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大段同种异体骨移植在四肢恶性骨肿瘤保肢术中的应用 总被引:5,自引:0,他引:5
目的分析大段同种异体骨移植在治疗四肢恶性骨肿瘤切除后骨缺损中的疗效。方法 :对 130例四肢骨肿瘤 ,切除范围以Enneking分期为原则 :异体骨移植术式分 :1/ 4关节、1/ 2关节、部分骨干、全骨段、全骨段 人工假体、1/ 2关节 自体带血管骨瓣 ;内固定分 :钢板 螺丝钉、螺丝钉、普通髓内钉、带锁髓内钉 ;疗效按Mankin提出的评定标准 ,将结果分 :优、良、中、差四等 ,差为不满意。结果 :随访 6~ 15 6个月 ,本组治疗满意率为 6 3.8% ,主要并发症是感染、骨折、骨不愈合 ,其发生率 39.2 % ,保肢率 76 .3%。结论 :大段同种异体骨移植 ,在治疗四肢恶性骨肿瘤切除后骨缺损方面 ,不失为一种有效可行的方法。其并发症发生与肿瘤外科分期、是否化疗、移植骨大小、受骨区软组织条件好坏、内固定各类有关。 相似文献
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目的:骨髓间充质干细胞(mesenchymalstemcellsMSCs)培养大多集中在动物,探讨人MSCs的优化培养方法,为组织工程临床应用奠定基础。方法:手术切取患者骨松质3mm×3mm×3mm,在含血清培养基内用剪刀将其剪为1mm×1mm×1mm大小,然后用注射器冲洗;抽取患者骨髓5mL。分别用贴壁法和密度梯度离心法原代培养。比较不同培养方法MSCs的生长情况。对各组传代细胞用化学药物进行成骨诱导培养,并检测成骨细胞表型。结果:手术切取患者骨松质和抽取患者骨髓均能培养出骨髓间充质干细胞,切取骨松质获取的细胞数量大,5m骨髓培养细胞数平均可达L2.43×108,3mm×3mm×3mm骨松质可以获取MSCs的平均细胞数可达9.57×108;全骨髓法细胞贴壁时间早两三天,密度梯度离心法细胞均一性好,利于纯化。结论:临床组织工程中可以根据情况和需要采用不同方法获取MSCs。 相似文献
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内锁髓内钉治疗胫骨中下段骨折 总被引:1,自引:0,他引:1
自1997年8月~2000年12月应用内锁髓内钉治疗胫骨中下段骨折28例,疗效满意。报告如下。1 临床资料1.1 一般资料 28例中,男23例,女5例。年龄18~67岁,平均35.6岁。其中6例并存其他部位的骨折或者脏器损伤,5例伴有严重的皮肤软组织缺损。骨折情况按Gustilo 相似文献
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Treatment of tibial defect and bone nonunion with limb shortening with external fixator and reconstituted bone xenograft 总被引:6,自引:0,他引:6
Objective: To explore the effect of external fixator and reconstituted bone xenograft (RBX) in the treatment of tibial bone defect, tibial bone nonunion and congenital pseudarthrosis of the tibia with limb shortening. Methods : Twenty patients ( 13 males and 7 females)with tibial bone defect, tibial bone nonunion or congenital pseudarthrosis of the tibia with limb shortening were treated with external fixation, Two kinds of external fixators were used: a half ring sulcated external fixator used in 13 patients and a combined external fixator in 7 patients.Foot-drop was corrected at the same time with external fixation in 4 patients. The shortened length of the tibia was in the range of 2-9 cm, with an average of 4.8 cm. For bone grafting, RBX was used in 12 patients, autogenous ilium was used in 3 patients and autogenous fibula was implanted as a bone plug into the medullary canal in 1 case,and no bone graft was used in 4 patients. Results: All the 20 patients were followed-up for 8 months to 7 years, averaging 51 months. Satisfactory function of the affected extremities was obtained. All the shortened extremities were lengthened to the expected length. For all the lengthening area and the fracture sites,bone union was obtained at the last. The average healing time of 12 patients treated with RBX was 4.8 months. Conclusions: Both the half ring sulcated external fixator and the combined external fixator have the advantages of small trauma, simple operation, elastic fixation without stress shielding and non-limitation from local soft tissue conditions, and there is satisfactory functional recovery of affected extremities in the treatment of tibial bone defects, tibial bone nonunion and congenital pseudarthrosis of the tibia combined with limb shortening.RBX has good biocompatibility and does not cause immunological rejections. It can also be safely used in treatment of bone nonunion and has reliable effect to promote bone healing. 相似文献
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目的探索腰椎间盘突出症并发腰骶管其他疾病的漏诊和误诊原因,提出合理的诊治方法。方法分析1996年3月至2001年10月1571例腰椎间盘突出患者的临床资料,共发现6例腰椎间盘突出患者并发有腰骶管其他疾病,其中漏诊2例,误诊1例。结果6例患者均以腰椎间盘突出收入院,其中合并神经根脓肿者1例,合并神经鞘瘤者2例,合并骶管囊肿者3例。均经CT和MRI检查得以确诊(1例例外)。6例患者均在摘除突出的椎间盘的同时或以后,处理了并发的其他疾病。结论CT及MRI检查是正确诊断腰椎间盘突出并发腰骶管其他疾病的有力手段;同时处理突出的髓核和并发的其他疾病能收到较好的疗效。 相似文献
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对15具T_9—L_5段尸体脊椎标本的推弓根进行了实体及X线片形态学测量.测量内容包括:椎弓根高、椎弓根宽、椎弓根后缘皮质与前缘皮质的距离及椎弓根轴线与矢状面夹角.结果提示:临床应用椎弓根螺钉固定时,应选择合适的螺钉,选准进钉点,并注意进钉方向及深度. 相似文献
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