title: Effect of cement fill ratio in loosening of hip implants.
abstract: Femoral loosening is one of the most prevalent causes of revision orthopedic surgeries. Cement mantle thickness has been directly correlated with femoral loosening. If the mantle is too thick, there is an increased risk of radiolucent lines and inconsistent densities. Also, the more bone that is reamed out during the procedure can lead to instability, especially if the quality of the bone is compromised due to osteoporosis. Too thin of a mantle can lead to a higher probability for cement fracture, loosening the prosthetic even further. This study has shown that there is an ideal thickness range between 2 to 5 mm that should be kept. From radiographic images one can measure the thickness of the cement mantle showing the loosening characteristics.
authors.affiliation: Biomedical, Industrial and Human Factors Engineering, Wright State University, Dayton, OH, USA.
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Gunn
authors.forename: Dinesh
authors.initials: D
authors.lastname: Gundapaneni
authors.forename: Tarun
authors.initials: T
authors.lastname: Goswami
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects; D001843:Bone Cements; D005269:Femur / Q000473:pathology; D006621:Hip Joint / Q000601:surgery; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008422:Materials Testing; D010024:Osteoporosis / Q000503:physiopathology; D011312:Pressure; D011336:Probability; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013193:Stainless Steel; D013314:Stress, Mechanical
chemical_list: D001843:Bone Cements; D013193:Stainless Steel
keywords: cement; femoral stem; fill ratio; hip implant; loosening