Biological reconstruction of bone defect after resection of malignant bone tumor by allograft: a single-center retrospective cohort study

被引:4
作者
Liu, Qing [1 ,2 ]
Long, Feng [1 ,2 ]
Zhang, Can [1 ,2 ]
Liu, Yupeng [1 ,2 ]
He, Hongbo [1 ,2 ]
Luo, Wei [1 ,2 ]
机构
[1] Cent South Univ, Xiangya Hosp, Dept Orthopaed, 87Th Xiangya Rd, Changsha 410008, Hunan, Peoples R China
[2] Xiangya Hosp, Natl Clin Res Ctr Geriatr Disorders, Changsha 410008, Hunan, Peoples R China
基金
中国博士后科学基金;
关键词
Allograft; Bone defect repair; Malignant bone tumor; Internal fixation; Bone healing; Long-bone metaphysis; INTERCALARY ALLOGRAFT; OSTEOARTICULAR ALLOGRAFTS; LOWER-EXTREMITY; MASSIVE ALLOGRAFTS; SURGICAL-TREATMENT; PROXIMAL TIBIA; LIMB SALVAGE; CHILDREN; SARCOMA; OSTEOSARCOMA;
D O I
10.1186/s12957-023-03121-7
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
BackgroundAllograft reconstruction following the resection of malignant bone tumors is associated with high rates of complications and failures. This study aimed to evaluate the efficacy and current problems of allograft reconstruction techniques to optimize treatment strategies at our center.Materials and methodsThirty-eight cases (16 men and 22 women), who were diagnosed with malignant bone tumors and had undergone allograft reconstruction, were recruited. Allograft was fixed by intramedullary nail, single steel plate, double plate, and intramedullary nail combined plate in 2, 4, 17, and 15 cases, respectively. Allograft union, local recurrence, and complications were assessed with clinical and radiological tests. Tumor grade was assessed using the Enneking staging of malignant bone tumors. Functional prognosis was evaluated by the Musculoskeletal Tumor Society (MSTS) scoring system.ResultsIntercalary and osteoarticular reconstructions were performed in 32 and 6 cases, respectively. Six patients underwent reoperation related to allograft complications, four patients had local recurrence, and three patients with allograft fracture underwent allograft removal. A total of eight host-donor junctions showed nonunion, including seven cases (18.4%) in diaphysis and one case (3.1%) in metaphysis (p < 0.01). Host rejection and secondary osteoarthritis occurred in nine and two cases, respectively. No deep infection and internal fixation device fracture occurred. The overall allograft survival rate was 81.6%. Postoperative MSTS score of patients with allograft survival was 26.8 & PLUSMN; 2.9, indicating a significant improvement as compared to their preoperative function.ConclusionsAllograft represents an excellent choice for intercalary bone defects after malignant bone tumor resection. Robust internal fixation protection across the whole length of the allograft is an important prerequisite for the survival of the allograft, while multidimensional osteotomy, intramedullary cement reinforcement, and pedicled muscle flap transfer can effectively improve the survival rate and healing rate of the allograft.
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页数:13
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