Mid-term outcomes after primary total hip arthroplasty with a cemented short stem in an elderly patient cohort.

Purpose: The main objective of this prospective study was to assess clinical, radiographic and safety mid-term outcomes after THA with a short cemented stem in an elderly patient cohort. Moreover, the study aimed at investigating the mid-term survivorship of the implant and the incidence of complications.

Methods: 96 consecutive patients (100 cases) underwent THA with a short cemented stem.

Progression of adverse local tissue reaction in ASR metal-on-metal hip arthroplasty: a longitudinal MARS-MRI study at mid- to long-term.

Background: Despite the large number of studies assessing adverse local tissue reaction (ALTR) in metal-on-metal (MoM) hip implants, there is still a lack of knowledge about the natural progression of ALTR. The aims of this study were to describe the natural course of changes in ALTR at mid- to long-term follow-up for patients treated with metal-on-metal hip arthroplasty and to determine possible risk factors associated with change in ALTR.

Methods: A total of 158 patients (158 hips), 109 MoM hip resurfacing arthroplasties (HRAs) and 49 MoM total hip arthroplasties (THAs), with 2 clinical follow-ups including MARS-MRIs were included.

A systematic literature review of the Profix in primary total knee arthroplasty.

Despite more than a decade of use, there are currently no comprehensive reviews summarising clinical results with the Profix Total Knee System in primary total knee arthroplasty. Searching the PubMed and Google Scholar databases revealed 17 potentially relevant Profix manuscripts. After author review and exclusion of studies not meeting predetermined variables, 8 manuscripts were selected.

The management of malalignment in hip revision surgery.

When facing revision surgery, the deformation of the femur must be considered for the important implications in the strategy of the operation and the choice of the implant. Deformation can occur in varus and retroversion, or both, in different degrees. For severe varus deformations a straightening osteotomy is generally indispensable and different types of distal fixations of the implant are necessary; in milder deformations other solutions are possible.

The management of version abnormalities and angular deformities in developmental dysplasia of the hip.

Implantation of a femoral stem in a dysplastic femur poses many problems. Most common abnormalities are excessive anteversion and valgus angle of the femoral neck. This makes it impossible to use conventional stems.