title: Intraosseous hypertension in osteoarthritis of the hip and ischemic necrosis of the femoral head.
abstract: Intraosseous hypertension is noted both in osteoarthritis of the hip and ischemic necrosis of the femoral head. The mean intraosseous pressure in osteoarthritis cases was 30.0 +/- 4.2 mmHg. The incidence of abnormal intraosseous pressure and positive stress tests was 39% and 26.7%, respectively. In patients with ischemic necrosis of the femoral head, intraosseous pressure was 45.6 +/- 19.4 mmHg, 79% of patients had abnormal intraosseous pressure, and 56.1% had positive stress tests. Intraosseous pressure studies indicated a statistically significant difference between patients with osteoarthritis and those with ischemic necrosis of the femoral head.
authors.affiliation: Orthopaedics Department of Orthopaedic Surgery, Chang Gung Memorial Hospital, Taipei, Taiwan.
authors.forename: W P
authors.initials: WP
authors.lastname: Ho
authors.forename: C H
authors.initials: CH
authors.lastname: Shih
authors.forename: Z L
authors.initials: ZL
authors.lastname: Lee
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005271:Femur Head Necrosis / Q000503:physiopathology*; D005272:Femur Neck / Q000503:physiopathology; D006621:Hip Joint / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D010003:Osteoarthritis / Q000503:physiopathology*; D011312:Pressure