。     

后路全椎弓根螺钉系统治疗青少年特发性脊柱侧凸疗效分析

目的 探讨采用单纯后路全椎弓根螺钉系统治疗青少年特发性脊柱侧凸(AIS)的疗效.方法 2002年4月至2006年7月,连续收治121例AIS患者,其中男性28例,女性93例;年龄10～20岁,平均15.5岁.全部患者采用后路全椎弓根螺钉系统治疗.手术前后在脊柱X线片上测量冠状位Cobb角,矢状面胸椎后凸和腰椎前凸角,最下端融合椎冠状面成角,锁骨角及双肩高度差.骶骨中垂线与融合下端椎、顶椎及C,中垂线平均距离,融合近端交界区后凸角,对以上指标进行对比分析并观察并发症发生情况.结果 平均融合(11.0±1.5)个椎体.冠状面平均矫正率近胸弯为41.8%,主胸弯为70.8%,胸腰.腰弯为74.0%;矢状面各指标无明显改变.主弯顶椎偏移及双肩平衡均得到良好恢复.术后随访36～54个月,未发现假关节形成,且无明显矫形丢失;1例患者出现附加现象,4例患者出现术后近胸弯失代偿,15例患者出现近端交界性后凸.结论 后路全椎弓根螺钉系统治疗AIS能获得良好的矫正率,并发症少,疗效满意.     

置钉密度与Lenke1型青少年特发性脊柱侧凸矫正率的相关性

[目的]回顾性分析全椎弓根螺钉矫形治疗Lenke 1型青少年特发性脊柱侧凸矫正率与置钉密度间的相关性.[方法]2007～2009年,56例行后路全椎弓根螺钉矫形内固定的Lenke 1型青少年特发性脊柱侧凸患者纳入回顾性研究.测量术前、术后影像学资料,分析侧凸矫正率与置钉密度的相关性.[结果]所有患者无手术相关的严重并发症发生.主胸弯角度由术前平均53.4°±11.7°矫正为18.4°±10.5°(P<0.05),冠状面平均矫正率为66.8%.胸椎后凸由术前31.8°±4.39°降至22.3°±3.13°(P<0.05).平均置钉密度为1.56 (1.0～2.0).矢状面胸椎后凸的减小与冠状面Cobb角的矫正度数和矫正率明显相关(P<0.05).置钉密度与侧凸矫正率无相关性.[结论]椎弓根螺钉系统治疗胸椎特发性侧凸可以获得良好的冠状面矫形,但会造成矢状面胸椎后凸减小.置钉密度与侧凸的矫正率无相关性.     

应用椎板开窗法置入胸椎椎弓根螺钉的精确性和安全性评估

目的 分析应用椎板开窗法行胸椎椎弓根螺钉置入治疗重度脊柱侧后凸患者的精确性和安全性. 方法 1996年6月至2007年12月,应用椎板开窗法行胸椎椎弓根螺钉置入治疗23例重度脊柱侧后凸患者(A组),其中男性9例,女性14例;年龄13～23岁,平均17.8岁;术前主胸弯冠状面Cobb角平均97.3°,平均后凸角67.4°.作为对照,同期应用非开放法置钉治疗重度脊柱侧后凸患者22例(B组),其中男性7例,女性15例;年龄14～21岁,平均17.2岁;术前主胸弯冠状面Cobb角平均为96.6°,平均后凸角62.1°.两组患者术后均行CT扫描,统计螺钉置入并发症,对螺钉穿透椎弓根皮质骨的CT扫描图像进行联机测量并统计分析.结果 A组和B组各置入胸椎椎弓根螺钉209和201枚,术中发生椎弓根骨折5例和16例,发生硬膜撕裂4例和7例,螺钉错置18枚和45枚.B组螺钉错置率高于A组,差异具有统计学意义(P<0.05).A组上、中胸椎与下胸椎之间、凸侧与凹侧之间,螺钉错置率差异均具有统计学意义(P<0.05).两组均无脊髓及大血管损伤. A和B组经平均3.2年、3.4年随访,术后冠状面和矢状面平均矫正度未见明显丢失.结论 重度脊柱侧后凸胸椎椎弓根螺钉置入技术难度较高,应用椎板开窗法可有效增加螺钉置入精确性和安全性.     

