title: Intra-operative fracture in posterior-stabilised total knee arthroplasty.
abstract: OBJECTIVE
  To review records of 17 patients who sustained a tibial or femoral intra-operative fracture during primary cemented total knee arthroplasty (TKA) METHODS. Records of 1346 primary cemented TKAs using the NexGen LPS fluted tibial component performed by a single surgeon were reviewed. 12 tibial and 5 femoral intra-operative fractures occurred in 5 men and 12 women aged 54 to 83 (mean, 71.6) years. No patient had any condition that may predispose to osteoporosis.
  
  
  RESULTS
  All 12 tibial fractures occurred during hammering down of the final tibial component. They were vertical crack fractures of the anterior cortex of the medial tibial plateau with minimal displacement and did not extend beyond the tip of the tibial stem. Four of the 5 femoral fractures were avulsion fractures in the coronal plane of the medial femoral condyles and occurred during removal of the intercondylar notch. The remaining femoral fracture involved the medial cortex of the medial femoral condyle and occurred during removal of a large medial femoral condyle osteophyte. All fractures were immediately fixed with 3.5-mm partially threaded AO cancellous screws. All patients achieved bone union and good function.
  
  
  CONCLUSIONS
  Intra-operative tibial fractures are more common than femoral fractures; fixation with multiple AO screws achieves good outcome.
authors: Monash Health, Melbourne, VIC, Australia.
authors: Alex H F
authors: AH
authors: Pun
authors: Department of Surgery, Medical Faculty, University of Queensland, Brisbane, QLD, Australia.
authors: Wai-Ki
authors: WK
authors: Pun
authors: Department of Imaging, St Andrew's & St Vincent's Hospitals, Toowoomba, QLD, Australia.
authors: Peter
authors: P
authors: Storey
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects*; D001863:Bone Screws; D005260:Female; D005264:Femoral Fractures / Q000209:etiology* / Q000601:surgery; D005593:Fracture Fixation, Internal / Q000379:methods*; D006801:Humans; D007431:Intraoperative Complications; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery*; D013978:Tibial Fractures / Q000209:etiology* / Q000601:surgery
keywords: arthroplasty, replacement, knee; intraoperative complications