Anatomic Hip Center Decreases Aseptic Loosening Rates after Total Hip Arthroplasty with Cement in Patients with Crowe Type-II Dysplasia

A Concise Follow-up Report at a Mean of Thirty-six Years

Chad D. Watts, Matthew Abdel, Arlen D. Hanssen, Mark Pagnano

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We previously reported the two to twenty-two-year results of 145 total hip arthroplasties (THAs) with cement performed from 1969 to 1980 in 117 patients with Crowe type-II dysplasia. The purpose of the present study was to update the long-term effects of a nonanatomic hip center on component loosening and aseptic revision in this cohort. Forty-nine patients (sixty hips) were alive at a mean of thirty-six years. The overall cumulative incidence of aseptic revision at thirty-five years was 32% for acetabular cups and 21% for femoral stems. Acetabular loosening was less likely with a hip center placed within the true acetabular region (TAR), <15mmsuperior to the approximate femoral head center (AFHC), <35 mm superior to the interteardrop line (ITL), or within zone 1. Femoral loosening and revision were less likely with the hip center placed <35 mm superior to the ITL and within zone 1. An anatomic hip center was associated with significantly lower loosening and aseptic revision rates for both acetabular and femoral components. The current study supports the placement of acetabular components in an anatomic position to promote long-term durability after THA with cement.

Original languageEnglish (US)
Pages (from-to)910-915
Number of pages6
JournalJournal of Bone and Joint Surgery - American Volume
Volume98
Issue number11
DOIs
StatePublished - Jun 1 2016

Fingerprint

Arthroplasty
Hip
Thigh
Incidence

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

Cite this

@article{c90df81421b34c4f8a3dc3e30b509c22,
title = "Anatomic Hip Center Decreases Aseptic Loosening Rates after Total Hip Arthroplasty with Cement in Patients with Crowe Type-II Dysplasia: A Concise Follow-up Report at a Mean of Thirty-six Years",
abstract = "We previously reported the two to twenty-two-year results of 145 total hip arthroplasties (THAs) with cement performed from 1969 to 1980 in 117 patients with Crowe type-II dysplasia. The purpose of the present study was to update the long-term effects of a nonanatomic hip center on component loosening and aseptic revision in this cohort. Forty-nine patients (sixty hips) were alive at a mean of thirty-six years. The overall cumulative incidence of aseptic revision at thirty-five years was 32{\%} for acetabular cups and 21{\%} for femoral stems. Acetabular loosening was less likely with a hip center placed within the true acetabular region (TAR), <15mmsuperior to the approximate femoral head center (AFHC), <35 mm superior to the interteardrop line (ITL), or within zone 1. Femoral loosening and revision were less likely with the hip center placed <35 mm superior to the ITL and within zone 1. An anatomic hip center was associated with significantly lower loosening and aseptic revision rates for both acetabular and femoral components. The current study supports the placement of acetabular components in an anatomic position to promote long-term durability after THA with cement.",
author = "Watts, {Chad D.} and Matthew Abdel and Hanssen, {Arlen D.} and Mark Pagnano",
year = "2016",
month = "6",
day = "1",
doi = "10.2106/JBJS.15.00902",
language = "English (US)",
volume = "98",
pages = "910--915",
journal = "Journal of Bone and Joint Surgery - American Volume",
issn = "0021-9355",
publisher = "Journal of Bone and Joint Surgery Inc.",
number = "11",

}

TY - JOUR

T1 - Anatomic Hip Center Decreases Aseptic Loosening Rates after Total Hip Arthroplasty with Cement in Patients with Crowe Type-II Dysplasia

T2 - A Concise Follow-up Report at a Mean of Thirty-six Years

AU - Watts, Chad D.

AU - Abdel, Matthew

AU - Hanssen, Arlen D.

AU - Pagnano, Mark

PY - 2016/6/1

Y1 - 2016/6/1

N2 - We previously reported the two to twenty-two-year results of 145 total hip arthroplasties (THAs) with cement performed from 1969 to 1980 in 117 patients with Crowe type-II dysplasia. The purpose of the present study was to update the long-term effects of a nonanatomic hip center on component loosening and aseptic revision in this cohort. Forty-nine patients (sixty hips) were alive at a mean of thirty-six years. The overall cumulative incidence of aseptic revision at thirty-five years was 32% for acetabular cups and 21% for femoral stems. Acetabular loosening was less likely with a hip center placed within the true acetabular region (TAR), <15mmsuperior to the approximate femoral head center (AFHC), <35 mm superior to the interteardrop line (ITL), or within zone 1. Femoral loosening and revision were less likely with the hip center placed <35 mm superior to the ITL and within zone 1. An anatomic hip center was associated with significantly lower loosening and aseptic revision rates for both acetabular and femoral components. The current study supports the placement of acetabular components in an anatomic position to promote long-term durability after THA with cement.

AB - We previously reported the two to twenty-two-year results of 145 total hip arthroplasties (THAs) with cement performed from 1969 to 1980 in 117 patients with Crowe type-II dysplasia. The purpose of the present study was to update the long-term effects of a nonanatomic hip center on component loosening and aseptic revision in this cohort. Forty-nine patients (sixty hips) were alive at a mean of thirty-six years. The overall cumulative incidence of aseptic revision at thirty-five years was 32% for acetabular cups and 21% for femoral stems. Acetabular loosening was less likely with a hip center placed within the true acetabular region (TAR), <15mmsuperior to the approximate femoral head center (AFHC), <35 mm superior to the interteardrop line (ITL), or within zone 1. Femoral loosening and revision were less likely with the hip center placed <35 mm superior to the ITL and within zone 1. An anatomic hip center was associated with significantly lower loosening and aseptic revision rates for both acetabular and femoral components. The current study supports the placement of acetabular components in an anatomic position to promote long-term durability after THA with cement.

UR - http://www.scopus.com/inward/record.url?scp=84978877854&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84978877854&partnerID=8YFLogxK

U2 - 10.2106/JBJS.15.00902

DO - 10.2106/JBJS.15.00902

M3 - Article

VL - 98

SP - 910

EP - 915

JO - Journal of Bone and Joint Surgery - American Volume

JF - Journal of Bone and Joint Surgery - American Volume

SN - 0021-9355

IS - 11

ER -