Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty

Masanobu Hirata, Yasuharu Nakashima, Masanobu Ohishi, Satoshi Hamai, Daisuke Hara, Yukihide Iwamoto

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

To examine the accuracy of intraoperative estimation of stem anteversion in total hip arthroplasty (THA), we compared the intraoperatively estimated stem anteversion (estimated prosthetic anteversion) to stem anteversion measured by postoperative computed tomography (true anteversion) in 73 hips in 73 patients. Estimated prosthetic anteversion was significantly greater than true anteversion by 5.8°, and the mean absolute value of surgeon error was 7.3° ranging from 11° underestimation to 25° overestimation. Surgeons tended to overestimate when the true anteversion was smaller. A multivariate analysis showed that advanced knee osteoarthritis significantly increased surgeon error. These results indicated that estimated prosthetic anteversion was generally larger than true anteversion and that the grade of knee osteoarthritis affected the degree of surgeon error.

Original languageEnglish
Pages (from-to)1648-1653
Number of pages6
JournalJournal of Arthroplasty
Volume28
Issue number9
DOIs
Publication statusPublished - Oct 1 2013

Fingerprint

Arthroplasty
Hip
Knee Osteoarthritis
Multivariate Analysis
Tomography
Surgeons

All Science Journal Classification (ASJC) codes

  • Orthopedics and Sports Medicine

Cite this

Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty. / Hirata, Masanobu; Nakashima, Yasuharu; Ohishi, Masanobu; Hamai, Satoshi; Hara, Daisuke; Iwamoto, Yukihide.

In: Journal of Arthroplasty, Vol. 28, No. 9, 01.10.2013, p. 1648-1653.

Research output: Contribution to journalArticle

Hirata, Masanobu ; Nakashima, Yasuharu ; Ohishi, Masanobu ; Hamai, Satoshi ; Hara, Daisuke ; Iwamoto, Yukihide. / Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty. In: Journal of Arthroplasty. 2013 ; Vol. 28, No. 9. pp. 1648-1653.
@article{5aee6211dcc34e05a31a3d69a6919265,
title = "Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty",
abstract = "To examine the accuracy of intraoperative estimation of stem anteversion in total hip arthroplasty (THA), we compared the intraoperatively estimated stem anteversion (estimated prosthetic anteversion) to stem anteversion measured by postoperative computed tomography (true anteversion) in 73 hips in 73 patients. Estimated prosthetic anteversion was significantly greater than true anteversion by 5.8°, and the mean absolute value of surgeon error was 7.3° ranging from 11° underestimation to 25° overestimation. Surgeons tended to overestimate when the true anteversion was smaller. A multivariate analysis showed that advanced knee osteoarthritis significantly increased surgeon error. These results indicated that estimated prosthetic anteversion was generally larger than true anteversion and that the grade of knee osteoarthritis affected the degree of surgeon error.",
author = "Masanobu Hirata and Yasuharu Nakashima and Masanobu Ohishi and Satoshi Hamai and Daisuke Hara and Yukihide Iwamoto",
year = "2013",
month = "10",
day = "1",
doi = "10.1016/j.arth.2013.03.006",
language = "English",
volume = "28",
pages = "1648--1653",
journal = "Journal of Arthroplasty",
issn = "0883-5403",
publisher = "Churchill Livingstone",
number = "9",

}

TY - JOUR

T1 - Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty

AU - Hirata, Masanobu

AU - Nakashima, Yasuharu

AU - Ohishi, Masanobu

AU - Hamai, Satoshi

AU - Hara, Daisuke

AU - Iwamoto, Yukihide

PY - 2013/10/1

Y1 - 2013/10/1

N2 - To examine the accuracy of intraoperative estimation of stem anteversion in total hip arthroplasty (THA), we compared the intraoperatively estimated stem anteversion (estimated prosthetic anteversion) to stem anteversion measured by postoperative computed tomography (true anteversion) in 73 hips in 73 patients. Estimated prosthetic anteversion was significantly greater than true anteversion by 5.8°, and the mean absolute value of surgeon error was 7.3° ranging from 11° underestimation to 25° overestimation. Surgeons tended to overestimate when the true anteversion was smaller. A multivariate analysis showed that advanced knee osteoarthritis significantly increased surgeon error. These results indicated that estimated prosthetic anteversion was generally larger than true anteversion and that the grade of knee osteoarthritis affected the degree of surgeon error.

AB - To examine the accuracy of intraoperative estimation of stem anteversion in total hip arthroplasty (THA), we compared the intraoperatively estimated stem anteversion (estimated prosthetic anteversion) to stem anteversion measured by postoperative computed tomography (true anteversion) in 73 hips in 73 patients. Estimated prosthetic anteversion was significantly greater than true anteversion by 5.8°, and the mean absolute value of surgeon error was 7.3° ranging from 11° underestimation to 25° overestimation. Surgeons tended to overestimate when the true anteversion was smaller. A multivariate analysis showed that advanced knee osteoarthritis significantly increased surgeon error. These results indicated that estimated prosthetic anteversion was generally larger than true anteversion and that the grade of knee osteoarthritis affected the degree of surgeon error.

UR - http://www.scopus.com/inward/record.url?scp=84885021862&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84885021862&partnerID=8YFLogxK

U2 - 10.1016/j.arth.2013.03.006

DO - 10.1016/j.arth.2013.03.006

M3 - Article

C2 - 23602234

AN - SCOPUS:84885021862

VL - 28

SP - 1648

EP - 1653

JO - Journal of Arthroplasty

JF - Journal of Arthroplasty

SN - 0883-5403

IS - 9

ER -