An analysis of screw fixation of the femoral component in cementless hip arthroplasty

Jeffrey W. Martin; Hajime Sugiyama; Aric D. Kaiser; James Van Hoech; Leo A. Whiteside

doi:10.1016/S0883-5403(08)80020-4

An analysis of screw fixation of the femoral component in cementless hip arthroplasty

Jeffrey W. Martin, Hajime Sugiyama, Aric D. Kaiser, James Van Hoech, Leo A. Whiteside

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A cementless hip stem that allows screw fixation of the collar to cortical bone in the calcar region was found to achieve enhanced rotational stability when implanted in preserved cadaveric human femora. Although the implants with screws showed less tendency for subsidence than the implants without screws, rotational micromotion was not found to be statistically different under light loading conditions. When implanted in composite bone, the addition of screws in the configuration tested was associated with significant metal-on-metal wear during combined compression and rotational cyclic loading. This finding is of concern due to potential wear particle toxicity and possible lowered fatigue life of the prosthesis. Therefore, specific design changes are recommended.

Original language	English
Pages (from-to)	S15-S20
Journal	Journal of Arthroplasty
Volume	5
DOIs	https://doi.org/10.1016/S0883-5403(08)80020-4
State	Published - Jan 1 1990
Externally published	Yes

Keywords

cementless hip arthroplasty
rotational loading
straight-stemmed femoral component

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10.1016/S0883-5403(08)80020-4

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title = "An analysis of screw fixation of the femoral component in cementless hip arthroplasty",

abstract = "A cementless hip stem that allows screw fixation of the collar to cortical bone in the calcar region was found to achieve enhanced rotational stability when implanted in preserved cadaveric human femora. Although the implants with screws showed less tendency for subsidence than the implants without screws, rotational micromotion was not found to be statistically different under light loading conditions. When implanted in composite bone, the addition of screws in the configuration tested was associated with significant metal-on-metal wear during combined compression and rotational cyclic loading. This finding is of concern due to potential wear particle toxicity and possible lowered fatigue life of the prosthesis. Therefore, specific design changes are recommended.",

keywords = "cementless hip arthroplasty, rotational loading, straight-stemmed femoral component",

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T1 - An analysis of screw fixation of the femoral component in cementless hip arthroplasty

AU - Martin, Jeffrey W.

AU - Sugiyama, Hajime

AU - Kaiser, Aric D.

AU - Van Hoech, James

AU - Whiteside, Leo A.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - A cementless hip stem that allows screw fixation of the collar to cortical bone in the calcar region was found to achieve enhanced rotational stability when implanted in preserved cadaveric human femora. Although the implants with screws showed less tendency for subsidence than the implants without screws, rotational micromotion was not found to be statistically different under light loading conditions. When implanted in composite bone, the addition of screws in the configuration tested was associated with significant metal-on-metal wear during combined compression and rotational cyclic loading. This finding is of concern due to potential wear particle toxicity and possible lowered fatigue life of the prosthesis. Therefore, specific design changes are recommended.

AB - A cementless hip stem that allows screw fixation of the collar to cortical bone in the calcar region was found to achieve enhanced rotational stability when implanted in preserved cadaveric human femora. Although the implants with screws showed less tendency for subsidence than the implants without screws, rotational micromotion was not found to be statistically different under light loading conditions. When implanted in composite bone, the addition of screws in the configuration tested was associated with significant metal-on-metal wear during combined compression and rotational cyclic loading. This finding is of concern due to potential wear particle toxicity and possible lowered fatigue life of the prosthesis. Therefore, specific design changes are recommended.

KW - cementless hip arthroplasty

KW - rotational loading

KW - straight-stemmed femoral component

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U2 - 10.1016/S0883-5403(08)80020-4

DO - 10.1016/S0883-5403(08)80020-4

M3 - Article

C2 - 2243211

AN - SCOPUS:0025065327

SN - 0883-5403

VL - 5

SP - S15-S20

JO - Journal of Arthroplasty

JF - Journal of Arthroplasty

ER -

An analysis of screw fixation of the femoral component in cementless hip arthroplasty

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Keywords

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