Introduction: Atypical femoral fractures account for only 0.5% of femoral shaft fractures, but delayed union or non-union occurs in 50% of atypical femoral fractures accompanied by femoral lateral bowing. Such fractures are difficult to treat.
Case Report: The case was an 84-year-old woman. She was diagnosed post-operative non-union of atypical femoral fracture. We planned a revision surgery for post-operative non-union of the atypical proximal femoral fracture. A two-dimensional template was used to simulate the intramedullary nail (IMN). Due to the advanced femoral lateral bowing deformity, a mismatch with the nail was noted when the unaffected femur was used to construct the template. When the opposite side nail was used as a template, the nail was aligned with the medullary canal, and the tip of the nail coincided with the center of the medullary canal; hence, the opposite side nail was chosen. Radiographical assessments of healing of the fracture confirmed callus formation and complete bone union 3 months and 1 year after the operation, respectively.
Conclusion: We found that exchange nailing as revision surgery for post-operative non-union of atypical femoral fractures combined with an IMN on the opposite side was useful.
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| http://dx.doi.org/10.13107/jocr.2021.v11.i02.2048 | DOI Listing |
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