Cai Liu1, Li Min1, Yong Zhou1, Yi Luo1, Fan Tang1, Minxun Lu1, Hong Duan1, Wenli Zhang1, Xinzhu Yu1, Chongqi Tu2. 1. Department of Orthopedic Surgery, West China Hospital of Sichuan University, Guoxue Road 37#, Chengdu, 610041, China. 2. Department of Orthopedic Surgery, West China Hospital of Sichuan University, Guoxue Road 37#, Chengdu, 610041, China. tuchongqibone@outlook.com.
Abstract
BACKGROUND: Uncemented allograft prosthesis composite (APC) has been applied for tumorous bone defect reconstruction in the proximal femur. However, the long-term results are rarely reported. This study aimed to evaluate long-term outcomes of uncemented APC. METHODS: Eighteen patients who received uncemented APC reconstruction in the proximal femur after tumor resections were retrospectively reviewed. RESULTS: The average resection length was 110 mm (80-154) and the average follow-up was 106.7 months (65-141). Bone union achieved in all patients with an average duration of 7.6 months (5-10). The average HHS, MSTS score and gluteus medius strength at one-year follow-up were 88.0 (80-94), 25.2 (22-28) and 4 (3-5), respectively. While at the last follow-up, the HHS, MSTS score and gluteus medius strength were 83.0 (48-100), 24.0 (10-30) and 4 (2-5), respectively. Five intraoperative fractures were fixed with cerclage wires. Two postoperative periprosthetic and prosthetic fractures received a revision. Three local recurrent patients received a secondary surgery. One of these three lung metastatic patients underwent lung metastatic tumor resection. Another two patients were diagnosed with both bone and lung metastases, only one of them underwent amputation. Two greater trochanteric fractures received no treatment. There were10 severe, 3 moderate and 5 mild allograft resorptions without treatment. CONCLUSION: Uncemented APC is a reliable reconstruction for neoplastic bone defect of the proximal femur, especially for the young patient who expected long-life expectancy and good function. Though allograft resorption and trochanteric fracture are the common complications, they seem no effect on the function.
BACKGROUND: Uncemented allograft prosthesis composite (APC) has been applied for tumorous bone defect reconstruction in the proximal femur. However, the long-term results are rarely reported. This study aimed to evaluate long-term outcomes of uncemented APC. METHODS: Eighteen patients who received uncemented APC reconstruction in the proximal femur after tumor resections were retrospectively reviewed. RESULTS: The average resection length was 110 mm (80-154) and the average follow-up was 106.7 months (65-141). Bone union achieved in all patients with an average duration of 7.6 months (5-10). The average HHS, MSTS score and gluteus medius strength at one-year follow-up were 88.0 (80-94), 25.2 (22-28) and 4 (3-5), respectively. While at the last follow-up, the HHS, MSTS score and gluteus medius strength were 83.0 (48-100), 24.0 (10-30) and 4 (2-5), respectively. Five intraoperative fractures were fixed with cerclage wires. Two postoperative periprosthetic and prosthetic fractures received a revision. Three local recurrent patients received a secondary surgery. One of these three lung metastatic patients underwent lung metastatic tumor resection. Another two patients were diagnosed with both bone and lung metastases, only one of them underwent amputation. Two greater trochanteric fractures received no treatment. There were10 severe, 3 moderate and 5 mild allograft resorptions without treatment. CONCLUSION: Uncemented APC is a reliable reconstruction for neoplastic bone defect of the proximal femur, especially for the young patient who expected long-life expectancy and good function. Though allograft resorption and trochanteric fracture are the common complications, they seem no effect on the function.
Authors: Amit Agarwal; Brandon T Larsen; Lawrence D Buadu; Jack Dunn; Russell Crawford; Jonathan Daniel; Maria C Bishop Journal: Case Rep Oncol Med Date: 2013-07-30