目的:探讨CCRS拉钩在颈椎前路手术中的应用方法及结果。方法:回顾分析2007~2008年在我院完成的97例颈椎前路手术中,应用CCRS拉钩来显露切口者的临床资料,并观察平均手术时间、术中出血量、周围软组织突入手术野的次数、术者术中调整撑开器的次数、患者术后咽部不适时间和医生满意度等指标。结果:该组病例平均手术时间103min,平均术中出血量110 mL,每台次软组织突入术野的次数为0~2次,术者术中调整CCRS 1~2次,患者术后咽部不适1~4 d,医生满意度为95.88%。结论:CCRS拉钩撑开切口后颈前方显露清晰,避免了周围软组织突入颈前操作区,从而提高了手术安全性和术者满意度。
Objective To evaluate the cl inical outcomes of primary anterior focus debridement, bone autograft, and internal fixation via transperitoneal approach in treating tuberculosis of the lumbosacral junction. Methods From February 2002 to April 2007, 16 patients with tuberculosis of the lumbosacral junction underwent anterior radical debridement, autologous il iac bone graft (two pieces of il iac bone, 5 cm × 3 cm in size), and internal fixation via transperitoneal approach, including 4 males and 12 females aged 27-63 years old (average 38 years old). The course of the disease ranged from 6 to 18 months (average 10 months). All patients experienced various degrees of pain in the lumbosacral area and toxic symptoms of thetuberculosis. Nine cases were compl icated with radicular pain in the lower extremities, and 3 cases had saddle area anaesthesia. Two cases were initially diagnosed as lumbar intervertebral disc protrusion and treated accordingly. The segments involved by the tuberculosis were L5-S1 level in all cases. The average erythrocyte sedimentation rate (ESR) was 61 mm/hour. Imaging examination confirmed the diagnosis of spinal tuberculosis. All cases received four antitubercular drugs and nutrition support for nerve before operation. Operation was performed when hepatorenal function was normal, and the toxic symptom of the tuberculosis was under control or ESR was decreased. Results Operation was performed safely in all cases without injuries of abdominal viscera, major blood vessel, cauda equina nerve and ureter. All wounds healed by first intention. No recurrence of tuberculosis and formation of sinuses occurred. All cases were followed up for 12-37 months (average 21 months). No such compl ications as tuberculous peritonitis and intestinal obstruction occurred. No postoperative erectile dysfunction and retrograde ejaculation occurred in the 4 male patients. ESR was recovered to normal 3-6 months after operation, and regular X-ray and CT exams showed no displacement of grafted bone. All patients achieved bony fusion 12 months after operation without the occurrence breakage and loosening of titanium plate and screw. The radical pain in the lower extremities and the saddlearea anaesthesia disappeared. Four patients had pain in the il iac donor site, 2 patients had mild pain in the lumbosacral area, and the pain was el iminated after symptomatic treatment. The therapeutic effect was graded as excellent in 14 cases and good in 2 cases according to the therapeutic effect evaluation criteria of Chen and co-workers. Conclusion The surgical treatment of tuberculosis of the lumbosacral junction with primary anterior focus debridement, bone autograft, and internal fixation via transperitoneal approach can achieve satisfying bony fusion and reconstruct spinal stabil ity.
