Pelvic reconstruction with different rod-screw systems following Enneking type I/I + IV resection: a clinical study
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Peng Lin1,2,*, Youyou Shao3,*, Huigen Lu1,4, Zhengliang Zhang1,5, Haiqing Lin1,4, Shengdong Wang1, Binghao Li1, Hengyuan Li1, Zhan Wang1, Nong Lin1, Zhaoming Ye1
1Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine/Orthopedics Research Institute of Zhejiang University, Hangzhou 310009, China
2Department of Orthopedics, Taizhou Hospital of Zhejiang Province, Linhai 317000, China
3Department of Pediatric Pulmonology, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Wenzhou 325027, China
4Department of Orthopedics, The Second Hospital of Jiaxing, Jiaxing 314000, China
5Department of Orthopedics, Dongyang People’s Hospital, Jinhua 322100, China
*These authors contributed equally to this work
Zhaoming Ye, email: firstname.lastname@example.org
Keywords: Enneking type I/I + IV, limb salvage surgery, mechanical failure, pelvic girdle reconstruction, pelvic tumor
Received: March 06, 2017 Accepted: April 03, 2017 Published: April 17, 2017
The mechanical outcomes of patients with pelvic bone tumors involving zone I or zone I + IV who received resection and different reconstructions are not clear. Therefore, the purpose of this study was to compare the outcomes of different rod-screw systems in reconstruction for these patients, and evaluate the relative risk of mechanical failure for them. We reviewed 30 patients for a mean duration of 40.4 months of follow-up (range, 13.1–162.2 months), five patients had mechanical complications. The mechanical survival rate of two-rod and four-screw (TRFS) group was significantly higher than one-rod and two-screw (ORTS) group (p = 0.000). The implant survival rate was correlated with ages (p = 0.010), younger people are more likely to fail. Thus, TRFS fixation for pelvic reconstruction after Enneking type I/I + IV resection can provide better short to long-term mechanical stability compared with ORTS fixation, the strength of ORTS fixation is not enough. In addition, biological reconstruction such as autologous bone graft is recommended for the patients who are younger or suffered from benign tumor. As for the patients who are older, with malignant tumors, underwent adjuvant radiotherapy or chemotherapy, functional reconstruction with bone cement is a good choice.
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