title: [Factors influencing bone mineral density around the femoral stem after cementless total hip arthroplasty].
abstract: Factors influencing bone mineral density around the femoral stem after PM cementless total hip arthroplasty were evaluated in longitudinal study of 18 hips in 18 patients who had undergone surgery due to unilateral hip osteoarthritis. Bone mineral density in the femoral neck was determined by dualenergy X-ray absorptiometry measurement performed preoperatively and in periprosthetic femoral Gruen's zones prospectively 2 weeks, 3, 6, 12 and 24 months after surgery. The concentrations of calcium, magnesium and fluoride were measured in cortical and trabecular bone samples taken from resected femoral head and neck. At 12 and 24 months after the operation the regional bone mineral density measurement showed significant, maximum decrease but after 12 months bone mineral density appeared to be stabilized. The analysis of preoperative femoral neck density and fluoride content in trabecular bone proved that osteopenia and lower fluoride concentrations correlated significantly with greater bone density decrease after total hip arthroplasty. No other factors (age, sex, weight, calcium and magnesium concentrations in bone and fluoride concentration in cortical bone) showed significant associations.
authors.affiliation: Katedra i Klinika Ortopedii i Traumatologii, Pomorska Akademia Medyczna w Szczecinie.
authors.forename: A
authors.initials: A
authors.lastname: Bohatyrewicz
authors.forename: H
authors.initials: H
authors.lastname: Mazurkiewicz
authors.forename: E
authors.initials: E
authors.lastname: Dabkowska
authors.forename: D
authors.initials: D
authors.lastname: Larysz
authors.forename: P
authors.initials: P
authors.lastname: Zietek
authors.forename: A
authors.initials: A
authors.lastname: Gusta
mesh_terms: D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001843:Bone Cements; D015519:Bone Density; D005260:Female; D005269:Femur / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000175:diagnosis; D011183:Postoperative Complications; D011446:Prospective Studies; D012720:Severity of Illness Index; D016896:Treatment Outcome
chemical_list: D001843:Bone Cements
vernacular_title: Wybrane czynniki wpływajace na gestość mineralna kości wokół trzpienia endoprotezy po bezcementowej alloplastyce stawu biodrowego.