胸椎经关节突关节椎弓根螺钉固定的可行性研究

 目的明确胸椎后路经关节突关节椎弓根螺钉固定的解剖学可行性和技术参数.为临床应用提供参考。方法取 20具胸椎标本.仔细解剖胸椎的后侧和前侧方.以清楚地暴露胸椎椎板和椎弓根。以椎板下缘向上、外缘向内各 7 mm为进钉点.在 T_1.2、T_5.6、T_9.10直视下置入经关节突关节椎弓根螺钉.通过直接的置钉和 CT重建.观察胸椎后路经关节突关节椎弓根螺钉实际置钉的可行性.测量经关节突关节椎弓根螺钉内固定进钉角度和钉道长度。结果所有胸椎后路经关节突关节椎弓根螺钉均由上位胸椎下关节突经关节突关节.进入下位胸椎的椎弓根.成功置入下位胸椎的椎体内。重建 CT测量发现螺钉在横断面的外倾角度为 2.1°±0.7°.在矢状面的尾倾角度为 41.4°±3.2°.在各节段间略有不同.但差异无统计学意义。平均的螺钉钉道长度为(40.6±4.9) mm.钉道长度由上胸椎向中、下胸椎呈逐渐增加趋势.差异有统计学意义(F=74.09, P<0.01)。结论胸椎后路经关节突关节椎弓根螺钉具有解剖学可行性.可以作为胸椎椎弓根螺钉固定的一种补充内固定方法.但置钉时要求较高的准确性。     

全椎弓根螺钉与钉钩混合系统治疗青少年特发性脊柱侧凸的疗效分析

目的 通过临床病例回顾,对后路全椎弓根螺钉系统和钉钩混合系统治疗青少年特发性脊柱侧凸的疗效进行对比分析研究.方法 从2000年至2004年进行手术治疗的青少年特发性脊柱侧凸患者中选取60例配对分为两组(A、B两组,各30例),A组采用后路钉钩混合系统固定,B组采用后路全椎弓根螺钉系统固定,配对患者年龄相似、融合节段相仿、Lenke分型相近.通过比较手术前后影像学改变、手术时间、术中出血等,对两种手术方法的疗效进行对比分析研究.结果 A组患者术前冠状面主弯Cobb角平均为61°,术后为25°,平均矫正率为59%;B组患者术前冠状面主弯Cobb角平均为60°,术后为18°,平均矫止率为70%.两组患者主弯矫正率差异有统计学意义(P=0.002),随访2年两组间主弯矫正率差异仍有统计学意义(A、B两组分别为49%、67%,P<0.001).矢状面上,与术前相比,术后2年A组的胸椎后凸角平均减少了1°,而B组则减少了6°,差异有统计学意义(P=0.026).随访结果 提示,两组在下端椎远端融合椎体数、平均失血量方面差异均无统计学意义.两组患者术后均未出现神经系统并发症.结论 全椎弓根螺钉系统较钉钩混合系统能提供更好的主弯矫止率,而在最下端固定椎体的选择、术中失血量方面,两种内固定系统未见明显差异.     

椎板钩和椎弓根钉系统治疗脊柱侧凸病例对照研究

目的 探讨脊柱椎弓根钉系统治疗脊柱侧凸是否安全．是否可以矫正出更好的曲线，是否能达到更短节段的融合。方法 50例特发性脊柱侧凸患者中15例采用椎板钩系统手术(椎板钩组)，25例采用上胸段椎板钩、下胸段和腰段椎弓根钉联合术式或者完全川椎弓根钉系统手术(椎弓根钉组)比较两组矫正曲线、融合长度以及并发症发生率。结果 随访1～8年，曲线校正：椎弓根钉组达50．1％，明显好于椎板钩组的41.1％。矢状面畸形的矫正：两组没有区别融合长度：椎弓根钉组较椎板钩组平均少0．6个锥体。结论 椎弓根钉组在矫正侧凸的角度等方面明显好于椎板钩组。     