Objective To compare the loss of anterior column heightand cervical Cobb angle with three different types of anterior cervical discectomy and fusion(ACDF). Methods A prospective randomized study was performed on 60 patients who had undergone ACDF with the autologous iliac crest graft (group A, n=20), the autogenous bone and the anterior cervical locking plates (group B, n=20), and Syncage-C filled with the local autograft reamings (group C, n=20) from January 1998 to January 2003. The patients diagnosed as having cervical radiculopathy (RP) and cervical spondylotic myelopathy (CSM) were indicated for ACDF. Of the patients, 41 were male and 19 female with a mean age of 57 years (range, 36-68) and their average course of disease was 6.2 months (range, 1-36). There were 36 one-level and 24 two-level fusions from C3,4 to C7,T1. Radiological measurements were performed on the cervical radiographs taken before operation, 7 days and 3 months after operation, and on the last day of the follow-up; then, the height and Cobb angle of the fused segment, functional restoration, and clinical outcome were evaluated in the three groups. Results The followup of more than 2 years (range,2-7) showed that the average loss of anterior column height and Cobb angle of the fused segments in groups A and B, which had not preserved the-endplate, hada greater increase than that in group C, which had preserved the endplate. Of the patients, 12 had autograft collapse, 3 autograft displacement, and 10 postural abnormality between the fused segments, most of which happened in groups A andB. The fusion rate was 93.3% (56 cases) according the strict arthrodesis critera; their excellent and good rate in the functional assessment was 83.3% (RP 90.4%, CSM 79.5%); the overall satisfactory (excellent and good) rates in groups A,B and C were 75%, 85% and 90%, respectively. Conclusion To increase the resistance to graft subsidence, which is a major reason for narrowness of the fused segments, and to maintain normal cervical curvature, we should improve our skills of bone grafting performance, preserve the endplate, carefully evaluate the degree of osteoporosis before operation, and use anterior cervical locking plate and /or fusion with Syncage-C when necessary.
Objective To explore the anatomical parameters of the cervical uncinate process “inflection point” through cervical CT angiography (CTA) and MRI measurements, offering a reliable and safe anatomical landmark for anterior cervical decompression surgery. Methods A retrospective analysis was conducted on the cervical CTA and MRI imaging data of normal adults who met the selection criteria between January 2020 and January 2024. The CTA dataset included 326 cases, with 200 males and 126 females, aged 22-55 years (mean, 46.7 years). The MRI dataset included 300 cases, with 200 males and 100 females, aged 18-55 years (mean, 43.7 years). Based on the CTA data, three-dimensional models of C3-C7 were constructed, and the following measurements were obtained from the superior view: uncinate process “inflection point” to vertebral artery distance (UIVD), uncinate process tip to vertebral artery distance (UTVD), uncinate process “inflection point” to “inflection point” distance (UID), uncinate process long-axis to sagittal angle (ULSA), and uncinate process “inflection point” to transverse foramen-sagittal angle (UITSA). From the anterior view, the anterior uncinate process to sagittal angle (AUSA) was measured. From the posterior view, the posterior uncinate process to sagittal angle (PUSA) was measured. Based on the MRI data, uncinate process “inflection point” to dural sac distance (UIDD) and dural sac width (DSW) were measured. The trends in measurement parameters of C3-C7 were observed, and the differences in measurement parameters between genders and between the left and right sides of the same segment were compared, as well as the difference in UID and DSW within the same segment was compared. Results The measurement parameters from C3 to C7 in the CTA data showed a general increasing trend, with no significant difference between the left and right sides within the same segment (P>0.05). The UIVD, UTVD, and UID were greater in males than in females, with significant differences observed in the UIVD and UTVD at C3 and C6 and UID at C3, C6, and C7 (P<0.05). The MRI measured DSW showed a general increasing trend from C3 to C7, and the DSW at C6 was greater in females than in males, with a significant difference (P<0.05). The UIDD showed a gradual decreasing trend, with the smallest value at C6. There was no significant difference between males and females or between the left and right sides within the same segment (P>0.05). The UID was greater than the DSW at C3-C7, and the differences were significant (P<0.05). ConclusionThe uncinate process “inflection point” is a constant anatomical structure located at the anteromedial aspect of the uncinate process tip and laterally to the dural sac. It maintains a certain safe distance from the vertebral artery. As a decompression landmark in anterior cervical spine surgery, it not only ensures surgical safety but also guarantees complete decompression.
