Z Orthop Unfall 2023; 161(01): 85-91
DOI: 10.1055/a-1542-9192
Review/Übersicht

Intraoperative Fractures of the Tibia and Femur in Knee Revision Surgery

Article in several languages: English | deutsch
1   Department of Orthopaedics, Charite – Universitaetsmedizin Berlin, Germany
2   Sportklinik Erfurt, Erfurt, Germany
,
Uwe Kahl
2   Sportklinik Erfurt, Erfurt, Germany
,
Philipp von Roth
3   Knee Endoprosthetics, Sporthopaedicum, Straubing, Germany
,
Robert Hube
4   Orthopaedic Surgery, OCM Clinic Munich, Germany
› Author Affiliations

Abstract

Intra-operative fractures in knee revision surgery are relatively rare and have not been well studied. They may occur during joint exposition, removal of the prosthesis or cement, or implantation of trial or original components. The fractures affect both the metaphyseal area and diaphysis of the tibia and femur. Tibial fractures are slightly more common than femur fractures. On the femur, the medial condyle is most frequently affected, followed by the femur diaphysis. The use of non-cemented stems is associated with a greater risk of intra-operative diaphyseal fractures than that of cemented stems. Overall, women and patients with an osteopenic bone structure have a higher risk of fractures. It is common that fractures are diagnosed post-operatively. In these cases, conservative therapy may be successful, depending on the stability of the prosthesis and bones. The most common surgical fixation options are cerclages and screws, followed by stem extensions for bridging the fracture. Plate fixation or use of strut grafts are also sensible therapy options. Overall, intraoperative fractures have a high healing potential with stable and good joint function. The revision rate is still 15%, which is most often caused by peri-prosthetic infection.



Publication History

Article published online:
08 September 2021

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