TSRH器械在特发性脊柱侧凸中的应用

[目的]观察TSRH三维矫形系统矫正特发性脊柱侧凸冠状面、矢状面和轴状面的疗效,评价应用钉棒系统和钉钩棒系统随访时的效果。[方法]分析采用TSRH系统治疗特发性脊柱侧凸79例,男48例,女31例,平均15.5岁。全部应用椎弓根螺钉系统56例,胸椎应用椎弓根钩或椎板钩,腰椎应用椎弓根螺钉23例。对照分析2组的矫正效果。[结果]术后冠状位矫正为18~31°,矫正率为56%~87%,平均为68%,矢状位矫正为21~33°,平均25°,旋转矫正Ⅰ度。身高平均增高3 cm。63例平均随访2.5 a,2组冠状面和矢状面的矫正率以及冠状面矫正度的丢失有明显的差异。[结论]TSRH矫形系统治疗脊柱侧凸可得到满意的治疗效果,应用椎弓根螺钉效果更佳。     

Comparative analysis of pedicle screw and hook instrumentation in posterior correction and fusion of idiopathic thoracic scoliosis

Posterior correction and fusion with segmental hook instrumentation represent the gold standard in the surgical treatment of progressive idiopathic thoracic scoliosis. However, there is a debate over whether pedicle screws are safe in scoliosis surgery and whether their usage might enable a better curve correction and a shorter fusion length. The details of curve correction, fusion length and complication rate of 99 patients with idiopathic thoracic scoliosis treated with either hook or pedicle screw instrumentation were analyzed. Forty-nine patients had been operated with the Cotrel-Dubousset system using hooks exclusively ("hook group"). Fifty patients had been operated with either a combination of pedicle screws in the lumbar and lower thoracic and hooks in the upper thoracic spine or exclusive pedicle screw instrumentation using the Münster Posterior Double Rod System ("screw group"). The preoperative Cobb angle averaged 61.3 degrees (range 40 degrees-84 degrees ) in the hook group and 62.5 degrees (range 43 degrees-94 degrees ) in the screw group. Average primary curve correction was 51.7% in the hook group and 55.8% in the screw group ( P>0.05). However, at follow-up (2-12 years later) primary curve correction was significantly greater ( P=0.001) in the screw group (at 50.1%) compared to the hook group (at 41.1%). Secondary lumbar curve correction was significantly greater ( P=0.04) in the screw group (54.9%) compared to the hook group (46.9%). Correction of the apical vertebral rotation according to Perdriolle was minimal in both groups. Apical vertebral translation was corrected by 42.0% in the hook group and 55.6% in the screw group ( P=0.008). Correction of the tilt of the lowest instrumented vertebra averaged 48.1% in the hook group and 66.2% in the screw group ( P=0.0004). There were no differences concerning correction of the sagittal plane deformity between the two groups. Fusion length was, on average, 0.6 segments shorter in the screw group compared to the hook group ( P=0.03). With pedicle screws, the lowest instrumented vertebra was usually one below the lower end vertebra, whereas in the hook group it was between one and two vertebrae below the lower end vertebra. Both operative time and intraoperative blood loss were significantly higher in the hook group ( P<0.0001). One pedicle screw at T5 was exchanged due to the direct proximity to the aorta. There were no neurologic complications related to pedicle screw instrumentation. Pedicle screw instrumentation alone or in combination with proximal hook instrumentation offers a significantly better primary and secondary curve correction in idiopathic thoracic scoliosis and enables a significantly shorter fusion length.     

