– origin: – posterior fibers: ischial tuberosity; – anterior fibers: ramus of ischium and pubis; – insertion: – from a line extending from the greater trochanter along linea aspera, medial suprcondylar line and adductor tubercle on medial condyle of femur; – action: – … Read more
– Discussion: – adductor pollicis consists of 2 parts, one of which is transverse & other oblique; – transverse head attaches to the volar crest of the 3rd metacarpal; – oblique head attaches to ligaments around capitate, trapezium, and covering of the FCR; – heads … Read more
– Discussion: – refers to a condition in which the shoulder capsule becomes contracted and thickened; – patients note a dramatic decrease in shoulder ROM; – in many cases there is spontaneous resolution after 1-3 years and motion is re-gained; – associated disorders: – cervical spondylosis – hypothyroidism – ref: Prevalence of hypothyroidism in patients … Read more
Origin: outer surface of inferior ramus of pubis; Insertion: on a line extending from lesser trochaner to linea aspera and proximal 1/4 of linea aspera; Action: adduction of the femur at the hip; lateral rotation as it adducts the thigh. some assistance to femur flexion at the hip; Nerve Supply: Obturator, L2, L3, L4; (See Innervation) Synergists: Gracilis, Pectineus
(see also: Achilles Tendonitis) Discussion ruptures typically occur after age 30, more often in people beyond middle age; rupture at musculous tendinous junction occurs most often in young people, but ruptures near the calcaneus also occur; inciting event may be related to atrophy of the soleus muscle, and commonly occur in weekend athletes; in 5-33% … Read more
– Technique Considerations: – following restoration of fracture anatomy, contour 1/3 tubular, 3.5 pelvic reconstruction, or 3.5 DCPs, to fit medial and lateral aspect of distal humerus; – the strongest bone lies along medial and lateral columns and therefore the plate screws should be placed here rather than central portion of distal end of the … Read more
(see also: Pelvic Frx; Radiographs; Work Up and Treatment) Anterior Column Frx Anterior Wall Fractures Both Column Frx Central Acebular Fracture Dislocations Classification and Column Theory Displaced Dome Fractures Heterotopic Ossification Hip Frx Fracture Dislocations of the Hip Judet View Iliofemoral Approach to the Acetabulum Ilioinguinal Approach to the Acetabulum Pediatric Acetabular Fractures Posterolateral Approach: … Read more
Discussion arises from median nerve, 5 cm above medial epicondyle; runs on volar surface of FDP and along interosseous membrane between ulna & radius; supplies FPL, lateral half of FDP, & pronator quadratus; may supply sensory branches to distal ru and carpal joints; variations: martin gruber anastomosis occurs in 10-15% of all forearms and in … Read more
Myopathic Disorders » Muscle Fiber Types » Biochemistry of Skeletal Muscle Contraction Muscle Contraction Depolarization Metabolic Sequence Calcium Regulation of Muscle Contraction Histology of Skeletal Muscle Chemistry of Skeletal Muscle Muscle Cramps » Extra cellular Matrix composed of many different molecular components, consisting mostly of collagens, proteoglycans, and glycosaminoglycans Matrix metalloproteinases enzymes that digest collagen … Read more
(see also: acetabular component) Discussion it is essential to have optimal acetabular exposure; once acetabular exposure is achieved, then note native acetabular anteversion; Exposure for hips w/ severe osteoarthritis (or w/ heavily scarred hips) it may be necessary to fully release the quadratus femoris, and a portion of the gluteal sling; because the majority of … Read more