Cup Fixation Research Articles

In vitro experiments with an injection technique for cup fixation in total hip arthroplasty.

A new technique has been developed to position the cup rigidly into the acetabulum during total hip joint replacement. After positioning the flanged cup on the acetabulum by means of screws, a low-viscosity cement is injected through a hole in the rim of the cup. A comparison with the standard cementing technique was made on the basis of in vitro experiments. For this purpose a mold was constructed to produce castings simulating the human acetabulum. The distribution of the cement, the pressure developed in the acetabulum, and the penetration of the cement are compared for the two cementing techniques.

Acetabular reinforcement in total hip replacement.

In 21 cases of severe secondary protrusio acetabuli with extensive or total destruction of the acetabular cortical structures, the double anchorage of conventional polyethylene cups with nine Müller acetabular reinforcement rings and 12 Burch-Schneider anti-protrusio reinforcement cages was carried out. They were applied in combination with reconstructive surgery of cancellous bone in three primary total hip replacements and in 18 revision operations for loosened acetabular cups following total arthroplasties. Indication for and technique of the acetabular reinforcement are described. The radiological and clinical results in 21 patients followed up were satisfactory. They confirm the efficiency of these screw-fixed reinforcement implants for the solid fixation of the plastic cup in patients with extreme acetabular deficiencies.

The effects of surgical preparation on acetabular cup fixation

The effects of surgical preparation on acetabular cup fixation

Total Hip Replacement Using The ???Brunswik-System???

This is a report of 1,350 total hip replacements using the dorsolateral approach normally without resection of the major trochanter. Preparation of the acetabulum is done by motor driven reamers, fixation of high density polyethylene cup and special design of 38 or 35 mm head is done with Surgical Simplex. To each charge of bone cement, 1, 0 g Erycinum and 3 Mega Colistin for prophylactic reason has been added since December 1971.