Avascular Necrosis after Hip Dislocation
- Frx Dislocations of the Hip
- Avascular Necrosis of the Femoral Head
- overall incidence between 5-40%;
- if reduction is performed w/in 6 hours, incidence of AVN will be less than 10%;
- in the study by McKee, et al (1998), the occurance of AVN was 26% with a mean time to reduction of 15.3 hours;
- time after dislocation when the dx of of AVN is variable;
- AVN occurs 2-5 yrs after posterior dislocation of the hip;
- typically, period of 3-4 months is required following dislocation before sufficient atrophy is present in surrounding bone to
contrast living and dead bone on x-ray for the purpose of dx
- Systematic Review and Meta-Analysis of Avascular Necrosis and Posttraumatic Arthritis After Traumatic Hip Dislocation.
- Irreducible fracture dislocation of the hip: a severe injury with a poor prognosis.
- Changes on magnetic resonance images after traumatic hip dislocation.
- Distinguishing avascular necrosis from segmental impaction of the femoral head following an acetabular fracture: preliminary report.
- Magnetic resonance imaging in traumatic posterior hip dislocation.
Original Text by Clifford R. Wheeless, III, MD.
Last updated by Data Trace Staff on Sunday, March 6, 2016 8:07 am