Dear Editor, Stability of cementless hip components depends on the ingrowth of bone into porosities of the surface coating. However, clinical and radiographic examination of a stable total hip arthroplasty (ΤΗΑ) remains a challenge. The evaluation of a ΤΗΑ radiograph involves the recognition of various radiological signs that can indicate loosening of the implants. Amongst them is the Pedestal ...

OBJECTIVES The growing interest in minimally invasive surgery, together with the possibility of fitting prostheses with immediate function, have led to the development of software capable of planning and manufacturing a surgical guide and prosthesis that can be placed upon conclusion of the implant surgery step. The present study evaluates the surgical and prosthetic complications of implant tr...

The aims of the current study were to examine polyethylene particles in synovial fluid at an early stage, and to compare a newly introduced medial pivot total knee prosthesis with an established posterior-stabilized total knee prosthesis. Synovial fluid was obtained 1 year after knee arthroplasty from 17 patients with well-functioning prostheses (22 knees, 11 posterior-stabilized prostheses and...

Temporomandibular joint (TMJ) ankylosis is a refractory disease that is difficult to predictably treat. This study evaluated the prognosis of using standard alloplastic TMJ prostheses for the treatment of TMJ ankylosis in Chinese patients with severe mandibular deficiency. Patients treated from 2013 to 2015 were reviewed. The computer-aided design and manufacture (CAD/CAM) technique was used to...

The functional outcome of hemiarthroplasty in displaced proximal humeral 3- and 4-part fractures or fracture dislocations in elderly patients is frequently unpredictable and depends on the position of the prosthesis and tuberosity fixation. Reverse shoulder arthroplasty represents an alternative in elderly patients. The purpose of this study was to report the results of a retrospective series o...

PURPOSE This retrospective study investigated treatment outcomes over 10 years of a new prosthesis design in implant prosthodontics that uses a combined cement- and screw-retained principle. MATERIALS AND METHODS The clinical data of 78 implant-supported prostheses were examined. Each prosthesis incorporated at least 1 screw-retained element and 1 or more cement-retained telescopic units. One...

Acetabular revision in a total hip arthroplasty (THA) with pelvic discontinuity is uncommon and challenging. Optimal management remains controversial, particularly with graft and implant selection. Interpretation of outcomes is confounded by the heterogeneity of patterns of bone loss and the lack of long-term results in great numbers for any given choice of treatment. We report a revision THA u...

Serial radiographs are the mainstay in the longitudinal assessment of hip implants. The prosthesis, periprosthetic bone, and juxta-articular soft tissues are inspected for fracture, periosteal reaction, stress shielding, calcar resorption, osteolysis, bony remodeling, metallic debris, and heterotopic ossification. Comparison radiographs best confirm implant migration, subsidence, and aseptic lo...

Background: Revision total hip arthroplasty (rTHA) rate has increased until 12-20% in the past few decades, despite 95% success of THA approach 10 years and 80% 20 years. The most common causes rTHA are dislocation, periprosthetic fracture, aseptic loosening, joint infection. This study is aimed to describe outcome Indonesia where there limited types revision implant funding. Material Methods: ...

The survivorship oftotal hip replacements in patients operated on at the Royal National Orthopaedlc Hospital has been analysed using standard actuarial methods. Between 1%3 and 1972 173 metal-on-metal prostheses of various developmental designs were inserted. Between 1969 and 1972 248 prostheses of one design using a metal femoral component and plastic cup were used. The patients were surveyed ...