Journal
ARCHIVES OF ORTHOPAEDIC AND TRAUMA SURGERY
Volume 121, Issue 9, Pages 505-507Publisher
SPRINGER-VERLAG
DOI: 10.1007/s004020100276
Keywords
avascular necrosis of femoral head; gamma nail; intertrochanteric fracture
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We reported on 7 cases of avascular necrosis of the femoral head after treatment of an unstable intertrochanteric fracture with the Asian Pacific gamma-nail. The incidence was about 1.16% (7 of 604) in our series. Good reduction and good implant position were achieved in all 7 men. Avascular necrosis was found about 6 months to 3 years after the initial operation, and all the fractures were solidly united at the final diagnosis. The possible etiologies were initial high energy trauma and combining basal neck fracture and iatrogenic damage of the blood supply to the femoral head.
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