青少年Chiari畸形伴胸椎侧凸远端融合范围的选择及疗效比较

目的 探讨青少年Chiari畸形伴胸椎侧凸不同远端固定节段的选择对手术疗效的影响.方法 后路选择性胸椎融合术且随访超过2年的青少年共27例,男11例,女16例;年龄为12～18岁,平均15.2岁.记录术前、术后以及末次随访时的临床资料及影像学指标:冠状面侧凸Cobb角、侧凸柔韧性、顶椎偏移(apical vertebral translation,AVT)、顶椎旋转(apical vertebral rotation,AVR)及躯干偏移;矢状面胸椎后凸角(thoracic kyphosis,TK)、胸腰段Cobb角(thoracolumbar kyphosis,TLK)、腰椎前凸角(lumbar lordosis,LL)及躯干偏移(sagittal vertical axis,SVA),并进行统计学分析.结果 随访时间2～7年,平均3.4年.末次随访时的胸弯矫正率为55.9％,矫正丢失率2.3％,腰弯自发矫正率为59.2％.术前腰弯修正为A型与B型两组患者末次随访时各项影像学指标的差异均无统计学意义.除腰弯修正为B型且远端固定椎为L1的病例末次随访时的平均LL(59.8°)明显大于L2者(40.8°)外,A型及B型病例中远端固定椎位于L1或L2者其他各项影像学指标的差异均无统计学意义.结论 术前腰弯修正为A型及B型的青少年Chiari畸形伴胸椎侧凸患者采用后路选择性胸椎融合术治疗,可获得满意的胸弯矫正及腰弯的自发性矫正.     

Correction of cervical kyphosis using pedicle screw fixation systems

STUDY DESIGN: This retrospective study was conducted to analyze the clinical results in 30 patients with cervical kyphosis that had been treated using cervical pedicle screw fixation systems. OBJECTIVES: To evaluate the effectiveness of a pedicle screw fixation procedure in correction of cervical kyphosis. SUMMARY OF BACKGROUND DATA: Correction of cervical kyphosis is a challenging problem in the field of spinal surgery. There have been several reports regarding surgical correction of cervical kyphosis; however, there have been no detailed reports on correction of cervical kyphosis using a pedicle screw fixation procedure. METHODS: Thirty patients with cervical kyphosis underwent correction and fusion using cervical pedicle screw fixation. Seventeen of 30 patients with flexible kyphosis (Group I) were managed by a posterior procedure alone. The remaining 13 patients with rigid or fixed kyphosis (Group II) had a combined anterior and posterior procedure. RESULTS: The average preoperative cervical kyphosis of 29.4 degrees improved to 2.3 degrees after surgery and was 2.8 degrees at the final follow-up. In Group I patients, preoperative kyphosis of 28.4 degrees improved to 5.1 degrees at the final follow-up. In contrast, preoperative kyphosis of 30.8 degrees in Group II patients improved to 0.5 degree at the final follow-up. Solid fusion was achieved in all patients. There were two patients with transient nerve root complications related to pedicle screw instrumentation. CONCLUSION: Cervical kyphosis in 30 patients was effectively corrected using a pedicle screw fixation procedure with no serious complications. Flexible kyphosis with segmental motion can be satisfactorily corrected by a single posterior procedure using pedicle screw fixation. However, circumferential osteotomies combined with a posterior shortening procedure involving a pedicle screw system are required to achieve the best correction of fixed kyphosis by bony union. Cervical pedicle screw fixation is the most advantageous instrumentation in the correction of cervical kyphosis.     

Comparative analysis of pedicle screw versus hybrid instrumentation in adolescent idiopathic scoliosis surgery

