AIM To evaluate the clinical and radiographic results of patients with complicated infectious spondylitis treated with single-stage anterior debridement and reconstruction using tantalum mesh cage(TaMC) followed by im...AIM To evaluate the clinical and radiographic results of patients with complicated infectious spondylitis treated with single-stage anterior debridement and reconstruction using tantalum mesh cage(TaMC) followed by immediate instrumentation.METHODS Single-stage radical debridement and subsequent reconstruction with TaMC instead of autograft or allograft were performed to treat 20 patients with spinal deformity or instability due to complicated infectious spondylitis. Clinical outcomes were assessed by careful physical examination and regular serological tests to determine the infection control. In addition, the visual analog score(VAS), neurologic status, length of vertebral body reconstruction, and the correction of sagittal Cobb angle on radiography were recorded and compared before and after surgery. The conditions of the patients were evaluated based on the modified Brodsky's criteria.RESULTS The average VAS score significantly decreased after the surgery(from 7.4 ± 0.8 to 3.3 ± 0.8, P < 0.001). The average Cobb angle correction was 14.9 degrees. The neurologic status was significantly improved after the surgery(P = 0.003). One patient experienced refractory infection and underwent additional debridement. Eighteen patients achieved good outcome based on the modified Brodsky's criteria and significant improvement after the surgery(P < 0.001). No implant breakage orTaMC dislodgement was found during at least 24 mo of follow-up.CONCLUSION Single-stage anterior debridement and reconstruction with TaMC followed by immediate instrumentation could be an alternative method to manage the patients with spinal deformity or instability due to complicated infectious spondylitis.展开更多
Objective:To clarify anatomy-related factors in the cervical spine with subsidence of titanium mesh cage (TMC) after one-level cervical corpectomy and fusion. The effect of the cervical posture, segmental curvature an...Objective:To clarify anatomy-related factors in the cervical spine with subsidence of titanium mesh cage (TMC) after one-level cervical corpectomy and fusion. The effect of the cervical posture, segmental curvature and endplate gradient on this postoperative phenomenon was evaluated. Methods: Between August 2003 and March 2006, a total of the 236 patients underwent one-level corpectomy and TMC fusion. Their radiological examinations were reviewed and clinical outcomes evaluated. Results: In the patients who were followed up for 12 months, TMC subsidence occurred in 54 (28.6%) cases. C6 corpectomy had a significant higher risk (26/60, 43.3%) for TMC subsidence, which was correlated with the variation of the gradient of the vertebral endplates against cervical levels. Although the clinical outcome was comparable with those in the literature, the patients may have subsidence-related problems such as neck-shoulder pain, neurological deterioration and instrumental failure. Conclusion: To decrease the incidence of subsidence, TMC design should be optimized to be in line with anatomic characteristics of the cervical spine.展开更多
目的评价新型解剖型钛笼(AA-TMC)在单节段及双节段颈前路椎体次全切植骨融合术(ACCF)中与终板的贴合程度以及对手术节段颈椎生理序列的重建效果。方法使用12具颈椎尸体标本完成单节段及双节段ACCF手术,使用AA-TMC进行椎体重建。通过X线...目的评价新型解剖型钛笼(AA-TMC)在单节段及双节段颈前路椎体次全切植骨融合术(ACCF)中与终板的贴合程度以及对手术节段颈椎生理序列的重建效果。方法使用12具颈椎尸体标本完成单节段及双节段ACCF手术,使用AA-TMC进行椎体重建。通过X线测量手术前后手术节段高度及角度以评价AA-TMC对手术节段生理序列的重建效果。同时测量术后AA-TMC与终板之间间隙大小以评价AA-TMC与终板的贴合程度。根据美国材料与实验学会F2267脊柱植入物沉陷试验标准对比AA-TMC与传统钛笼在终板支撑强度上的差异,评价AA-TMC在防止钛笼下沉方面的效果。结果单节段ACCF手术前后节段高度(23.90±2.18 mm vs 24.23±1.13 mm)及角度(11.62±2.67°vs 12.13±0.69°)之间无统计学差异(P>0.05)。双节段ACCF手术前后节段高度(42.93±3.51 mm vs 43.04±1.70 mm)及角度(15.63±5.06°vs 16.16±1.05°)之间无统计学差异(P>0.05)。AA-TMC与终上下板贴合良好,平均间隙0.37±0.3 mm及0.42±0.28 mm。相比于传统钛笼,单节段及双节段ACCF使用AA-TMC进行椎体重建可显著提高终板支撑强度(单节段ACCF:719.7±5.5 N vs 875.8±5.2 N;双节段ACCF:634.3±5.9 N vs 873±6.1 N),差异具有统计学意义(P<0.05)。结论在单节段及双节段ACCF中使用AA-TMC进行椎体重建可显著提高终板支撑强度,从而有效降低了钛笼下沉发生的可能。并且,使用AA-TMC可有效重建颈椎生理序列。展开更多
