RT Journal Article
T1 Orthopedic Surgeons' Accuracy When Orienting an Acetabular Cup. A Comparison with Untrained Individuals.
A1 Moreta, Jesús
A1 Gayoso, Óscar
A1 Donaire-Hoyas, Daniel
A1 Roces-García, Jorge
A1 Gómez-Vallejo, Jesús
A1 Moya-Gómez, Esther
A1 Raya-Roldán, David
A1 Albert-Ullibarri, Alberto
A1 Marqués-López, Fernando
A1 Albareda, Jorge
K1 accuracy
K1 acetabulum
K1 arthroplasty
K1 hip prosthesis
K1 navigation
K1 total hip replacement
AB Background and Objectives: Previous studies demonstrated a huge variability among surgeons when it comes to reproducing the position of an acetabular cup in total hip arthroplasty. Our main objective is to determine if orthopedic surgeons can replicate a given orientation on a pelvic model better than untrained individuals. Our secondary objective is to determine if experience has any influence on their ability for this task. Materials and Methods: A group of specialist orthopedic hip surgeons and a group of volunteers with no medical training were asked to reproduce three given (randomly generated) acetabular cup orientations (inclination and anteversion) on a pelvic model. Error was measured by means of a hip navigation system and comparisons between groups were made using the appropriate statistical methods. Results: The study included 107 individuals, 36 orthopedic surgeons and 71 untrained volunteers. The mean error among surgeons was slightly greater as regards both inclination (7.84 ± 5.53 vs. 6.70 ± 4.03) and anteversion (5.85 ± 4.52 vs. 5.48 ± 3.44), although statistical significance was not reached (p = 0.226 and p = 0.639, respectively). Similarly, although surgeons with more than 100 procedures a year obtained better results than those with less surgical experience (8.01 vs. 7.67 degrees of error in inclination and 5.83 vs. 5.87 in anteversion), this difference was not statistically significant, either (p = 0.852 and p = 0.981). Conclusions: No differences were found in the average error made by orthopedic surgeons and untrained individuals. Furthermore, the surgeons' cup orientation accuracy was not seen to improve significantly with experience.
YR 2022
FD 2022-07-21
LK http://hdl.handle.net/10668/21427
UL http://hdl.handle.net/10668/21427
LA en
DS RISalud
RD Apr 10, 2025