Mohammad M Sarzaeem1, Mahmood Jabalameli1. 1. Department of Orthopedic Surgery, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences (SBUMS), Tehran, Iran.
Abstract
BACKGROUND: This is to assess one of the rare complications after total knee replacement and to assess risk factors of failure. METHODS: 11 patients with varus knee and an average age of 67 years underwent TKA between 2005 and 2013. All patients returned with a sudden sharp knee pain, disability to walk and significant decrease in ROM about 4 to 8 weeks after surgery. Radiographic examination revealed a lateral femoral condylar stress fracture. RESULTS: After analyzing the images, we found common characteristics among all patients, which might be attributable to the later fracture including varus deformity>25, femoral component lateralization, and valgus correction. CONCLUSION: Surgeons should be aware of the risk factors to consider before, during, and after surgery.
BACKGROUND: This is to assess one of the rare complications after total knee replacement and to assess risk factors of failure. METHODS: 11 patients with varus knee and an average age of 67 years underwent TKA between 2005 and 2013. All patients returned with a sudden sharp knee pain, disability to walk and significant decrease in ROM about 4 to 8 weeks after surgery. Radiographic examination revealed a lateral femoral condylar stress fracture. RESULTS: After analyzing the images, we found common characteristics among all patients, which might be attributable to the later fracture including varus deformity>25, femoral component lateralization, and valgus correction. CONCLUSION: Surgeons should be aware of the risk factors to consider before, during, and after surgery.
Entities:
Keywords:
Lateral femoral condylar fracture; Osteoporosis; Severe varus deformity; Stress fracture; Total knee arthroplasty
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