Fixation screws of the acetabular component in hip replacement.
Explore the source record for details and available documents.
Acetabulum↗
Biomedical subjects
D G Mendes
Publications and source records attributed to D G Mendes.
Evaluation of the degree of effectiveness of biobeam low level narrow band light on the treatment of skin ulcers and delayed postoperative wound healing.
Twenty-one patients with 31 postoperative delayed open wounds resistant to conventional therapy were randomly allocated to three groups. Group 1 was treated with red low level narrow band (LLNB) light (660 nm); group 2 was treated with infrared LLNB light (940 nm); and group 3 was treated with a placebo such as the Biobeam machine (no light irradiation). Group 1 showed a significant improvement compared to groups 2 and 3 (t-test).
Aged↗
Post-irradiation femoral neuropathy. A case report.
Explore the source record for details and available documents.
Cobalt Radioisotopes↗
Histological features of the interface membrane of failed isoelastic cementless prostheses.
The interface membranes of both components from two isoelastic cementless hip arthroplasties, which were revised for aseptic loosening, were examined histologically. The membranes consisted of densely structured fibrous tissue interspersed with giant cell granulomas, sheets of histiocytes and chronic inflammatory infiltrates. The granulomas and the histiocytes contained polymeric and metallic wear products, respectively. The morphological features of these membranes were compared with those of cemented joint replacements. Apart from the deposits of acrylic cement bordered by macrophages, there were no distinctive differences between the membranes of failed cementless and cemented arthroplasties. The release and deposition of wear products, of whatever nature, are apparently responsible for the formation of exuberant interface membranes.
Connective Tissue↗
Fracture of the femur after total hip arthroplasty.
The classification and treatment of ipsilateral femur fractures after total hip arthroplasty are described on the basis of the predicted stability of the implant after the fracture. Conservative treatment was successful in most cases.
Aged↗
Bicycle spoke fracture.
Twenty-nine children were treated for bicycle spoke injury, which occurred while they were sitting behind their riding parents. Their feet were caught in between the bicycle spoke and the frame rod. Five of these children suffered supramalleolar fracture. These fractures had a similar radiographic pattern, namely a greenstick fracture of the distal end of the tibia and fibula, buckling into varus and usually also into anterior angulation. Healing of the fractures was uneventful. These injuries are preventable by rigid plastic net covers for the rear wheel of the bicycle.
Ankle Injuries↗
Conservative treatment of low velocity gunshot wounds.
A retrospective study of gunshot wounds of the extremities present 148 patients who had sufficient clinical and radiological follow-up data to assess the results. The routine treatment for this injury consisted mainly of cleansing the wound, introduction of systemic antibiotics in the emergency room followed by hospitalization. More extensive treatment and surgical debridement were done only when intraarticular or vascular injury occurred. Two patients developed infected wounds. In 6 displaced humeral shaft fractures, there were 2 non-unions and one delayed union. In 11 comminuted, displaced fractures of the femoral shaft, one non-union occurred.
Aged↗
High density polyethylene prosthetic femoral head replacemnt in the dog.
A high density polyethylene (RCH 1000) femoral head prosthesis was inserted in 5 large dogs. Periodic clinical and roentgenographic evaluations, and histopathological examination of the replaced joints as well as biomechanical evaluation of the prosthetic joints were done at intervals from 3 weeks to 15 months. HDP is NOT suitable for movable weight-bearing prosthesis articulating with cartilage or bone. Wear of the cartilage and the polyethylene occurred within a few weeks of function and became extensive proportionally to the length of use. The accumulating wear particles of HDP caused a significant foreign body granulomatous reaction which resulted in erosion of bone adjacent to the acetabulum in one hip.
Acetabulum↗
Intertrochanteric osteotomy for degenerative hip disease. Indications.
A retrospective study was carried out to determine what were the features of either success or failure of intertrochanteric osteotomy of the hip for degenerative hip disease. Seventy-three patients (78 hips) were reviewed clinically and roentgenographically with a follow-up of two to 12 years. The hips were classified into the superior, medial and intermediate types of the primary degenerative hip disease and into the dysplastic and coxa magna variety for the secondary degenerative hip disease and then further classified into Stage I and Stage II. Stage I was defined by the roentgenographic criteria common to most of the successful procedures (78%) and Stage II was defined by criteria common to the failures (77%). Each of the stages was defined for the various types of degenerative hip disease. The roentgenographic criteria for Stage I are suggested as prerequisitive for indicating intertrochanteric osteotomy for treatment of degenerative hip disease. The roentgenographic criteria for Stage II are suggested as an indication for an operative procedure other than osteotomy. The postoperative course in the successful case characteristically showed an immediate pain relief and gradual improvement in walking, motion and function over a period of at least 6 years.
Acetabulum↗