Three‐Dimensional Morphological Analysis of Sex, Age, and Symmetry of Proximal Femurs from Computed Tomography: Application to Total Hip Arthroplasty

2019 ◽  
Vol 33 (5) ◽  
pp. 731-738
Author(s):  
Chelsea A. Sparks ◽  
Summer J. Decker ◽  
Jonathan M. Ford
Keyword(s):  
Computed Tomography ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Morphological Analysis ◽  
Three Dimensional ◽  
Total Hip

scholarly journals Interobserver and Intraobserver Reliabilities of Three-Dimensional Postoperative Evaluation Software in Total Hip Arthroplasty

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Kenta Konno ◽  
Shigeo Hagiwara ◽  
Junichi Nakamura ◽  
Yuya Kawarai ◽  
Sumihisa Orita ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Intraclass Correlation ◽  
Three Dimensional ◽  
Correlation Coefficients ◽  
Postoperative Evaluation ◽  
Total Hip ◽  
Intraclass Correlation Coefficients ◽  
Implant Positioning

Background. In primary and revision total hip arthroplasty, to prevent perioperative complications, the prediction of the optimal implant size is essential. Using three-dimensional computed tomography-based postoperative evaluation software, we explored the accuracy and the precision of measurement of the size, alignment, and position of the prosthetic components after total hip arthroplasty. Methods. Using postoperative evaluation software, the postoperative computed tomography data from 20 hips in 20 patients were evaluated. The component size, alignment, and three-dimensional positioning of the cup and stem were assessed. The concordance rates of the component, repeatability (intraobserver reliability), and reproducibility (interobserver reliability) of postoperative evaluation were calculated. The radiographic inclination and radiographic anteversion of the cup, anteversion, varus–valgus angle, and flexion–extension angles of the stem were measured for alignment. The implant positioning was measured along three axes, namely, X-axis (transverse), Y-axis (sagittal), and Z-axis (longitudinal). Results. The concordance rates of all parts are above 94%. The intraobserver and interobserver intraclass correlation coefficients of alignment measurement were very good for both cup (0.879–0.964) and stem (0.973–0.996). The intraobserver and interobserver intraclass correlation coefficients of cup positioning were very good (0.961–0.987) for all axes. The intraobserver and interobserver intraclass correlation coefficients of implant positioning were very good for the stem (0.879–0.995) for all axes. Conclusions. Computed tomography-based postoperative evaluation software was able to evaluate the size and position of total hip implants with high reproducibility.

Low Dose Computed Tomography for 3D Planning of Total Hip Arthroplasty

2015 ◽  
Vol 39 (5) ◽  
pp. 649-656 ◽  
Author(s):  
Alexander Huppertz ◽  
Alexander Lembcke ◽  
El-hadi Sariali ◽  
Tahir Durmus ◽  
Carsten Schwenke ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Low Dose ◽  
Total Hip ◽  
Low Dose Computed Tomography

Minimal Radiation Dose Computed Tomography for Measurement of Cup Orientation in Total Hip Arthroplasty

2010 ◽  
Vol 25 (2) ◽  
pp. 263-267 ◽  
Author(s):  
Noriyuki Arai ◽  
Shigeru Nakamura ◽  
Takashi Matsushita ◽  
Shigeru Suzuki
Keyword(s):  
Computed Tomography ◽  
Radiation Dose ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Total Hip

Evaluation of medial acetabular wall bone stock in patients with developmental dysplasia of the hip using a helical computed tomography multiplanar reconstruction technique

2009 ◽  
Vol 50 (7) ◽  
pp. 791-797 ◽  
Author(s):  
Rui Yu Liu ◽  
Kun Zheng Wang ◽  
Chun Sheng Wang ◽  
Xiao Qian Dang ◽  
Zhi Qin Tong
Keyword(s):  
Computed Tomography ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Helical Computed Tomography ◽  
Reconstruction Technique ◽  
Bone Stock ◽  
Total Hip ◽  
Dysplasia Of The Hip ◽  
Acetabular Wall

Background: The technique of medialization has been used to reconstruct acetabula at the level of true acetabula in total hip arthroplasty (THA) in patients with developmental dysplasia of the hip (DDH). Appreciation of the bone stock in the medial acetabular wall is significant for making an optimal acetabular reconstruction plan and avoiding complications. Purpose: To evaluate the bone stock of the medial acetabular wall and its relation to the degree of subluxation in patients with DDH using computed tomography (CT). Material and Methods: Helical CT scans of 27 hips were obtained from 21 patients with osteoarthritis secondary to DDH who were scheduled for total hip arthroplasty. Eleven hips belonged to Crowe class I, while 16 hips belonged to Crowe class II/III. The raw CT data were reprocessed in various planes by scrolling multiplanar reformation (MPR). Acetabular opening, depth, and medial bone stock, as indicated by the minimum thickness of the medial acetabular wall, were measured in the transverse reformed MPR plane. Results: The minimum thicknesses of the medial acetabular wall in Crowe-I and Crowe-II/III hips were 3.8±2.1 mm and 7.1±3.1 mm, respectively, with statistically significant differences between the groups ( P<0.05). Furthermore, the bone stock in the medial acetabular wall correlated with the degree of subluxation ( R=0.69) and the acetabular depth ( R= ;− ;0.71). Conclusion: There was significantly more bone stock in the medial acetabular wall in patients with higher-degree subluxation than there was in the less-severe class. This difference should be taken into consideration when reconstructing acetabula in THA in patients with DDH using the technique of medialization.

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