OBJECTIVE To determine the prevalence of heterotopic bone formation in cemented versus noncemented total hip joint replacement. DESIGN A prospective randomized controlled trial. Follow-up ranged from 2 to 6 years (mean 4 years). SETTING A university hospital. PATIENTS Two hundred and twenty-six patients who had primary or secondary osteoarthrosis of the hip were stratified according to ty...

Polyacetal resin is well known material in medical field for various applications such as for artificial heart valves and artificial hip joints. In dentistry the material among its other applications, is used for removable partial dentures. The article presents rehabilitation of a patient with maxillary defect using polyacetal resin obturator prostheses. The patient was rehabilitated 5 years ag...

Wear of polyethylene is associated with aseptic loosening of orthopaedic implants and has been observed in hip and knee prostheses and anatomical implants for the shoulder. The reversed shoulder prostheses have not been assessed as yet. We investigated the volumetric polyethylene wear of the reversed and anatomical Aequalis shoulder prostheses using a mathematical musculoskeletal model. Movemen...

Background: Cementless hip prosthesis was designed to provide biologic fixation, without the use of cement. The second generation components have shown more reliable bone ingrowths and survival rates. We are reporting a midterm result of two designs of cementless prosthesis in a unique culture with different social habits and expectations.Methods: 52 primary cementless total hip arthroplasty in...

BACKGROUND Hip replacement surgery is a popular procedure that provides predictable, long-lasting and good effects. The use of short stem prostheses helps preserve an intact medullary cavity and proximal diaphysis. It has been demonstrated that the use of short stem prostheses leads to better clinical results compared to standard stem prostheses. The study aimed to assess the migration of the s...

OBJECTIVE To compare energy cost and stride characteristics during walking with 3 different types of prostheses in a person with bilateral knee disarticulations. DESIGN Single-case study. Setting Pathokinesiology laboratory. PARTICIPANT A subject with bilateral knee disarticulations and bilateral transradial amputations secondary to meningococcemia with purpura fulminans. INTERVENTIONS No...