OBJECTIVE To determine the frequency of Osteomalacia and biochemical abnormalities in patients with hip fracture who presented at our Institution. METHODS All patients with operatively treated hip fractures (Aga Khan University Hospital, Karachi from June 1996 to June 2001) were included. The total number of patients was 168 with 59 males and 109 females. Eighty nine patients presented with i...

STUDY DESIGN A thematic review. OBJECTIVES To evaluate if physical activity enhances muscle strength, improves balance, and reduces the fall frequency and the fracture incidence. BACKGROUND One of the major medical problems of today is the increasing incidence of fragility fractures. Muscle strength and fall is one of the major determinants of a fracture. If physical activity could increase...

In this work, the bending fracture process of a stress biased piezoelectric composite actuator (PCA) under a three-point bending load have been characterized with the aid of acoustic emission (AE) monitoring. The AE signal from the monolithic PZT wafer at the maximum bending load shows the characteristics of high amplitude and long duration with a low dominant frequency band confirmed by a fast...

We investigated whether patients who underwent internal fixation for an isolated acetabular fracture were able to return to their previous sporting activities. We studied 52 consecutive patients with an isolated acetabular fracture who were operated on between January 2001 and December 2002. Their demographic details, fracture type, rehabilitation regime, outcome and complications were document...

AIM Assessment of previous vertebral fractures provides useful information to predict future fracture risk. This study aimed to determine the frequency, distribution and severity of prevalent osteoporotic vertebral fractures in postmenopausal women. MATERIAL AND METHODS Data on patient characteristics, bone densitometry values, and spine radiographs (T2-L5) were reviewed in 232 postmenopausal...

This study describes the acoustic emission (AE) activity during fracture of human femur tissue under flexural load. The sample is fixed as a cantilever and two AE broadband sensors are placed in different points of the sample, one near the fixing end and the other near the head, where a pin load is applied. The aim is to investigate if AE procedures and indices well established in engineering m...

PURPOSE To compare the fracture resistance before and after cyclic fatigue assays of ceramic crowns with customized zirconia abutments when screw retained and cemented onto implants. MATERIALS AND METHODS The sample of this study consisted of 40 ceramic crowns with zirconia infrastructure fixed onto external hexagonal implants. The crowns were distributed into two groups (n = 20): Screw-retai...

Data on fracture spacing along scan lines have been widely analyzed for the purposes of characterization. Most of these studies, however, either consider the cumulative frequency of spacing data without regard to the actual sequence of the spacing values or compute an average spacing that may not work for clustered fractures. The coefficient of variation parameter is often used to differentiate...

OBJECTIVE The risk factors for fractures are incompletely understood. An outstanding question concerns the optimal amount of dietary calcium needed to minimise the risk of fracture. DESIGN We examined the associations of dietary calcium and other nutrients with self-reported fracture risk in a prospective cohort study. Nutrient intakes were estimated using a semi-quantitative food-frequency q...