NDLI: Computed tomography assessment of image-free navigation-assisted cup placement in THA in an Asian population.

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Computed tomography assessment of image-free navigation-assisted cup placement in THA in an Asian population.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Kim, Tae-Hoon Lee, Suk-Ha Yang, Jae-Hyuk Oh, Kwang-Jun
Spatial Coverage	Republic of Korea
Description	Author Affiliation: Kim TH ( Department of Orthopaedic Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Gwangjin-gu, Seoul, Korea.)
Abstract	The authors hypothesized that an image-free navigation system would be more accurate than postoperative 3-dimensional (3-D) reconstructed computed tomography (CT) for acetabular cup inclination and anteversion during total hip arthroplasty (THA) in an Asian population. Eighty-one THAs were performed in 72 patients using the OrthoPilot image-free navigation system (B. Braun Aesculap, Tuttlingen, Germany). Cup placement position was measured by postoperative 3-D CT and compared with intraoperative navigation data. The discrepancies between the navigation data and the 3-D CT data were analyzed, as well as the correlation factors that affected the discrepancies. The discrepancies between the navigation data and the 3-D CT data were -1.5° ± 7.1° (P=.04) for anteversion and -1.1° ± 7.6° (P=.02) for inclination. The accuracy and precision of the anteversion discrepancies were 5.6° ± 4.4° and 3.2°, respectively. The accuracy and precision of the inclination discrepancies were 4.5° ± 4.4° and 2.8°, respectively. Five (6%) outliers existed in terms of the safe zones of anteversion and inclination. The main correlated factor among the pelvic geometry was tilt rather than rotation and obliquity of the bony anterior pelvic plane.In an Asian population, the calculated accuracy and precision of acetabular cup inclination and anteversion during THA were more reliable and the outliers were reduced using the OrthoPilot navigation system. However, discrepancies existed between intraoperative navigation data and postoperative 3-D CT data. The pelvic geometry of biometrical factors influenced the discrepancies in the navigation data.
Related Links	https://www.healio.com/orthopedics/journals/ortho/2012-10-35-10-supplemental/{525e0973-2c80-4993-b19e-012514baaadd}/computed-tomography-assessment-of-image-free-navigation-assisted-cup-placement-in-tha-in-an-asian-population
File Format	HTM / HTML
ISSN	01477447
e-ISSN	19382367
DOI	10.3928/01477447-20120919-52
Journal	Orthopedics
Issue Number	10 Suppl
Volume Number	35
Language	English
Publisher	SLACK Incorporated
Publisher Date	2012-10-01
Publisher Place	United States
Access Restriction	Open
Subject Keyword	Discipline Orthopedics Arthroplasty, Replacement, Hip Hip Prosthesis Surgery, Computer-assisted Tomography, X-ray Computed Adverse Effects Instrumentation Asian Continental Ancestry Group Bone Malalignment Ethnology Etiology Hip Joint Surgery Pelvimetry Pelvis Anatomy & Histology Postoperative Complications Reproducibility Of Results Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Surgery

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