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Hip Pelvis. 2015 Sep;27(3):179-82. doi: 10.5371/hp.2015.27.3.179. Epub 2015 Sep 30.

Fracture of Fully-coated Femoral Stem after Primary Total Hip Arthroplasty for Nonunion of Intertrochanteric Fracture: A Case Report.

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Department of Orthopaedic Surgery, Kyung Hee University Hospital at Gangdong, Seoul, Korea.
Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Korea.


Femoral stem fracture is an uncommon reason for the failure of total hip arthroplasty, with only 16 cases of fully coated stem fractures reported to date. Here we report a case in which a fully coated primary femoral stem fracture occurred after conversion to total hip arthroplasty for the non-union of an intertrochanteric fracture of the femur. Metallurgic evaluation of the etiology and mechanism revealed that the fracture was initiated by fatigue-related failure and completed by ductile failure on the posterior side of the fracture. Considering the recent trend of treating an intertrochanteric fracture with hip arthroplasty, possible stem failure should be considered, since most patients will have at least one of the known risk factors for stem fracture.


Cementless; Fracture; Stem; Total hip arthroplasty

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