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Biomedical subjects

K Bose

Publications and source records attributed to K Bose.

102 records · Page 6Linked to original sources
PubMed1975

Performance of bk amputees using ptb prostheses.

A below-knee amputee is generally known to achieve a close-to-normal performance level, with the patellar-tendon-bearing method of stump fitting. This was confirmed by an ergonomic investigation on ten below-knee amputees, fitted with PTB prostheses. The test group subjects were given two static tests, two dynamic tests and one exercise tolerance test, during which their oxygen consumptions, pulmonary ventilations, energy expenditures and peak heart rates were measured. The performance of the test subjects were compared with that of a control group consisting of sixteen normal, healthy, individuals. The percentage increases in the values of the biomechanical parameters of the test subjects, over those of the control group, were found to be justified and thus natural to the below-knee amputee-PTB prosthesis system. The ergonomic study has not yielded information regarding the biomechanical efficacy of the PTB prosthesis, but it has also shown that the amputees fitted with such prostheses can take up, without any undue extra effort and metabolic cost, industrial occupations of the moderately heavy kind.

Adolescent↗
PubMedDate not supplied

Age and sex variations in adiposity and central fat distribution among elderly Bengalee Hindus of Calcutta, India.

BACKGROUND: Although a sizeable portion of India's population (13%, over 110 million) is elderly (aged > 55 years) very little information exists on their levels of adiposity and central body fat distribution. AIM: The present study seeks to investigate age and sex variations in adiposity and central fat distribution among urban elderly Bengalee men and women. SUBJECTS AND METHODS: A cross-sectional study of 410 (210 men and 200 women) elderly (> 55 years) urban Bengalee Hindu individuals resident in Calcutta, India, was undertaken utilizing various measures of adiposity and central fat distribution. RESULTS: There existed significant sex differences in various anthropometric variables and indices. Age had significant negative association with most variables and indices in both sexes. In general, the associations were much stronger in men. Regression analysis demonstrated that age had significant negative effect on height, sitting height (SH), weight, body mass index (BMI), minimum waist (MWC), maximum hip (MHC) and mid upper arm (MUAC) circumferences and triceps skinfold (TSF), in both sexes. Age also had significant negative impact on conicity index (CI) in men. CONCLUSIONS: The present investigation revealed that there is a significant inverse age trend in adiposity among urban elderly Bengalee Hindus. Moreover, there existed sex differences in the effect of age on various anthropometric measures.

Adipose Tissue↗
PubMedDate not supplied

Conicity index and waist-hip ratio and their relationship with total cholesterol and blood pressure in middle-aged European and migrant Pakistani men.

A comparative study of abdominal adiposity, total cholesterol (TC), systolic (SBP) and diastolic blood pressure (DBP) in middle-aged European (n = 262) and mainly migrant Pakistani (n = 100) men of Mirpuri (Kashmiri) origin found no significant ethnic difference in mean body mass index (BMI), waist-hip ratio (WHR) and conicity index (CI). However, Pakistanis had significantly lower mean TC (p < 0.0001) and SBP (p < 0.005) but significantly higher mean (p < 0.05) DBP. Correlations of WHR and CI with age, BMI, TC, SBP and DBP were not significantly different within and between the two ethnic groups. However, multiple regression analysis revealed that Pakistanis had significantly lower cholesterol and systolic blood pressure for any given CI or WHR but no ethnic difference was observed for diastolic blood pressure. There is no evidence from this study that CI shows any advantage over WHR, as a surrogate for abdominal adiposity, in cross-sectional epidemiological investigation of risk factors for coronary heart disease (CHD) in ethnic groups like South Asians.

Adult↗
PubMedDate not supplied

Nerve root canals of the lumbar spine.

The nerve root canal is an essential part of the spinal canal. Though it is an appendage of the spinal canal, the nerve root canal, like the inguinal canal, has its own anatomical boundaries and relationships. A knowledge of its anatomy is necessary in the understanding and treatment of low back pain.

