A comparison of cementless acetabular components of the same design: spiked versus supplemental screws

Archibeck, Michael J.; Showalter, Dean; Kavanaugh, Timothy S; Camarata, David; White, Richard E.

doi:10.1016/s0883-5403(03)00297-3

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The results of this series confirm previous reports of equivalent results of primary THA performed with porous-coated hemispheric acetabular components inserted with a 2 mm underreamed press-fit technique with and without screw-fixation [8-10,12,13,27]. …”

Section: Discussionsupporting

confidence: 88%

“…Opponents argue that screws are not only unnecessary but can be deleterious, encouraging complications such as osteolysis and aseptic loosening [26]. Recent data in large cohorts of patients show equivalent results following primary THA performed with and without screw fixation [6,8-10,12,13,27]. From the biomechanical point of view, especially those screws which are not in line with the weight bearing zone of the acetabulum such as screw fixation oft the ischium or pubis are not indicated [6].…”

Section: Discussionmentioning

confidence: 99%

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Migration pattern of cementless press fit cups in the presence of stabilizing screws in total hip arthroplasty

et al. 2011

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The aim of this study was to evaluate the initial acetabular implant stability and late acetabular implant migration in press fit cups combined with screw fixation of the acetabular component in order to answer the question whether screws are necessary for the fixation of the acetabular component in cementless primary total hip arthroplasty. One hundred and seven hips were available for follow-up after primary THA using a cementless, porous-coated acetabular component. A total of 631 standardized radiographs were analyzed digitally by the "single-film-x-ray-analysis" method (EBRA). One hundred 'and one (94.4%) acetabular components did not show significant migration of more than 1 mm. Six (5.6%) implants showed migration of more than 1 mm. Statistical analysis did not reveal preoperative patterns that would identify predictors for future migration. Our findings suggest that the use of screw fixation for cementless porous- coated acetabular components for primary THA does not prevent cup migration.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Migration pattern of cementless press fit cups in the presence of stabilizing screws in total hip arthroplasty

et al. 2011

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“…There are, however, disadvantages associated with these. The main concern is that of inadequate early stability with cup loosening and disengagement [4]. Screws have been shown to augment the initial stability of the pressfit cup [5][6][7].…”

mentioning

confidence: 99%