– See: Scaphoid Frx Menu: – scaphoid nonunions: – Discusssion: – bone grafting may be indicated for scaphoid malunion or non union; – malunion: – indicators of scaphoid malunion: classic findings are a dorsal humpback deformity and DISI deformity; – indications for bone grafting include radiographic deformity along with pain, weakness, and loss … Read more
– See: Transfusion Therapy and Blood Prod Menu – Indications for Transfusion: – Transfusion Technique: – maximum time over which blood products can be administered is 4 hrs for 1 unit because of danger of bacterial proliferation & RBC hemolysis; – if slower infusion rate is required, … Read more
– See: – Anastomosis of lower limb arteries – Arterial supply of the femur – AVN of femoral head; – AVN following femoral neck fracture – Anatomy: – extracapsular arterieal ring at the base of the femoral neck; … Read more
– See: – Total Hip Replacement Menu: – International Bipolar News – Discussion: – Gilberty & Bateman in 1974, reported use of bipolar prosthesis; – rationale was that erosion and protrusion of acetabulum would be less because motion is present between metal head & … Read more
– See: – Closed Reduction – Gravity Method of Stimson – Discussion: – pt lies supine, & assistant applies countertraction by downward pressure on the ASIS; – surgeon grasps affected limb at ankle w/ one hand, places opposite forearm behind the knee, and applies longitudinal traction in line of deformity; – adducted & internally rotated … Read more
– Anatomy: – origin: – long head: ischial tuberosity and the sacrotuberous ligament; – short head: lateral lip of linea aspera, lateral supracondyle of femur and lateral intermuscular septum; – insertion: – lateral sides of the head of the … Read more
– See: Femoral Neck Fracture – IM Nailing of Femoral Neck Fractures: – closed reduction technique: – TFN nail – references: – Vertically oriented femoral neck fractures: mechanical analysis of four fixation techniques. – Vertical shear fractures of the femoral neck. A biomechanical study. – Basicervical fractures of the proximal femur. A biomechanical … Read more
– See: – Congenital Hip Dislocation – Ortolani’s test – Discussion: – Barlow’s test identifies unstable hip that lies in the reduced position but can be passively dislocated (and hence unstable); – less than 2% of infants will have a positive Barlow test; … Read more
– See: Septic Hip – Discussion: – after age two years, most septic arthritis in children is caused by S. aureus (about 50%) or streptococci (25 %) so empiric coverage is directed toward these pathogens; – in teenagers, gonococcal arthritis now predominates and is exquisitely sensitive to penicillin; – … Read more
– See: – Osteomyelitis Child < 3yrs – Septic Hip – Bacteriology: – between ages six months and two years, hemophilus influenza type B is the main pathogen in septic arthritis (30-50 %), followed by Staph aureus and strep; – in infants and children 1 … Read more