title: Vertebral body fracture of the lumbar spine in elderly women: more severe in osteoarthritis of the knee than in femoral neck fracture.
abstract: This study investigated bone fragility by comparing fractures of the vertebral body of the spine in elderly women receiving total knee replacement (TKR) (group 1) due to severe osteoarthritis of the knee and those with femoral neck fractures (group 2) attributable to osteoporosis. Forty-two women each were selected retrospectively for group 1 and prospectively for group 2. Patient age ranged from 64-83 years. Vertebral body fractures of the lumbar spine were significantly more severe in group 1 than in group 2 (P<.001). Patients undergoing TKR due to osteoarthritis of the knee had systemic bone fragility, which included the spine.
authors.affiliation: Department of Orthopedic Surgery, The Tokyo Metropolitan Geriatric Hospital, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kanai
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Igarashi
authors.forename: Seizo
authors.initials: S
authors.lastname: Yamamoto
mesh_terms: D015502:Absorptiometry, Photon; D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D005260:Female; D005265:Femoral Neck Fractures / Q000000981:diagnostic imaging* / Q000209:etiology; D050723:Fractures, Bone / Q000145:classification* / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D008159:Lumbar Vertebrae / Q000293:injuries*; D008875:Middle Aged; D015588:Observer Variation; D010003:Osteoarthritis / Q000150:complications*; D010024:Osteoporosis / Q000150:complications*; D011446:Prospective Studies; D012189:Retrospective Studies