We audited the relationship between obesity and the age at which hip and knee replacement was undertaken at our centre. The database was analysed for age, the Oxford hip or knee score and the body mass index (BMI) at the time of surgery. In total, 1369 patients were studied, 1025 treated by hip replacement and 344 by knee replacement. The patients were divided into five groups based on their BM...

OBJECTIVE To determine the reasons for replacement of composite resin restorations and evaluate the association between the reasons for replacement of restorations with gender, duration of failure and different class of cavities. STUDY DESIGN Cross-sectional study. PLACE AND DURATION OF STUDY Operative Department of Fatima Jinnah Dental Hospital, Karachi, from January to May 2009. METHODO...

BACKGROUND Early outcomes after tricuspid valve replacement in young children are ill defined. The experience of the Pediatric Cardiac Care Consortium (45 centers, 1984 to 2002) was reviewed to evaluate the results of tricuspid valve replacement in children <6 years of age. METHODS AND RESULTS Ninety-seven patients who underwent initial tricuspid valve replacement are included in the present ...

Age-replacement is one of the most commonly usedmaintenance policies based on preventive action to prevent system failure. Inmany age-replacement settings, it assumed that maintenance time can beignored since short compared with operation time. However, maintenance,especially corrective maintenance, may take a non-negligible amount dueto various factors such as ordering replacement parts, equip...