Primary total hip arthroplasty with a flanged, cemented all-polyethylene acetabular component

Valle, Craig J. Della; Kaplan, Kevin; Jazrawi, Adele; Ahmed, Shazia; Jaffe, William L.

doi:10.1016/j.arth.2003.08.002

Cited by 28 publications

(4 citation statements)

References 14 publications

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“…Similarly, all-polyethylene cemented cups (Havelin et al 2000, Raber et al 2001, Malchau et al 2002, Sanchez-Sotelo et al 2002, Williams et al 2002, Callaghan et al 2004, Della Valle et al 2004, Buckwalter et al 2006) served as the reference group on the acetabular side, and cemented total hip replacements (Havelin et al 2000, Malchau et al 2002, Williams et al 2002, Issack et al 2003, Callaghan et al 2004, Della Valle et al 2004, Buckwalter et al 2006) served as the reference group in analyses of total hip replacements. When the effects of age and sex on implant survival were analyzed with the Cox model, adjustment was also made for implant groups (Furnes et al 2001).…”

Section: Methodsmentioning

confidence: 99%

Results of 3,668 primary total hip replacements for primary osteoarthritis in patients under the age of 55 years

Mäkelä¹,

Eskelinen²,

Pulkkinen³

et al. 2011

Acta Orthopaedica

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Background and purposeIn a previous study based on the Finnish Arthroplasty Register, the survival of cementless stems was better than that of cemented stems in younger patients. However, the survival of cementless cups was poor due to osteolysis. In the present study, we analyzed population-based survival rates of the cemented and cementless total hip replacements in patients under the age of 55 years with primary osteoarthritis in Finland.Patients and methods3,668 implants fulfilled our inclusion criteria. The previous data included years 1980–2001, whereas the current study includes years 1987–2006. The implants were classified in 3 groups: (1) implants with a cementless, straight, proximally circumferentially porous-coated stem and a porous-coated press-fit cup (cementless group 1); (2) implants with a cementless, anatomic, proximally circumferentially porous-coated stem, with or without hydroxyapatite, and a porous-coated press-fit cup with or without hydroxyapatite (cementless group 2); and (3) a cemented stem combined with a cemented all-polyethylene cup (the cemented group). Analyses were performed separately for 2 time periods: those operated 1987–1996 and those operated 1997–2006.ResultsThe 15-year survival for any reason of cementless total hip replacement (THR) group 1 operated on 1987–1996 (62%; 95% CI: 57–67) and cementless group 2 (58%; CI: 52–66) operated on during the same time period was worse than that of cemented THRs (71%; CI: 62–80), although the difference was not statistically significant. The revision risk for aseptic loosening of cementless stem group 1 operated on 1987–1996 (0.49; CI: 0.32–0.74) was lower than that for aseptic loosening of cemented stems (p = 0.001).InterpretationExcessive wear of the polyethylene liner resulted in numerous revisions of modular cementless cups. The outcomes of total hip arthroplasty appear to have been relatively unsatisfactory for younger patients in Finland.

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Section: Methodsmentioning

confidence: 99%

Results of 3,668 primary total hip replacements for primary osteoarthritis in patients under the age of 55 years

Mäkelä¹,

Eskelinen²,

Pulkkinen³

et al. 2011

Acta Orthopaedica

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“…Results obtained from the Scandinavian arthroplasty registries (Havelin et al 2000, Puolakka et al 2001a, Malchau et al 2002) on a nation-by-nation basis and studies from single centers worldwide (Berry et al 2002, Wroblewski et al 2002, Della Valle et al 2004, Buckwalter et al 2006, Morshed et al 2007) have indicated that cemented total hip replacement is the treatment of choice for severe osteoarthritis in elderly patients. However, in a recent study based on data obtained from the Finnish Arthroplasty Register, cementless implants were found to have similar long-term survival rates as cemented implants in patients aged 55 years or more (Mäkelä et al 2008a).…”

Section: Introductionmentioning

confidence: 99%

Cementless total hip arthroplasty for primary osteoarthritis in patients aged 55 years and older

Mäkelä¹,

Eskelinen²,

Paavolainen³

et al. 2010

Acta Orthopaedica

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BackgroundCemented total hip arthroplasty has been the treatment of choice for elderly patients with osteoarthritis. We analyzed survival rates of the most common cementless designs used in this age group in Finland.Patients and methodsInclusion criteria permitted 10,310 replacements (8 designs) performed in patients aged 55 years or older to be selected for evaluation. The risk of revision of each of the 8 implants was compared with that of a group comprising 3 cemented designs as the reference (9,549 replacements). Survival analyses were performed overall and separately for 3 age cohorts: 55–64 years (6,781 replacements), 65–74 years (8,821 replacements), and 75 years or older (4,257 replacements).ResultsIn all patients aged 55 years or more, the Bi-Metric stem had a higher survival rate for aseptic loosening at 15 years than the cemented reference group: 96% (95% CI: 94–98) vs. 91% (CI: 90–92). However, the 15-year survival rates of the Bi-Metric/Press-Fit Universal (71% (CI: 67–75)) and the Anatomic Mesh/Harris-Galante II (72% (CI: 67–78)) total hip replacements were lower than that of the reference group (86% (CI: 84–87)). Information was scarce for patients aged 75 years or more.InterpretationCementless proximal porous-coated stems are a good option for elderly patients. Even though biological fixation is a reliable fixation method in THA, polyethylene wear and osteolysis remain a serious problem for cementless cup designs with unplugged screw holes and low-quality liners.

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“…Patient-specific surface models play important roles in planning and supporting various computer-assisted surgical procedures. The present technique requires only one AP pelvic x-ray radiograph, which is part of the standard diagnos-tics and treatment loop in clinical routine, 23,24 to derive a scaled, patient-specific surface model of the pelvis, which has a clear advantage over existing methods. The accuracies and the robustness that we have achieved on reconstructing surface models of 14 pelvises demonstrate great promise of our technique to be applicable in clinical settings.…”

Section: Discussionmentioning

confidence: 99%

“…The only information that we can assume to know about the radiograph is the image scale ͑mm/pixel͒ and the distance from the focal point to the imaging plane or to the film ͑we call this distance the focal-point-to-film distance͒. As long as the radiograph is acquired in a standardized way, which is performed in clinical routine, 23 both parameters can be directly retrieved from the DICOM image of the x-ray radiograph or can be estimated by performing one-time calibration. 24 Furthermore, when only a single image is used, it is well-known that the depth information and the scaling factor are correlated with each other.…”

Section: Introductionmentioning

confidence: 99%

Statistical shape model-based reconstruction of a scaled, patient-specific surface model of the pelvis from a single standard AP x-ray radiograph

Zheng

2010

Med. Phys.

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Primary total hip arthroplasty with a flanged, cemented all-polyethylene acetabular component

Cited by 28 publications

References 14 publications

Results of 3,668 primary total hip replacements for primary osteoarthritis in patients under the age of 55 years

Results of 3,668 primary total hip replacements for primary osteoarthritis in patients under the age of 55 years

Cementless total hip arthroplasty for primary osteoarthritis in patients aged 55 years and older

Statistical shape model-based reconstruction of a scaled, patient-specific surface model of the pelvis from a single standard AP x-ray radiograph

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