ObjectiveTo compare the effectiveness between anterior cervical Zero-profile interbody fusion device (Zero-P) and anterior cervical plate device (plate cage benezech, PCB) for cervical disease. MethodsBetween February 2011 and January 2013, 98 patients with cervical spondylosis who accorded with the inclusion criteria were treated with Zero-P in 49 cases (group A) and with PCB in 49 cases (group B). There was no significant difference in gender, age, disease type, disease duration, and disease segments between 2 groups (P>0.05). The Cobb angle, short-form 36 health survey scale (SF-36 scale), Japanese Orthopedic Association (JOA) score, postoperative dysphagia cases, neck disability index (NDI), and visual analogue scale (VAS) score were compared between 2 groups. ResultsThe operation time and intraoperative blood loss of group A were significantly less than those of group B (t=4.089, P=0.000;t=3.587, P=0.001). The patients were followed up 3-36 months (mean, 18.5 months). No loosening or breaking of internal fixation and bone absorption or collapse occurred in the other patients except 2 patients who suffered from screw loosening at 3 months after operation. Within 6 months after operation, dysphagia occurred in 8 cases (16.33%) of group A and in 13 cases (26.53%) of group B, showing significant difference (χ2=10.616, P=0.001). At last follow-up, JOA score, VAS score, NDI, SF-36 scale, and Cobb angle were significantly improved when compared with preoperative ones in 2 groups (P<0.05);the other indexes of group A were significantly better than those of group B (P<0.05) except SF-36 scale and Cobb angle (P>0.05). The excellent and good rate of JOA score was 81.63% in group A and 71.43% in group B, showing significant difference (χ2=4.346, P=0.037). ConclusionZero-P and PCB can get good results in treatment of cervical disease, but the Zero-P is better than PCB in reducing postoperative dysphagia because less wounds and strong stability.
目的 探讨前路小切口顶椎切除联合后路矫形手术治疗重度僵硬性脊柱侧凸的可行性及疗效。 方法 2009 年7月－2010年9月，采用前路小切口顶椎切除联合后路矫形手术治疗重度僵硬性脊柱侧凸18例。其中男9例，女9例，年龄10～24岁，平均14.5岁。其中15 例特发性脊柱侧凸（Lenke 2型6例，Lenke 3型1例，Lenke 4型8例），2 例脊髓空洞合并脊柱侧凸，1 例Chiari畸形合并脊柱侧凸。术前剃刀背高度（6.8 ± 2.3）cm，主胸弯Cobb角（99.6 ±10.0）°，主胸弯顶椎偏距（7.3 ± 1.3）cm。 结果 前路手术切口10～13 cm，平均（11.4 ± 1.0）cm；前路手术时间170～300 min，平均（215.3 ± 36.8）min；失血量300～1 300 mL，平均（662.5 ± 274.8） mL。所有患者随访25～39个月，平均30.7个月。末次随访时，剃刀背高度（1.0 ± 0.6）cm，矫正率86.7%；主胸弯Cobb角（31.4 ± 11.4）°，矫正率68.7%；主胸弯顶椎偏距（2.2 ± 0.9） cm，矫正率69.6%。上胸弯、胸腰弯/腰弯的Cobb 角及顶椎偏距亦明显矫正，冠状面及矢状面平衡与术前相比，差异无统计学意义（P＞0.05）。未发生神经系统并发症，1例患者在前路手术后入ICU行呼吸支持治疗12 h，1例患者出现椎弓根螺钉穿透椎弓根上壁，2例患者出现钛网位置不佳，随访未见钛网位置改变。 结论 采用前路小切口顶椎切除联合后路矫形治疗重度僵硬性脊柱侧凸安全可行，矫形效果满意。
To compare and evaluate the whole effect of anterior decompression approach to treat cervical spondylotic myelopathy by using cervical retractor systems and the traditional surgical approach. Methods From April 2001 to August 2004, group A included 30 males and 23 females aging from 31 to 69 years, and the involved time was from 7 months to 15 years. Involved segments included 22 one-segments, 24 two-segments and 7 three-segments. In all 53 cases, anterior windowing decompression and fusion with autograft and titanium plate internal fixation by using traditionalcircular saw were performed. Group B included 48 males and 20 females aging from 33 to 74 years, and the involved time was from 5 months to 18 years. Involved segments included 23 one-segments, 34 two-segments and 11 three-segments. In all 68 cases, anterior undermined far-reaching decompression and fusion with autograft and titanium plate internal fixation by using removing disc merely in the single-level or separately in the multilevels employing self-retractor and Caspar cervical retractor systems via interspinal approach were performed. X-rays and MRI showed cervical disc degeneration, herniation and spinal cord compression. The surgery time, loss of blood, vertebral body fusion time, difference in height of involved segments preor postoperatively and compl ications were counted up and compared between the two groups. Improvement rate of spinal function pre- or postoperatively were valued by using JOA score. Results A total of 92 cases including 42 of group A and 50 of group B were followed up for 3 to 5 