par Bori, Edoardo 
;Galbusera, F.;Innocenti, Bernardo
Référence Human Orthopaedic Biomechanics: Fundamentals, Devices and Applications, Elsevier, page (361-376)
Publication Publié, 2022-01
;Galbusera, F.;Innocenti, Bernardo Référence Human Orthopaedic Biomechanics: Fundamentals, Devices and Applications, Elsevier, page (361-376)
Publication Publié, 2022-01
Partie d'ouvrage collectif
| Résumé : | Total hip arthroplasty is currently one of the most successful and frequently performed surgical procedures. The hip replacement operation is required if the joint is affected by severe osteoarthritis, which is known to lead to pain and limitations in the joint functions, especially when the patient is not responding to conservative treatments. Nowadays, surgeons are offered a large number of implant designs to address hip pathologies and eventual revision of previous implants; the clinician, thus, has to ponder which is the optimal solution keeping into consideration the expected longevity, level of activity, and expectations of the patient; the bone dimensions and quality; and the availability and service life of the implant. In general terms, hip prostheses are composed of a femoral component and an acetabular component. The femoral component replaces the resected arthritic or necrotic head and neck, and its stem is usually made of cobalt-chromium or titanium alloys. The acetabular component occupies the reamed socket and is usually composed of the shell and liner. The acetabular liner is usually made of ultra-high-weight polyethylene, while the shell is generally metallic. Fixation is achieved either by press-fit or with the use of bone cement; hybrid fixations, in which the femoral component is cemented while the acetabular component is press-fitted, are also widely performed in clinical practice. |