Adult↗
PubMedDate not supplied

A comparative study of different methods of tendon lengthening: an experimental study in rabbits.

Three different techniques of tendon lengthening--Z-lengthening, intramuscular lengthening, and tenotomy--were studied in rabbits. The cut tendon ends were marked with radioopaque sutures. The repair process was similar with all three techniques, with healing being completed by 6 weeks. With intramuscular lengthening, the gap distance remained constant throughout the experiment, whether immobilization was used or not. Thus, immobilization is not necessary with this technique. In contrast, with tenotomy the gap distance increased significantly when immobilization was not used. However, with immobilization the distance remained constant throughout the experiment. Immobilization is necessary after tenotomy to prevent undue lengthening of the tendon.

Animals↗
PubMedDate not supplied

Surgical correction of muscular torticollis in the older child.

Thirty-three children between 6 and 16 years of age who were treated for muscular torticollis were followed up from 2 to 10.5 years after surgery. All patients had a distal open release of the sternocleidomastoid muscle. Preoperative and postoperative assessment by a rigid scoring system showed that all patients improved in terms of function as well as cosmesis. Children less than 12 years of age showed the most improvement, with 71% excellent and good results. Late release of the sternomastoid in muscular torticollis can, therefore, give acceptable results.

Adolescent↗
PubMedDate not supplied

Conservative and surgical treatment of clubfoot.

One hundred twenty-four patients (174 feet) were treated for clubfoot deformity, with an average follow-up of 7 years. All patients were initially treated by manipulation and serial casting. Early soft tissue surgeries were performed for resistant cases (73 feet). In 33 feet with residual hindfoot deformity only, posterior release was performed with 85% good results. In the remainder, where there was forefoot as well as hindfoot deformity, full posteromedial release was necessary, giving good results in 90% of cases. All clubfeet should initially be treated conservatively. However, resistant cases should have early surgery, with the extent of surgery performed being determined by the type of residual deformity present.

Casts, Surgical↗
PubMedDate not supplied

Management of partial growth arrest: physis, fat, or silastic?

A rabbit model was developed for the study of partial growth arrest and its correction by epiphysiolysis and transfer of physis, free fat, or silastic. Growth arrest involved half of the proximal tibial physis. Clinical, radiologic, and histologic studies showed that a physeal graft (from iliac apophysis) was superior to silastic in terms of correction of angular deformity as well as contribution to longitudinal growth of the tibia after resection of a large peripherally situated bone bridge. Interposition of fat yielded the poorest results.

Adipose Tissue↗
PubMedDate not supplied

Surgical management of congenital and habitual dislocation of the patella.

Twelve patients with congenital dislocation of the patella (CDP) and 23 patients with habitual dislocation of the patella (HDP) were followed for 2-15 years after surgical stabilization of the patella. The underlying pathology in both conditions was contracture of the quadriceps mechanism, which was more severe in CDP. Surgical stabilization in most cases included an extensive lateral release, medial plication, and transfer of the lateral half of the patella tendon. Lengthening of the rectus femoris tendon was required in many cases. With appropriate operative procedures, satisfactory results were achieved in 36 of the 41 knees (87.8%).

Activities of Daily Living↗
PubMedDate not supplied

Treatment of growth arrest by transfer of cultured chondrocytes into physeal defects.

Chondrocytes were cultured from cartilage harvested from the iliac apophysis and knee joints of New Zealand White (NZW) rabbits. An experimental model for growth arrest was created by excising the medial half of the proximal growth plate of the tibia of 6-week-old NZW rabbits. The cultured chondrocytes were embedded in agarose and transferred into the growth-plate defect after excision of the physis. Transfer also was performed after excision of the bony bridge in established growth arrest. In both cases, growth arrest with angular deformation of the tibia was prevented. Histologic studies confirmed the viability of the chondrocytes in the new host physis.

Animals↗