The expectations of both the patient and surgeon have been greatly revised in the last 10 years with the introduction of pedicle screws (PS) in spinal surgery. In this study, we have retrospectively evaluated and compared the results of PS instrumentation and the Hybrid System (HS), the latter consists of pedicle screws, sublaminar wire and hooks. The mean follow-up period was 60.1 months (range: 49-94 months) for the patients of the HS group and 29.3 months (range: 24-35 months) for those of the PS group. In the HS group, pedicle screws were used at the thoracolumbar junction and lumbar vertebra, the bilateral pediculotransverse claw hook configuration was used at the cranial end of the instrumentation, sublaminar wire was used on the concave side of the apical region and the compressive hook was used on the convex side. In the PS group, PS were used on the concave sides at all levels and on the convex side of the cranial and caudal end of instrumentation, in the transition zone and at the apex. The two groups were comparable for variables such as mean age, preoperative Cobb angle, thoracic kyphosis angle, lordosis angle, coronal balance, flexibility of the curve, apical vertebra rotation (AVR), apical vertebra rotation (AVT) and the number of vertebrae included in the fusion (p > 0.05). The parameters of values of correction, ratio of correction loss, AV derotation, AVT correction ratio, amount of blood loss, operation time, postoperative global coronal and sagittal balance, thoracic kyphosis angle and lumbar lordosis angle were measured at the last follow-up and used for comparing the HS and PS groups. There was no statistically significant difference between the groups for correction ratio, postoperative coronal balance, postoperative thoracic kyphosis and lumbar lordosis angle, operation time, amount of blood loss and number of fixation points (p > 0.05) The difference for the ratio of correction loss, AV derotation angle and the AVT correction ratio at the last follow-up visit and for the total follow-up period between the groups was found to be statistically significant (p < 0.05). Although it is possible to obtain a similar amount of correction by either instrumentation system, the loss of correction seems to be lower with the more rigid PS construction. The PS system also has a stronger effect on vertebral bodies, thereby providing better AV de-rotation. There was no significant difference (p > 0.05) between the groups in terms of correction rate, postoperative coronal and sagittal balance, operation time, blood loss and number of fixation points. This may indicate that anchor points are more important than the use - or not - of screws. Correction durability and AV de-rotation was better with PS instrumentation, while AVT was better corrected by HS instrumentation (p < 0.05). We propose that the reason for the better correction of AVT with HS instrumentation is the forceful translation offered by the sublaminar wire at the apical region, while the reason for the better correction durability of the PS instrumentation may be due to the fact that multiple pedicle screws which afford three-column control are better at maintaining the correction and preventing late deterioration.     

Segmental pedicle screw instrumentation in idiopathic thoracolumbar and lumbar scoliosis

The role of posterior correction and fusion in thoracolumbar and lumbar scoliosis as well as pedicle screw instrumentation in scoliosis surgery are matters of debate. Our hypothesis was that in lumbar and thoracolumbar scoliosis, segmental pedicle screw instrumentation is safe and enables a good frontal and sagittal plane correction with a fusion length comparable to anterior instrumentation. In a prospective clinical trial, 12 consecutive patients with idiopathic thoracolumbar or lumbar scolioses of between 40° and 60° Cobb angle underwent segmental pedicle screw instrumentation. Minimum follow-up was 4 years (range 48– 60 months). Fusion length was defined according to the rules for Zielke instrumentation, normally ranging between the end vertebrae of the major curve. Radiometric analysis included coronal and sagittal plane correction. Additionally, the accuracy of pedicle screw placement was measured by use of postoperative computed tomographic scans. Major curve correction averaged 64.6%, with a loss of correction of 3°. The tilt angle was corrected by 67.0%, the compensatory thoracic curve corrected spontaneously according to the flexibility on the preoperative bending films, and led to a satisfactory frontal balance in all cases. Average fusion length was the same as that of the major curve. Pathological thoracolumbar kyphosis was completely corrected in all but one case. One patient required surgical revision with extension of the fusion to the midthoracic spine due to a painful junctional kyphosis. Eighty-five of 104 screws were graded “within the pedicle”, 10 screws had penetrated laterally, 5 screws bilaterally and 4 screws medially. No neurological complications were noted. In conclusion, despite the limited number of patients, this study shows that segmental pedicle screw instrumentation is a safe and effective procedure in the surgical correction of both frontal and sagittal plane deformity in thoracolumbar and lumbar scoliosis of less than 60°, with a short fusion length, comparable to anterior fusion techniques, and minimal loss of correction. Received: 23 September 1999 Revised: 20 January 2000 Accepted: 26 January 2000     

