Why the study?
Does hip joint tamponade to 250 mm Hg for 6 hours alter the regional reperfusion pattern of the immature femoral head in pigs?
Population
15 immature Danish landrace pigs of both genders, weighing 46-50 kg, and 100 days of age
Comparison
Unilateral intraarticular hip joint pressure… vs Contralateral hip and 4 control pigs without hip…
Design
Preclinical, 11 animals were randomly chosen as an experimental group, and 4…
Follow-up
4 hours after pressure release
Authors
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Tamponade may leave some immature epiphyses ischemic after reperfusion; leaves open translation to pediatric hip tamponade risks or AVN prevention.
Does hip joint tamponade to 250 mm Hg for 6 hours alter the regional reperfusion pattern of the immature femoral head in pigs?
Hip joint tamponade above arterial pressure for 6 hours causes global ischemia in the immature porcine femoral head, with reperfusion generally returning to baseline levels, though irreversible ischemia can occur.
Drescher et al. (1999) studied this question.
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