Complications after the reconstruction of bone defects in the knee with tumor endoprostheses
QIN Shu
DONG Yang
Abstract：Objective To retrospectively analyze the prosthesis survival and complications after custom-made tumor prosthesis replacement of the knee joint. Methods Data of 214 patients with bone tumors around knee joints who underwent custom-prosthetic replacement from January 2003 to January 2013, were retrospectively analyzed. The diagnoses were osteosarcoma ( n = 136 ), giant cell tumor ( n = 49 ), aneurysmal bone cyst ( n = 1 ), fasciculated sarcoma ( n = 3 ), malignant fibrous histiocytoma ( n = 10 ), chondrosarcoma ( n = 6 ), chondroblastoma ( n = 1 ), metastatic tumor ( n = 4 ) and other types of bone tumors ( n = 3 ). The distal femur was affected in 150 patients and the proximal tibia in 64. Results Totally 187 patients were followed up for a mean period of 47 months ( range: 16 -122 months ). Complications occurred in 47 patients: early stage infection or nonunion of wounds ( n = 15 ), peroneal palsy ( n = 3 ), late infection ( n = 5 ), aseptic loosening ( n = 15 ), breakage of the prosthesis ( n = 4 ) and periprosthetic fracture ( n = 5 ). Conclusions The complication rate of proximal tibia tumor is higher than the rate of the distal femur. Common complications of tumor prosthesis replacement of the knee joint are: aseptic loosening, infection or nonunion of wounds, peroneal palsy, late infection, aseptic loosening, breakage of prosthesis and periprosthetic fracture. Common complications of tumor prosthesis replacement of the knee joint can be treated and prevented.
Keywords：Bone neoplasmsSoft tissue neoplasmsJoint prosthesisKnee jointPostoperative complicationsKnee prosthesis
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 109-113 )