近端固定椎的选择对Lenke 5型脊柱侧凸前路矫形疗效的影响

  目的 探讨近端固定椎的选择对Lenke 5型脊柱侧凸前路融合术矫形疗效的影响。方法 2002年1月至2006年12月接受前路选择性单棒矫形手术治疗 且获得2年以上随访的女性Lenke 5型青少年特发性脊柱侧凸患者36例,近端固定至上端椎21例、近端固定至上端椎下方椎体15例。两组患者平均年龄为（15.3± 1.8）岁和（15.5±1.9）岁,平均胸腰或腰主弯Cobb角为46.2°和46.7°,近端胸弯为26.3°和29.6°。平均融合节段为5.3和4.8个椎体。结果 两组平均随访 31和33个月。冠状面胸腰或腰主弯矫正率为79%和70%（P=0.062）,近端胸弯自发矫正率为46%和29%（P=0.044）。矢状面上,术前和术后两组患者腰椎前凸角、 骶骨倾斜角差异均无统计学意义。矢状面平衡维持于较小的负平衡。胸椎后凸角分别有4.0°和2.3°的轻度增加,末次随访时近端固定至上端椎组大于近端固定 至上端椎下方椎体组（P=0.029）。胸腰段交界性成角均表现为轻度后凸增加,并最终保持2°~4°后凸角。近端交界性后凸均有轻度增加,融合节段成角均呈前 凸减小甚至出现后凸趋势。结论 Lenke 5型脊柱侧凸行前路选择性融合术中,近端融合至上端椎较固定至端椎下方椎体可获得更好的冠状面主弯矫正和近端胸弯 自发性矫正,矢状面矫形效果相似。     

All pedicle screw instrumentation for Scheuermann's kyphosis correction: is it worth it?

Background contextScheuermann's kyphosis has long been treated by a two-staged fusion and instrumentation with a hybrid construct using hooks, pedicle screws, and sublaminar wires. Recent interest in all pedicle screw constructs led to its use in the treatment of Scheuermann's kyphosis. Evaluation of this newly described application is needed.PurposeTo compare the results of segmental all pedicle screw constructs versus two-staged hybrid instrumentation in patients with Scheuermann's kyphosis analyzing the amount of correction and incidence of complications.Study designRetrospective case series reporting on two groups of patients with Scheuermann's kyphosis treated with single-staged all pedicle screws technique versus two-staged anterior release and posterior hybrid instrumentation followed-up for a minimum of 2 years.Patient sampleThe study included 33 patients divided into two groups. The average age was 15 years+9 months and 16 years+8 months, respectively. The average preoperative dorsal kyphosis was 85.5 degrees (Group 1) and 79.8 degrees (Group 2).Outcome measuresThe deformity was measured by Cobb's method preoperatively, postoperatively, and at final follow-up. Operative time and blood loss were also measured and recorded. The results of the Scoliosis Research Society (SRS)-30 questionnaire were also reviewed.MethodsThe study included 16 patients who underwent a single-staged correction by segmental all pedicle screw constructs and multiple-level posterior osteotomies (Group 1) and 17 who underwent a two-staged fusion and instrumentation with a hybrid construct (Group 2).ResultsBoth groups were followed for a minimum of 2 years. The deformity correction of Group 1 had an average of 52.2% postoperatively with 2.4% loss at final follow-up in comparison to Group 2 where the correction was 48.7% postoperatively with 3.1% loss at final follow-up. The operative time was considerably less in Group 1 with an average of 215 minutes than Group 2 with an average of 315 minutes. The average blood loss was 620 cc in Group 1 and 910 cc in Group 2. The SRS-30 questionnaire in Group 1 averaged 134 and in Group 2 averaged 120.ConclusionsThe use of multiple-level all pedicle screws technique allowed a rigid anchor for posterior correction of the deformity with less operative time, blood loss, and hospital stay without the need for anterior release. A better correction was achieved and preserved with the use of all pedicle screw constructs. This technique is a useful modality in the treatment of Scheuermann's kyphosis.