[Objective]To explore the complications of tibial fracture treated with interlocking intramedullary nail.[Method]The full data of 785 cases of tibial fiacture treated with interlocking intramedullary nail were studied retrospectively.[Result]Mean follow-up period was 27 months (8~40months).There were some complications as follows: infection rate was 2.7% (21 cases),fracture nonunion 1.5% (12 cases),fracture delayed union 6.8% (53 cases),fracture malunion 0.9% (7 cases),knee pain 6.8% (53 cases),nail broken 1.4% (ll cases),locking screw broken or drop out 2.2% (17 cases).[Conclusion]Proper manipulations,strict indications,and postoperative treatment are vital to prevent the complications.

Objective To discuss the individual method and its feasibility and security of balloon kyphoplasty for the treatment of osteoporotic vertebral fractures with vertebral body wall incompetence. Methods Thirty-nine vertebral bodies were performed for kyphoplasty in 35 osteoporotic patients with vertebral compression fractures with incompetence of vertebral body wall. During operation, the cement was injected twice to avoid anterior leaking in the patients with anterior wall incompetence, while in the patients with posterior or lateral wall incompetence, the cement was injected with continuously X-ray monitoring by C-arm to prevent lateral or posterior leaking. The symptoms improvement, vertebral height restoration and complications were observed. Results All patients tolerated the procedure well with immediate relief of back pain after kyphoplasty. No symptomatic complications were found in all patients. The vertebral height had a recovery rate of 68.46%, and the mean Cobb angle was improved 8.6?. There was significant difference in Cobb angles between preoperation and postoperation (P