Injuries to bones and joints of the leg Femur

Injuries to bones and joints of the leg Femur - o Leg is...

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Injuries to bones and joints of the leg Femur Fractures of the Neck of Femur Principally in elderly patients and very common 20% of all orthopaedic bed occupancy Pose a significant mortality rate – 60% within two years Occurs due to bone weakness due to osteoporosis, diet and immobility combined with a trip, slip or fall Blood supply to the femoral head is very important and site of fracture may lead to avascular necrosis of the head of the femur Childs femoral neck has an avascular growth plate which causes healing problems Avascular necrosis will inevitably lead to death or need for replacement of the femoral head Two broad types of fractures o Intracapsular fractures – lead to avascular necrosis Subcapital – under the femoral head Transcervical – middle of the neck o Extracapsular fractures – usually unite due to blood supply Basal – at the base of the neck Intertrochanteric What happens when the neck of the femur is fractured?
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Unformatted text preview: o Leg is shorter and externally rotated due to pull of the muscles • Fixation in Intracapsular fractures o Screwed together if action is quick o Replacement of the femoral head but not the acetabulum • Fixation in Extracapsular fractures o Screwed together with extra support along femur length with a dynamic hip screw Traumatic Hip Dislocation • More common in younger people • Caused by massive forces • Needs massive forces to relocate head of femur • Must be relocated within 6 hrs to prevent: o Chrondrolysis o Avascular necrosis o Degenerative arthritis Femoral Shaft Fractures • Diaphyseal fracture o Thomas splint – immobilises leg for three months o Intramedullary nail – stabilises fracture, nail enters via piriform fossa • Distal femur fracture o Metal plate externally fixed to the bone o External fixation with screws external to the body...
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This note was uploaded on 12/04/2011 for the course ANTHRO 2000 taught by Professor Monicaoyola during the Fall '10 term at Broward College.

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Injuries to bones and joints of the leg Femur - o Leg is...

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