Association of fracture of trapezium with Bennett'sfracture is very rare and makes reduction and stabilisation more difficult. We are reporting a rare case of Bennett's fracture with fracture of the trapezium ...Association of fracture of trapezium with Bennett'sfracture is very rare and makes reduction and stabilisation more difficult. We are reporting a rare case of Bennett's fracture with fracture of the trapezium and subluxation of the carpo-metacarpal joint(CMC) joint. The patient was a 47-year-old school teacher who fell from his motorbike on his outstretched right dominant hand. Radiographs and computed tomography showed fracture of the trapezium with subluxation of the CMC joint, associated with Bennett's fracture. Open reduction and internal fixation was carried out. Trapezium was reduced first and secured with a 2 mm diameter screw. Bennett's fracture was then reduced and fixed with two per-cutaneously placed Kirchner's wires. CMC was stabilised with percutaneous Kirchner's wires. Latest follow up at 12 mo showed a healed fracture with good reduction of the CMC joint. Clinically patient had no pain and normal extension, abduction and opposition of the thumb. QuickD ASH score was 3.9/100. Thus, fracture of trapezium associated with a Bennett's fracture is a rare injury and if ignored it may lead to poor results. This injury is more challenging to manage than an isolated Bennett's fracture as anatomical reduction of the trapezium with reduction of the first CMC is needed. Fracture of the trapezium should be fixed first as this will provide a stable base for reduction of the Bennett's fracture.展开更多
Carpo-metacarpal dislocations are rare hand injuries. They are misdiagnosed due to their non-specific clinical signs. The authors report on their experience in the management of carpometacarpal dislocations in a speci...Carpo-metacarpal dislocations are rare hand injuries. They are misdiagnosed due to their non-specific clinical signs. The authors report on their experience in the management of carpometacarpal dislocations in a specialized hand surgery center. Our study included patients received and treated in the department for a carpometacarpal dislocation. Dislocation fractures of Bennett and Rolando were excluded. The postoperative functional evaluation took place after 18 months by the DASH score. Twelve patients participated: one case of neuro-algodystrophy and one pin infection. The mean DASH functional outcome score was 1.10 at 18 months. Since carpometacarpal dislocations are rare and easily misdiagnosed, the surgeon should assume the possibility of them in patients with high-energy trauma, and imaging studies should be carefully evaluated. Pinning is an effective treatment option that provides good long-term functional results.展开更多
目的采用三维有限元数值模拟方法分析比较骨水泥棒外固定支架与交叉克氏针在力学稳定性方面的差异,为手术治疗第五掌骨颈骨折(特别是第五掌骨颈开放性骨折)提供理论依据。方法选取1名健康志愿者,采集其手腕关节的三维CT图像数据,首先利...目的采用三维有限元数值模拟方法分析比较骨水泥棒外固定支架与交叉克氏针在力学稳定性方面的差异,为手术治疗第五掌骨颈骨折(特别是第五掌骨颈开放性骨折)提供理论依据。方法选取1名健康志愿者,采集其手腕关节的三维CT图像数据,首先利用Mimics Research 21.0、Geomagic Studio 2021软件进行三维图形数据处理,在此基础上应用Solidworks 2020软件构建第五掌骨颈骨折骨水泥棒外固定支架模型(A模型)和第五掌骨颈骨折交叉克氏针固定模型(B模型)。在ANSYS Workbench 17.0中对各模型的材料属性进行赋值、划分网格,建立三维有限元模型。最后通过在第五掌骨头远端关节面进行轴向施加和第五掌骨三点弯曲实验,计算得出两种施压方式的远端骨折块的最大位移,以此评价骨水泥棒外固定支架治疗第五掌骨颈骨折的稳定性。结果(1)轴向施压时,A模型远端骨折块的最大位移、最小位移和平均位移的值大于B模型,A模型近端骨折块的最大位移、最小位移和平均位移的值小于B模型,A模型最大相对位移、最小相对位移和平均相对位移大于B模型。(2)在三点折弯给力时,A模型远端骨折块最大位移小于B模型,远端骨折块最小位移等于B模型,近端骨折块的最大位移和最小位移的均值大于B模型,A模型最大相对位移、最小相对位移和平均相对位移大于B模型。(3)与B模型相比较,A模型的总体应力、固定物应力均明显较小。结论骨水泥棒外固定支架及克氏针交叉固定在治疗第五掌骨颈骨折方面,在轴向和纵向上的位移及总位移均未超过1 mm,差异较小;但骨水泥棒外固定支架在两种施力方式中与交叉克氏针相比应力更小,提示骨水泥棒外固定支架能提供可靠的力学稳定性。展开更多
