A retrospective multi-centre study was carried out in order to compare outcomes between cemented and uncemented total hip arthoplasties (THA). A quantitative orthopaedic outcome assessment scoring system was devised in order to relate functional outcome to a numerical score, to allow comparison between treatments and amongst centres. The system combined a radiographic score and a clinical score...

BACKGROUND Radiographic evaluation has a prominent place in the follow-up of long-term results of uncemented total hip arthroplasty (THA). The most prominent scale reported in studies is the Engh Grading Scale, but there is a lack of literature on the reliability of the scale. METHODS We evaluated intra- and interrater reliability of the Engh Grading System for uncemented THA using 26 follow-...

Accuracy and run-time play an important role in medical diagnostics and research as well as in the field of neuroscience. In Electroencephalography (EEG) source reconstruction, a current distribution in the human brain is reconstructed noninvasively from measured potentials at the head surface (the EEG inverse problem). Numerical modeling techniques are used to simulate head surface potentials ...

INTRODUCTION The purpose of this study was to describe a new type of proximal periprosthetic fracture occurring within the first six weeks after total hip arthroplasty and to analyse possible causes of a rising incidence. MATERIAL AND METHODS Patient files and radiographs from 2,408 uncemented hip replacements were analysed and patients with a periprosthetic split fracture reaching from the c...

BACKGROUND AND PURPOSE There is no consensus on the best rehabilitation regime after uncemented total hip arthroplasty. Theoretically, bone ingrowth into the implant should benefit from initial partial weight bearing. We investigated whether the degree of postoperative weight bearing influences the periprosthetic bone mineral density (BMD) and/or the stability of the CLS stem. PATIENTS AND ME...

BACKGROUND AND PURPOSE Whether or not uncemented total hip arthroplasty (THA) can achieve durable fixation of implants to bone in patients on chronic hemodialysis is unknown. We analyzed the 2-13-year clinical outcomes of cementless THA in patients with end-stage renal diseases who were maintained on long-term hemodialysis. PATIENTS AND METHODS We reviewed the outcome of 23 consecutive unceme...

Radiological changes and differences between cemented and uncemented components of Grammont reverse shoulder arthroplasties (DePuy) were analysed at a mean follow-up of 9.6 years (8 to 12). Of 122 reverse shoulder arthroplasties implanted in five shoulder centres between 1993 and 2000, a total of 68 (65 patients) were available for study. The indications for reversed shoulder arthroplasty were ...

Fifteen adult cases of uncemented total hip replacement were assessed clinically (by Harris Hip Score) and radiologically by serial radiographs and CT scan. In the postoperative Harris Hip Score the neck of femur groups and the arthritic hip groups had comparable results and uncemented total hip replacement gives acceptable results in otherwise disabling condition of hip. Prospective evaluation...

BACKGROUND AND PURPOSE Even small design modifications of uncemented hip stems may alter the postoperative 3-D migration pattern. The Furlong Active is an uncemented femoral stem which, in terms of design, is based on its precursor-the well-proven Furlong HAC-but has undergone several design changes. The collar has been removed on the Active stem along with the lateral fin; it is shorter and ha...

OBJECTIVES Orthopaedic surgeons use stems in revision knee surgery to obtain stability when metaphyseal bone is missing. No consensus exists regarding stem size or method of fixation. This in vitro study investigated the influence of stem length and method of fixation on the pattern and level of relative motion at the bone-implant interface at a range of functional flexion angles. METHODS A c...