[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior lon...[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior longitudinal ligament,OPLL）8例;单节段病变21例,双节段病变6例。术前均经X线及MRI排除骨折、脱位。手术方式采用椎体次全切除减压,新型翼形钛网内植骨及螺钉内固定。[结果]本组27例随访6~14个月,平均10个月,植骨融合时间平均10周,术后3、6及12个月复查X线未见钛网松动、脱出、塌陷。[结论]该翼形钛网内固定植入能提供颈椎次全切除后脊柱即时稳定性,术后可避免钛网移位,塌陷、脱出。手术操作简单安全,不需取髂骨,同时减轻患者经济负担。且为弹性固定,骨融合率高。展开更多
文摘AIM To evaluate the clinical and radiographic results of patients with complicated infectious spondylitis treated with single-stage anterior debridement and reconstruction using tantalum mesh cage(TaMC) followed by immediate instrumentation.METHODS Single-stage radical debridement and subsequent reconstruction with TaMC instead of autograft or allograft were performed to treat 20 patients with spinal deformity or instability due to complicated infectious spondylitis. Clinical outcomes were assessed by careful physical examination and regular serological tests to determine the infection control. In addition, the visual analog score(VAS), neurologic status, length of vertebral body reconstruction, and the correction of sagittal Cobb angle on radiography were recorded and compared before and after surgery. The conditions of the patients were evaluated based on the modified Brodsky's criteria.RESULTS The average VAS score significantly decreased after the surgery(from 7.4 ± 0.8 to 3.3 ± 0.8, P < 0.001). The average Cobb angle correction was 14.9 degrees. The neurologic status was significantly improved after the surgery(P = 0.003). One patient experienced refractory infection and underwent additional debridement. Eighteen patients achieved good outcome based on the modified Brodsky's criteria and significant improvement after the surgery(P < 0.001). No implant breakage orTaMC dislodgement was found during at least 24 mo of follow-up.CONCLUSION Single-stage anterior debridement and reconstruction with TaMC followed by immediate instrumentation could be an alternative method to manage the patients with spinal deformity or instability due to complicated infectious spondylitis.
文摘Objective:To clarify anatomy-related factors in the cervical spine with subsidence of titanium mesh cage (TMC) after one-level cervical corpectomy and fusion. The effect of the cervical posture, segmental curvature and endplate gradient on this postoperative phenomenon was evaluated. Methods: Between August 2003 and March 2006, a total of the 236 patients underwent one-level corpectomy and TMC fusion. Their radiological examinations were reviewed and clinical outcomes evaluated. Results: In the patients who were followed up for 12 months, TMC subsidence occurred in 54 (28.6%) cases. C6 corpectomy had a significant higher risk (26/60, 43.3%) for TMC subsidence, which was correlated with the variation of the gradient of the vertebral endplates against cervical levels. Although the clinical outcome was comparable with those in the literature, the patients may have subsidence-related problems such as neck-shoulder pain, neurological deterioration and instrumental failure. Conclusion: To decrease the incidence of subsidence, TMC design should be optimized to be in line with anatomic characteristics of the cervical spine.
文摘目的评价新型解剖型钛笼(AA-TMC)在单节段及双节段颈前路椎体次全切植骨融合术(ACCF)中与终板的贴合程度以及对手术节段颈椎生理序列的重建效果。方法使用12具颈椎尸体标本完成单节段及双节段ACCF手术,使用AA-TMC进行椎体重建。通过X线测量手术前后手术节段高度及角度以评价AA-TMC对手术节段生理序列的重建效果。同时测量术后AA-TMC与终板之间间隙大小以评价AA-TMC与终板的贴合程度。根据美国材料与实验学会F2267脊柱植入物沉陷试验标准对比AA-TMC与传统钛笼在终板支撑强度上的差异,评价AA-TMC在防止钛笼下沉方面的效果。结果单节段ACCF手术前后节段高度(23.90±2.18 mm vs 24.23±1.13 mm)及角度(11.62±2.67°vs 12.13±0.69°)之间无统计学差异(P>0.05)。双节段ACCF手术前后节段高度(42.93±3.51 mm vs 43.04±1.70 mm)及角度(15.63±5.06°vs 16.16±1.05°)之间无统计学差异(P>0.05)。AA-TMC与终上下板贴合良好,平均间隙0.37±0.3 mm及0.42±0.28 mm。相比于传统钛笼,单节段及双节段ACCF使用AA-TMC进行椎体重建可显著提高终板支撑强度(单节段ACCF:719.7±5.5 N vs 875.8±5.2 N;双节段ACCF:634.3±5.9 N vs 873±6.1 N),差异具有统计学意义(P<0.05)。结论在单节段及双节段ACCF中使用AA-TMC进行椎体重建可显著提高终板支撑强度,从而有效降低了钛笼下沉发生的可能。并且,使用AA-TMC可有效重建颈椎生理序列。
文摘[目的]评价一种新型翼形钛网在退行性颈椎病前路手术中应用的临床效果。[方法]应用该椎间融合器治疗退变性颈椎病27例,男18例,女9例;颈椎间盘突出（herniation of cervical disc,CDH）19例,后纵韧带钙化（ossification of posterior longitudinal ligament,OPLL）8例;单节段病变21例,双节段病变6例。术前均经X线及MRI排除骨折、脱位。手术方式采用椎体次全切除减压,新型翼形钛网内植骨及螺钉内固定。[结果]本组27例随访6~14个月,平均10个月,植骨融合时间平均10周,术后3、6及12个月复查X线未见钛网松动、脱出、塌陷。[结论]该翼形钛网内固定植入能提供颈椎次全切除后脊柱即时稳定性,术后可避免钛网移位,塌陷、脱出。手术操作简单安全,不需取髂骨,同时减轻患者经济负担。且为弹性固定,骨融合率高。