Background： To avoid the irritation of tendons and soft tissues as well as hardware-related problems, we designed an intramedullary fixation with bioabsorbable rods for the treatment of the metacarpal shaft fractures...Background： To avoid the irritation of tendons and soft tissues as well as hardware-related problems, we designed an intramedullary fixation with bioabsorbable rods for the treatment of the metacarpal shaft fractures. Methods： Five patients with nine shaft fractures of the fourth and fifth metacarpi were treated with intramedullary absorbable implants and followed up with an average of 4.2 months postoperatively. Results： At final follow-up, all patients achieved fracture union with no signs of inflammatory or subcutaneous effusion. There was no shortening, angulatory, or rotatory deformity. There was almost full active extension range of motion （ROM） of the metacarpophalangeal joints while the active flexion ROM of these joints was 80.7 ± 9.6°. hand was 94.0 ± 9.6%. X-rays showed that the arch of the second Compared with the contralateral hand, the grip strength of the injured to fifth metacarpal heads was smooth. There were no intramedullary lytic changes and soft tissue swellings. Conclusion： The intramedullary absorbable implants are a safe, simple, and practical treatment for fourth and filth metacarpal fractures with good early clinical outcomes and no significant complications.展开更多
目的探讨微型钛板跨关节固定治疗CainⅢ型钩骨骨折的临床效果。方法对2017年7月-2020年8月收治的7例CainⅢ型钩骨骨折患者采用微型钛板跨关节固定治疗。术中均采用腕掌关节背侧入路显露,骨折复位后将微型钛板跨腕掌关节放置于掌骨近端...目的探讨微型钛板跨关节固定治疗CainⅢ型钩骨骨折的临床效果。方法对2017年7月-2020年8月收治的7例CainⅢ型钩骨骨折患者采用微型钛板跨关节固定治疗。术中均采用腕掌关节背侧入路显露,骨折复位后将微型钛板跨腕掌关节放置于掌骨近端和钩骨的背侧,以固定钩骨骨折和腕掌关节脱位。术后采用Mayo腕关节评分、疼痛视觉评分(VAS)、手部握力及环小指总主动活动度(Total active motion,TAM)评价,同时定期复查腕关节X线片。结果7例患者均获8~40个月随访,平均(15±6)个月;骨折均愈合,时间为7~11周,平均(8.5±1.6)周。所有患者的内固定物均于术后5~7个月取出。末次随访,无1例发生创伤性关节炎、感染、神经损伤;有1例肌腱粘连给予热敷、锻炼后恢复。结论采用微型钛板跨关节固定治疗CainⅢ型钩骨骨折,能够解剖复位骨折,固定牢靠,有助于维持复位,术后可早期功能训练,骨折愈合及功能良好,是治疗CainⅢ型钩骨骨折有效手术方法。展开更多
文摘Association of fracture of trapezium with Bennett'sfracture is very rare and makes reduction and stabilisation more difficult. We are reporting a rare case of Bennett's fracture with fracture of the trapezium and subluxation of the carpo-metacarpal joint(CMC) joint. The patient was a 47-year-old school teacher who fell from his motorbike on his outstretched right dominant hand. Radiographs and computed tomography showed fracture of the trapezium with subluxation of the CMC joint, associated with Bennett's fracture. Open reduction and internal fixation was carried out. Trapezium was reduced first and secured with a 2 mm diameter screw. Bennett's fracture was then reduced and fixed with two per-cutaneously placed Kirchner's wires. CMC was stabilised with percutaneous Kirchner's wires. Latest follow up at 12 mo showed a healed fracture with good reduction of the CMC joint. Clinically patient had no pain and normal extension, abduction and opposition of the thumb. QuickD ASH score was 3.9/100. Thus, fracture of trapezium associated with a Bennett's fracture is a rare injury and if ignored it may lead to poor results. This injury is more challenging to manage than an isolated Bennett's fracture as anatomical reduction of the trapezium with reduction of the first CMC is needed. Fracture of the trapezium should be fixed first as this will provide a stable base for reduction of the Bennett's fracture.
文摘Carpo-metacarpal dislocations are rare hand injuries. They are misdiagnosed due to their non-specific clinical signs. The authors report on their experience in the management of carpometacarpal dislocations in a specialized hand surgery center. Our study included patients received and treated in the department for a carpometacarpal dislocation. Dislocation fractures of Bennett and Rolando were excluded. The postoperative functional evaluation took place after 18 months by the DASH score. Twelve patients participated: one case of neuro-algodystrophy and one pin infection. The mean DASH functional outcome score was 1.10 at 18 months. Since carpometacarpal dislocations are rare and easily misdiagnosed, the surgeon should assume the possibility of them in patients with high-energy trauma, and imaging studies should be carefully evaluated. Pinning is an effective treatment option that provides good long-term functional results.
