High Rate of Failure of Allograft Reconstruction of the Extensor Mechanism After Total Knee Arthroplasty*†

Abstract

Undertensioning of the allograft reconstruction at the time of the operation and attenuation of the allograft both may have played a role in the inability of the patients to regain active extension of the knee postoperatively. Alternative techniques for reconstruction of the extensor mechanism or modifications of this technique should be considered in the treatment of this difficult problem.