Periprosthetic Fractures of the Femur: An Analysis of 93 Fractures

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A retrospective review of 93 periprosthetic fractures and 102 periprosthetic fracture treatments showed that the type of prosthesis (cemented, ingrowth, Austin-Moore) and the presence of preexisting stress risers play a role in determining where the fractures occur. The site of fracture and the prefracture interface influence treatment of periprosthetic fractures. This study suggests that fractures associated with a loose interface, cemented or cementless, are best treated by removal of the prosthesis, reduction of the fracture, and insertion of a long stemmed prosthesis with additional fixation as needed. Treatment of a periprosthetic fracture associated with a stable prosthesis depends on the site of fracture. Fractures proximal to the tip of a fixed prosthesis usually can be treated nonoperatively or with limited internal fixation. Fractures at the tip of the prosthesis may be managed by revision or internal fixation, and fractures below the prosthesis can be managed operatively or nonoperatively.

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