文摘目的采用三维有限元数值模拟方法分析比较骨水泥棒外固定支架与交叉克氏针在力学稳定性方面的差异,为手术治疗第五掌骨颈骨折(特别是第五掌骨颈开放性骨折)提供理论依据。方法选取1名健康志愿者,采集其手腕关节的三维CT图像数据,首先利用Mimics Research 21.0、Geomagic Studio 2021软件进行三维图形数据处理,在此基础上应用Solidworks 2020软件构建第五掌骨颈骨折骨水泥棒外固定支架模型(A模型)和第五掌骨颈骨折交叉克氏针固定模型(B模型)。在ANSYS Workbench 17.0中对各模型的材料属性进行赋值、划分网格,建立三维有限元模型。最后通过在第五掌骨头远端关节面进行轴向施加和第五掌骨三点弯曲实验,计算得出两种施压方式的远端骨折块的最大位移,以此评价骨水泥棒外固定支架治疗第五掌骨颈骨折的稳定性。结果(1)轴向施压时,A模型远端骨折块的最大位移、最小位移和平均位移的值大于B模型,A模型近端骨折块的最大位移、最小位移和平均位移的值小于B模型,A模型最大相对位移、最小相对位移和平均相对位移大于B模型。(2)在三点折弯给力时,A模型远端骨折块最大位移小于B模型,远端骨折块最小位移等于B模型,近端骨折块的最大位移和最小位移的均值大于B模型,A模型最大相对位移、最小相对位移和平均相对位移大于B模型。(3)与B模型相比较,A模型的总体应力、固定物应力均明显较小。结论骨水泥棒外固定支架及克氏针交叉固定在治疗第五掌骨颈骨折方面,在轴向和纵向上的位移及总位移均未超过1 mm,差异较小;但骨水泥棒外固定支架在两种施力方式中与交叉克氏针相比应力更小,提示骨水泥棒外固定支架能提供可靠的力学稳定性。
文摘Background： To avoid the irritation of tendons and soft tissues as well as hardware-related problems, we designed an intramedullary fixation with bioabsorbable rods for the treatment of the metacarpal shaft fractures. Methods： Five patients with nine shaft fractures of the fourth and fifth metacarpi were treated with intramedullary absorbable implants and followed up with an average of 4.2 months postoperatively. Results： At final follow-up, all patients achieved fracture union with no signs of inflammatory or subcutaneous effusion. There was no shortening, angulatory, or rotatory deformity. There was almost full active extension range of motion （ROM） of the metacarpophalangeal joints while the active flexion ROM of these joints was 80.7 ± 9.6°. hand was 94.0 ± 9.6%. X-rays showed that the arch of the second Compared with the contralateral hand, the grip strength of the injured to fifth metacarpal heads was smooth. There were no intramedullary lytic changes and soft tissue swellings. Conclusion： The intramedullary absorbable implants are a safe, simple, and practical treatment for fourth and filth metacarpal fractures with good early clinical outcomes and no significant complications.
文摘目的探讨微型钛板跨关节固定治疗CainⅢ型钩骨骨折的临床效果。方法对2017年7月-2020年8月收治的7例CainⅢ型钩骨骨折患者采用微型钛板跨关节固定治疗。术中均采用腕掌关节背侧入路显露,骨折复位后将微型钛板跨腕掌关节放置于掌骨近端和钩骨的背侧,以固定钩骨骨折和腕掌关节脱位。术后采用Mayo腕关节评分、疼痛视觉评分(VAS)、手部握力及环小指总主动活动度(Total active motion,TAM)评价,同时定期复查腕关节X线片。结果7例患者均获8~40个月随访,平均(15±6)个月;骨折均愈合,时间为7~11周,平均(8.5±1.6)周。所有患者的内固定物均于术后5~7个月取出。末次随访,无1例发生创伤性关节炎、感染、神经损伤;有1例肌腱粘连给予热敷、锻炼后恢复。结论采用微型钛板跨关节固定治疗CainⅢ型钩骨骨折,能够解剖复位骨折,固定牢靠,有助于维持复位,术后可早期功能训练,骨折愈合及功能良好,是治疗CainⅢ型钩骨骨折有效手术方法。
