Prevention of dislocation in total hip revision surgery using a dual mobility design.

Background: Postoperative dislocation is the commonest complication following revision total hip arthroplasty (THA). HYPOTHESIS AND TYPE OF STUDY: Dual mobility cups are supposed to reduce the risk of THA instability. The present retrospective study tested this hypothesis on revision THAs and also, assessed this design contribution to acetabular fixation longevity.

Femoral deficiency reconstruction using a hydroxyapatite-coated locked modular stem. A series of 43 total hip revisions.

Introduction: We report a continuous prospective series of patients operated on for total hip prosthesis femoral component loosening involving a bone defect. Reconstruction was performed using a hydroxyapatite-coated locked modular stem. The study's objective was to assess medium term clinical and X-ray results obtained with this original concept.

[Quality of tibial cementing in total knee arthroplasty: one or two phase cementing of the tibial and femoral implants].

Purpose Of The Study: When implanting a total knee prosthesis, the tibial component can be cemented either independently in the flexion position by maintaining an axial force on the implant, or simultaneously in extension by applying a compression force on both the tibial and femoral implants after reducing the prosthesis. The purpose of this study was to determine whether the quality of the cementing depends on the method used: independently in the flexion position, or simultaneously in the extension position.

Material And Methods: This was a prospective comparative study between two groups of 20 patients assigned alternatively to one of two study arms: Group 2 with a tibial implant cemented independently and Group 1 with a tibial implant cemented simultaneously with the femoral implant.