Weeden and Paprosky report minimum 11-year clinical and radiographic outcomes of extensively porous-coated cementless femoral stems used in 170 consecutive femoral revision THAs, testing whether diaphyseal scratch-fit fixation provides durable long-term results across varying degrees of femoral bone loss as stratified by the Paprosky classification.
When planning femoral revision THA, apply the Paprosky femoral classification preoperatively: types I, II, and IIIA reliably support extensively porous-coated stems with a 5% failure rate at over a decade, but type IIIB — where distal scratch-fit is inconsistent.
Carries a 21% failure rate and should prompt consideration of impaction allografting or an allograft-prosthetic composite instead.
Weeden and Paprosky report minimum 11-year clinical and radiographic outcomes of extensively porous-coated cementless femoral stems used in 170 consecutive femoral revision THAs, testing whether diaphyseal scratch-fit fixation provides durable long-term results across varying degrees of femoral bone loss as stratified by the Paprosky classification.
When planning femoral revision THA, apply the Paprosky femoral classification preoperatively: types I, II, and IIIA reliably support extensively porous-coated stems with a 5% failure rate at over a decade, but type IIIB — where distal scratch-fit is inconsistent.
Carries a 21% failure rate and should prompt consideration of impaction allografting or an allograft-prosthetic composite instead.