Key result
Injection of saline increased intraarticular pressure to an average of 58 mm Hg, resulting in the reversible disappearance of pulsatile blood flow to the femoral head.
Why the study?
Does increased intraarticular pressure reduce blood flow to the femoral head?
Does increased intraarticular pressure reduce blood flow to the femoral head?
Increased intraarticular pressure reversibly decreases blood flow to the femoral head, supporting the clinical practice of decompressing hematomas in acute undisplaced femoral neck fractures.
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May support hematoma decompression in femoral neck fractures; hypothesis-generating from Level 5 case data.
Beck et al. (2004) studied Femoroacetabular impingement (n=11). Injection of saline into the intact intracapsular space vs. Aspiration of the joint was evaluated on Disappearance of the pulsatile signal (blood flow to the femoral head). Injection of saline increased intraarticular pressure to an average of 58 mm Hg, resulting in the reversible disappearance of pulsatile blood flow to the femoral head.
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