Surgeon error in performing intraoperative estimation of stem anteversion in cementless total hip arthroplasty.
J Arthroplasty
; 28(9): 1648-53, 2013 Oct.
Article
in En
| MEDLINE
| ID: mdl-23602234
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.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Medical Errors
/
Arthroplasty, Replacement, Hip
/
Hip Joint
/
Hip Prosthesis
/
Joint Diseases
Type of study:
Observational_studies
Limits:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
En
Journal:
J Arthroplasty
Journal subject:
ORTOPEDIA
Year:
2013
Type:
Article
Affiliation country:
Japan