Gerhardt Ritter

Learn More
Total hip replacement is often recommended for the treatment of femoral neck fractures in elderly patients. A less invasive approach with shorter operating time is the replacement of the femoral head only, leaving the acetabular cartilage in situ. Hemiarthroplastic hip replacement using a metallic head prosthesis was not successful in the past, because(More)
For the clarification of pulmonary impairment after medullary nailing of femoral fractures, the intramedullary pressure in the femoral cavity during the operative procedure was investigated. In addition, an intraoperative transoesophageal echocardiography was performed which revealed two phenomena occurring once the intramedullary pressure had increased:(More)
The new antidiabetic agent (-)-BM 13.0913.Na (BM) was administered to 12-week-old lean and obese Zucker rats, an animal model of insulin resistance, at a daily dose of 50 mg/kg for 14 days. Hyperinsulinemic-euglycemic clamps were performed on treated and untreated lean and obese Zucker rats. Basal hepatic glucose production (HGP) rates were similar in lean(More)
Rotational deformities are common complications following fractures of the femoral shaft. Computed tomography for determination of the anteversion angle of the femoral neck has proved to be the most suitable way of quantifying rotational faults. Out of our inpatient collective, 45 patients who had undergone interlocking intramedullary nailing of the femur(More)
Circulatory and respiratory reactions during the implantation of joint endoprostheses have been observed for years. The components of the bone cements used for anchoring (methyl methacrylate monomer) or the outpour of bone marrow substances from the affected bone marrow cavity are thought to be chiefly responsible for these effects. However, our previous(More)
Only exceptionally medullary nailing is indicated for comminuted and multifragment fractures of the femoral shaft. The treatment of such fractures by plates is problematic due to additional to damage to parts of the bone. For this reason we do the nailing, because by this technique the bone fragments are not denuded. The induction of callus that appears ten(More)
The effect of bystander cardiopulmonary resuscitation (CPR) was studied in 2142 emergency medical service (EMS) cardiac arrest runs. When bystander CPR was administered to cardiac arrest victims, 22.9% of the victims survived until they were admitted to the hospital and 11.9% were discharged alive. In comparison, the statistics for cardiac arrest victims(More)