years, mean 3.5 years. In group A, surgery time, loss of blood, time of vertebral body fusion, difference in height of involved segments pre- or postoperatively, and improvement ratio of spinal function were(76.80 ± 28.41) min,(564.00 ± 181.96) mL,(12.10 ± 3.58) weeks, (1.30 ± 0.67) mm and 0.49% ± 0.14%, respectively. In group B, they were(57.90 ± 15.01) min,(317.50 ± 136.92) mL,(9.75 ± 1.36) weeks, (3.00 ± 0.56) mm and 0.71% ± 0.17% , respectively. The differences between the two groups were significant in all measured values(P lt; 0.05). Compl ications occurred in 7 cases ofgroup A including 1 spinal cord injury, 1 plate displacement, 1 bonegraft displacement and 4 disfunctions of il iac region. No compl ication happened in group B. Conclusion Anterior decompression approach using cervical retractor systems is significantly superior to the traditional approach as to the whole effect to treat cervical spondylotic myelopathy, and furtherperfects the traditional anterior decompression approach. The modified approach is scientific, safe and easily spread.
Objective To study the clinical application ofheterogenous bone graft combined with auto-marrow. Methods Deproteinated and degreased heterogenouscancellous bone combined with auto-marrow was used in 21 cases of anterior cervical interbody fusion. Among them, 2 cases were treated by bone graft only, and the other 19 cases were further treated by anterior plate fixation. Results The follow-up time was 12-36 months with an average of 21 months. After operation, posteroanterior and lateral radiograph of all the cases revealed that the reduction and the position of the grafting bone were good without inflammation or other complications. After 6 months of operation, the radiograph of 2 cases of cervical disk herniation, which were treated by bone graft only, showed the bones lost their height and the curve of the cervical spine returned to the state of preoperation. For the other cases, the grafting bonesremained their original figure without dislocation of the bone or fracture of the plate or the screw. The nervous function recovered variously. Before operation, 10 cases were ranked as grade A,7 cases grade C, 4 cases grade D according to Frankel classification. After operation, in grade A cases, 5 cases did not recover, 3 cases recovered to grade B, 2 cases to grade C; in grade C cases, 5 to grade D, 2 to grade E; all ofgrade D 4 cases to grade E. Conclusion Heterogenous bone combined with auto-marrow can be used as grafting material in the anterior cervical interbodyfusion, but its mechanical rigidity need to be improved or the fusion shouldbe aided with rigid internal fixation.
OBJECTIVE: To discuss the value of anterior operation in fracture-dislocation of connect of cervical vertebrae and thoracic vertebrae. METHODS: From 1997, 21 patients with fracture-dislocation of connect of cervical vertebra and thoracic vertebrae were operated on. The interval between injury and operation was within 24 hours in 4 cases, 2-7 days in 9 cases, 8-14 days in 3 cases and within 4 weeks in 5 cases. The locations were C6,7 in 7 cases, C7 in 9 cases and T1 in 5 cases. The nerves function of spinal of all the cases have different degrees of injury. Classification of Frankel were the following: 3 cases of grade A, 6 cases of grade B, 9 cases of grade C, and 3 cases of grade D. The operative procedure included the following: anterior operation of cervical vertebrae; incision of most fracture vertebral body to decompress; transplantation of ilium bone grafting fusion; and internal fixation of anterior cervical vertebrae with locking-steel. RESULTS: In 21 patients, 1 died of accompanying by pulmonary infection; 20 were followed up 8 months to 3 years with an average of 21 months. All transplanted ilium had fused. The nerve function of spinal cord had recovered in different degrees(2 cases of grade A, 1 case of grade C, 9 cases of grade D and 8 cases of grade E); the turn of vertebral column was normal. No internal fixation failed. CONCLUSION: Anterior operation is a better way to treat fracture-dislocation of connect of cervical vertebrae and thoracic vertebrae with easy operation, less complications, satisfactory reduction of fracture and good stability.