Computed tomographic measurement of acetabular and femoral component version in total hip arthroplasty

Fujishiro, Takaaki; Hayashi, Shinya; Kanzaki, Noriyuki; Hashimoto, Shingo; Kurosaka, Masahiro; Kanno, Taiki; Masuda, Takeshi

doi:10.1007/s00264-013-2264-z

Cited by 30 publications

(32 citation statements)

References 16 publications

(25 reference statements)

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“…Our results were consistent with the study 7 . According to their study, the femoral component version as measured from the CT scan ranged from 0.…”

Section: Resultssupporting

confidence: 94%

“…7 There was a significant correlation between the stem and native femoral versions, but not between the acetabular component and native acetabular versions.…”

Section: Resultsmentioning

confidence: 89%

“…7 According to their study, the acetabular component version angles ranged from 22.7" of retroversion to 56.6' of anteversion with a mean of 24.7"+11.3". The anteversion u'as less than 10" in 135 (9.6 %) cups, l0o-20o in 271 Our results were consistent with the study 7 . According to their study, the combined version of the components ranged from l2.9 to ll2" of anteversion with a mean of 65.0' +15.7".…”

Section: Resultsmentioning

confidence: 99%

“…5 Maheshwari AV et al calculated Femoral neck anteversion, acetabular anteversion and combined anteversion in the normal Indian adult population. 6 When compared with the Westem data, the femoral neck anteversion values were [3][4][5][6][7][8][9][10][11][12] o lower and the combined anteversion values were [3][4][5] o lower in Indian adults. The acetabular anteversion values were comparable, but were skewed towards the higher side.…”

Section: Resultsmentioning

confidence: 99%

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Study on correlation between combined femoral and acetabular anteversion in patients undergoing total hip arthroplasty using CT scan

Murthy

Reddy²

2016

Int J Res Orthop

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Background: The concept of hip Arthroplasty started as a very simple rudimentary idea of excising the hip joint (excision Arthroplasty), through to fusion of the hip, to actual replacement of the joint surfaces with various artificial substances ranging from glass, plastic, pig's bladder, ivory, ceramic polyethylene (PE) and more recently to actual metal-on metal hip replacement. Hip replacement is usually considered only after other therapies, such as physical therapy and pain medications, have failed. To determine the combined femoral and acetabular anteversion in patients undergoing total hip arthroplasty using CT scan.Methods: Patients admitted in hospital who underwent total hip arthroplasty from July 2013 to July 2015 were included in the study.Results: The study comprised of 40 patients, there were 15 (37.5%) females and 25 (62.5%) males. There were 7(17.5%) patients with less than 30º femoral component anteversion, 26 (65%) patients were in the range of 30º - 50º anteversion and 7 (17.5%) patients were in the range of more than 50º anteversion. There were 10 (25%) patients with less than 40 º combined anteversion, 23 (57.5%) patients were in the range of 40 º - 70 º anteversion and 7 (17.5 %) patients were in the range of more than 70 º anteversion.Conclusions: The functional outcome of the patients was better when the combined anteversion was between 4-7ff as compared to the functional outcome when the combined anteversion was either less than 40 " or more than 70'. However, we required larger group of study to validate the findings.

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“…Our results were consistent with the study 7 . According to their study, the femoral component version as measured from the CT scan ranged from 0.…”

Section: Resultssupporting

confidence: 94%

“…7 There was a significant correlation between the stem and native femoral versions, but not between the acetabular component and native acetabular versions.…”

Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Study on correlation between combined femoral and acetabular anteversion in patients undergoing total hip arthroplasty using CT scan

Murthy

Reddy²

2016

Int J Res Orthop

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“…Techniques using 2D CT slices may be difficult in selecting appropriate slice location and reproducible anatomical landmarks [18]. Furthermore, measuring component orientations and positions using plain radiographs and 2D CT slices can be affected by hip rotation and pelvic tilt while imaging [20]. The 3D CT modeling and mirroring technique used in this study is not affected by hip rotation and pelvic tilt during imaging.…”

Section: Discussionmentioning

confidence: 87%

Does total hip arthroplasty restore native hip anatomy? Three-dimensional reconstruction analysis

Tsai

Dimitriou

et al. 2014

International Orthopaedics (SICOT)

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Purpose Component orientations and positions in total hip arthroplasty (THA) are important parameters in restoring hip function. However, measurements using plain radiographs and 2D computed tomography (CT) slices are affected by patient position during imaging. This study used 3D CT to determine whether contemporary THA restores native hip geometry. Methods Fourteen patients with unilateral THA underwent CT scan for 3D hip reconstruction. Hip models of the nonoperated side were mirrored with the implanted side to quantify the differences in hip geometry between sides. Results The study demonstrated that combined hip anteversion (sum of acetabular and femoral anteversion) and vertical hip offset significantly increased by 25.3°±29.3°( range, −25.7°to 55.9°, p=0.003) and 4.1±4.7 mm (range, −7.1 to 9.8 mm, p=0.009) in THAs. Conclusions These data suggest that hip anatomy is not fully restored following THA compared with the contralateral native hip.

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Changes of acetabular anteversion according to pelvic tilt on sagittal plane under various acetabular inclinations

Song

Choi

Jung

et al. 2020

Journal Orthopaedic Research

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Improper functional orientation of the acetabular cup can result in improper positions when dynamic pelvic positions are not considered. The purpose of this study was to evaluate changes on acetabular anteversion according to pelvic tilt under various acetabular inclinations. Two artificial pelvic models were selected for this study. Acetabular inclinations on the coronal plane were 25°, 32°, 50°, and 60°. Acetabular anteversion of all components were 15°. Changes of anteversion according to pelvic tilt were measured at angles of 0°, 10°, 20°, 30°, and 40°. Computer Navigation, PolyWare 3D pro, CT, and plain radiography were used to measure each angle. The anatomical anteversions against pelvic tilt were calculated using the following formulae: anatomical anteversion (°) = −14.48Χ + 90.18 (inclination angle 25°); anatomical anteversion (°) = −12.26Χ + 80.10 (inclination angle 32°); anatomical anteversion (°) = −7.468Χ + 61.13 (inclination angle 50°); and anatomical anteversion (°) = −5.328Χ + 44.84 (inclination angle 60°) (Χ: pelvic tilt angle). Radiographic anteversion against pelvic tilt were calculated using the following formulae: radiographic anteversion (°) = −9.50Χ + 57.09 (inclination angle 25°); radiographic anteversion (°) = −8.577Χ + 50.89 (inclination angle 32°); radiographic anteversion (°) = −6.794Χ + 45.73 (inclination angle 50°); radiographic anteversion (°) = −5.226Χ + 33.08 (inclination angle 60°). In conclusion, changes in anteversion according to pelvic tilt were lesser at higher degrees of acetabular inclination.

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Computed tomographic measurement of acetabular and femoral component version in total hip arthroplasty

Abstract: This study identifies several features that might help analyse the effect of pre-operative native acetabular and femoral version on the variation of component alignment.

Cited by 30 publications

References 16 publications

Study on correlation between combined femoral and acetabular anteversion in patients undergoing total hip arthroplasty using CT scan

Study on correlation between combined femoral and acetabular anteversion in patients undergoing total hip arthroplasty using CT scan

Does total hip arthroplasty restore native hip anatomy? Three-dimensional reconstruction analysis

Changes of acetabular anteversion according to pelvic tilt on sagittal plane under various acetabular inclinations

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