Author: Dr. Tushar Mehta
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Q Angle and Patellar Instability
Epidemiology of Patellar Instability : Most commonly occurs in 2nd-3rd decades of life Risk factors include Ligamentous laxity (Ehlers-Danlos syndrome) Dysplastic vastus medialis oblique (VMO) muscle Lateral displacement of patella Patella alta causes patella to not articulate with sulcus, losing its constraint effects Trochlear dysplasia Excessive lateral patellar tilt (measured in extension) Lateral femoral condyle…
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Unicameral bone cyst (UBC)
A UBC is a benign, fluid-filled, radiolucent lesion that may appear in virtually any bone, but typically, it is found in either the proximal humerus or proximal femur.A UBC often leads to thinning of adjacent areas of bone, such that fracture or pain from microfracture may occur. When such cysts are immediately adjacent to…
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Developmental Dysplasia Of Hip – Investigation of Choice ?
Plain radiographs are of limited value for diagnosis in the newborn child because the femoral head and acetabulum are largely cartilaginous. Ultrasound scanning is the investigation of choice to evaluate DDH in infants younger than six months of age and is useful to diagnose more subtle forms of the disorder when clinical exam is equivocal.…
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Orthopaedics PGI December 2012 – Distal Radius Anatomy
Q. Which of the following is(are) not correct regarding the articular surface of radius?a. radial tilt of 11 degreesd. Radial tilt of 22 degreesc. Radial inclination of 11 degreesd. Radial inclination of 22 degreese. Length 24 mm – Answer – Explanation : Radial Height : Radial height is assessed on the PA view. It is…
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OSTEOGENESIS IMPERFECTA
Which of the following pediatric congenital disorders is caused by a glycine substitution in the procollagen molecule? a. Scurvy b. Osteogenesis imperfecta c. Ochronosis d. Fibrous dysplasia OSTEOGENESIS IMPERFECTA Synonyms = Ø fragilitas ossium Ø Osteopsathyrosis Ø Lobstein’s disease Ø Vrolik’s disease Ø Brittle bone disease The disease is mainly due to defect…
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Basics are always important !
Varus is defined as : a. Distal limb pointing towards midline in the saggital plane b. Distal limb pointing towards midline in the coronal plane c. Distal limb pointing away from midline in the coronal plane d. Distal limb pointing away from midline in the coronal plane Frontal / Coronal plane: The frontal (or…
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Synovial Fluid
SYNOVIAL FLUID This topic has been asked in Physiology many times , therefore I will be mentioning the highlights here : It is an ultradialysate of plasma secreted by synovial capillaries and modified by the secretory activities of type B synoviocytes These B cells serete Hyaluronic acid – protein complex that gives the synovial fluid…
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WHAT SHOULD BE FIXED FIRST IN CRUSHING INJURY – BONE / VESSEL /SKIN !!!
Which of the following is the first one to be fixed in a crushing injury to wrist : Skin Extensor tendons Vessels Bone Answer : D Explanation : This question has been a matter of debate ?? though it is simple and clear . There are standard textbooks which mention the sequence of fixation…
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