Deficiencies in NK cells and cytotoxic CD8+ T-cells may be associated with an increased risk of death in PAH patients. Further research is required in larger numbers of patients and to elucidate the mechanism of these findings.

Summary and conclusionsEighty patients who had undergone routine meniscectomy were divided into two groups for postoperative management. The first 40 patients were treated by the traditional method of a compression bandage with a backsplint, followed by a 10-day stay in hospital. In the other 40 patients a compression bandage was applied, reinforced by a plaster cylinder. Weight-bearing was allowed with the aid of crutches, and patients were discharged after four days in hospital.Adequate splintage and early ambulation was more convenient and comfortable for postoperative management, and no complications ensued. Less time was needed for physiotherapy, and earlier return to work and resumption of normal activities were made easier. Introduction Meniscectomy is one of the commonest orthopaedic operations, and much has been published on the mechanism of the injury