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Biomedical subjects

R Vadivelu

Publications and source records attributed to R Vadivelu.

7 recordsLinked to original sources

An uncommon cause of back pain in pregnancy.

Back pain is a major cause of disability worldwide. A case of a 29 year old Caucasian woman with low back pain secondary to an uncommon benign condition called osteitis condensans ilii is presented and the literature is reviewed. Limited information in the literature combined with poor awareness across the specialty and among the primary care physicians leads to an extensive investigation and misdiagnosis of this benign condition. This report emphasis the salient features and the differential diagnosis in diagnosing and managing this rare condition.

Adult↗

Painful knee.

Explore the source record for details and available documents.

Adult↗

Non-Hodgkin's lymphoma as an unexpected diagnosis in a hip arthroplasty.

Total hip replacement is routinely performed for osteoarthritis of the hip joint. We report a case of Non-Hodgkin's lymphoma as an unexpected diagnosis after routine pathological examination of the bone block harvested during total hip replacement in an asymptomatic patient. Although controversies exist regarding the cost effectiveness of routine specimen evaluation during total hip replacement, we suggest that histological analysis of any unusual-looking surgical tissues is appropriate and should be performed in all the patients who have suspicious surgical findings. To our knowledge, this is the first case of lymphoma detected during primary total hip replacement.

Arthroplasty, Replacement, Hip↗

Mechanical testing of the wire clamping characteristics of the Fixclip internal fixation system.

Stainless steel wires (Kirschner's wires) have been used for over 60 years to fix internally a wide range of osteotomies and fractures in bones. Fixclips (Corifix, Cirencester, UK) shaped like winged washers have been used to clamp pairs of K wires of diameters ranging from 0.8 to 3.0 mm to standard orthopaedic screws and to fix bones internally in more than 400 patients. The system has proved to be biologically and mechanically very effective. This paper describes the design and some biomechanical test results of the Fixclip. Preliminary strength tests conducted using a Hounsfield Tensometer show that the pull-out force, reflecting the grip of the clip on the wire, is dependent on the wire size and, throughout the clinically relevant range, increases linearly with increasing screw torque. Changing the surface finish of the clip did not confer any advantage over the existing polished clip in terms of grip strength.

Bone Screws↗