Outcomes of distraction osteogenesis for malignant bone tumors of the distal tibia
LI Xian-an
LIU Jian-fan
XU Xue-zheng
WU Hong-wei
ZHANG Yang-yang
ZHOU Zhang-zi
Abstract：Objective To evaluate outcomes of distraction osteogenesis to repair distal tibia bone defects after malignant tumor resection. Methods Six patients diagnosed as malignant bone tumors in the distal tibia were selected from November 2013 to September 2015. Three cases were of osteosarcoma, 2 cases of chondrosarcoma, 1 case of aggressive giant cell tumors of the bone ( level III ). Enneking surgical stage: I A, I B, II A and II B which was sensitive to neoadjuvant chemotherapy. Bone tumors were resected extensively from the ankle joint up to the proximal segment of the tibia with the average length of 12 cm ( range: 8 - 15 cm ) in all 6 cases. Bone cutting was performed at upper tibia 2 cm down to the epiphyseal line. All bone segments were fixed with external fixator and middle segments of the bone were distracted from the proximal to the distal gradually. Results Bone defects were all repaired successfully using this technique with limb shortening of the average of 19 mm ( range: 15 - 24 mm ). Bone healing time ranged 9 - 17 months. The average bone healing index was 1.24 months / cm. Lower limb function score according to Paley: excellent in 1 case, good in 4 cases, poor in 1 case, overall excellent and good rate 83.3% ( P >0.05 ). Conclusions Effects of distraction osteogenesis are satisfied in repairing distal tibia bone defects after malignant bone tumor resection with good lower limb functions.
Keywords：Bone neoplasmsOsteogenesisdistractionTibiaResponse evaluation criteria in solid tumors
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 127-131 )