Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement

Purpose. To measure the transverse acetabular ligament (TAL) anteversion in hips with severe deformity, using fluoroscopy–computed tomographic navigation. Methods. 31 hips in 10 men and 19 women aged 40 to 78 (mean, 58.7) years who underwent total hip arthroplasty for primary osteoarthritis (n=6) or...

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Main Authors: Masahiro Inoue, Tokifumi Majima, Satomi Abe, Takayuki Nakamura, Taiki Kanno, Takeshi Masuda, Akio Minami
Format: Article
Language:English
Published: SAGE Publishing 2013-08-01
Series:Journal of Orthopaedic Surgery
Online Access:https://doi.org/10.1177/230949901302100215
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author Masahiro Inoue
Tokifumi Majima
Satomi Abe
Takayuki Nakamura
Taiki Kanno
Takeshi Masuda
Akio Minami
author_facet Masahiro Inoue
Tokifumi Majima
Satomi Abe
Takayuki Nakamura
Taiki Kanno
Takeshi Masuda
Akio Minami
author_sort Masahiro Inoue
collection DOAJ
description Purpose. To measure the transverse acetabular ligament (TAL) anteversion in hips with severe deformity, using fluoroscopy–computed tomographic navigation. Methods. 31 hips in 10 men and 19 women aged 40 to 78 (mean, 58.7) years who underwent total hip arthroplasty for primary osteoarthritis (n=6) or osteoarthritis secondary to developmental hip dysplasia (n=19) or congenital hip dislocation (n=6) were included. The severity of hip dislocation was classified according to the Crowe classification; 15 hips were grade 1, 7 were grade 2, 3 were grade 3, and 6 were grade 4. The TAL anteversion was measured using fluoroscopy–computed tomographic navigation. The difference in TAL anteversion between non-dislocated hips (Crowe grade 1, n=15) and dislocated hips (Crowe grades 2–4, n=16) was compared. Results. In all 31 hips, the TAL could be visualised intra-operatively. No patient reported severe pain, early wear, loosening, or dislocation after 2 years. The mean TAL anteversion and inclination angles measured by the navigation system were 26.5° (SD, 8.9°; range, 8°–42°) and 41.5° (SD, 4.6°; range, 32°–49°), respectively. 22 of the 31 hips were in the safe zone. TAL anteversion in non-dislocated and dislocated hips was not significantly different. Inter- and intra-observer mean absolute differences in TAL anteversion were 0.3° and 0.4°, respectively. Conclusion. The TAL is a useful anatomic landmark for total hip arthroplasty in dislocated hips.
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spelling doaj.art-8187883202664182bf95901fbc13c8062022-12-21T19:02:15ZengSAGE PublishingJournal of Orthopaedic Surgery2309-49902013-08-012110.1177/230949901302100215Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative MeasurementMasahiro Inoue0Tokifumi Majima1Satomi Abe2Takayuki Nakamura3Taiki Kanno4Takeshi Masuda5Akio Minami6 Department of Orthopaedic Surgery, Wajo Eniwa Hospital, Eniwa, Hokkaido, Japan Department of Joint Replacement and Tissue Engineering, Hokkaido University, Sapporo, Hokkaido, Japan Department of Orthopaedic Surgery, Wajo Eniwa Hospital, Eniwa, Hokkaido, Japan DePuy Japan, Johnson & Johnson KK, Tokyo, Japan Department of Orthopaedic Surgery, Wajo Eniwa Hospital, Eniwa, Hokkaido, Japan Department of Orthopaedic Surgery, Wajo Eniwa Hospital, Eniwa, Hokkaido, Japan Department of Orthopaedic Surgery, Hokkaido University, Sapporo, Hokkaido, JapanPurpose. To measure the transverse acetabular ligament (TAL) anteversion in hips with severe deformity, using fluoroscopy–computed tomographic navigation. Methods. 31 hips in 10 men and 19 women aged 40 to 78 (mean, 58.7) years who underwent total hip arthroplasty for primary osteoarthritis (n=6) or osteoarthritis secondary to developmental hip dysplasia (n=19) or congenital hip dislocation (n=6) were included. The severity of hip dislocation was classified according to the Crowe classification; 15 hips were grade 1, 7 were grade 2, 3 were grade 3, and 6 were grade 4. The TAL anteversion was measured using fluoroscopy–computed tomographic navigation. The difference in TAL anteversion between non-dislocated hips (Crowe grade 1, n=15) and dislocated hips (Crowe grades 2–4, n=16) was compared. Results. In all 31 hips, the TAL could be visualised intra-operatively. No patient reported severe pain, early wear, loosening, or dislocation after 2 years. The mean TAL anteversion and inclination angles measured by the navigation system were 26.5° (SD, 8.9°; range, 8°–42°) and 41.5° (SD, 4.6°; range, 32°–49°), respectively. 22 of the 31 hips were in the safe zone. TAL anteversion in non-dislocated and dislocated hips was not significantly different. Inter- and intra-observer mean absolute differences in TAL anteversion were 0.3° and 0.4°, respectively. Conclusion. The TAL is a useful anatomic landmark for total hip arthroplasty in dislocated hips.https://doi.org/10.1177/230949901302100215
spellingShingle Masahiro Inoue
Tokifumi Majima
Satomi Abe
Takayuki Nakamura
Taiki Kanno
Takeshi Masuda
Akio Minami
Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
Journal of Orthopaedic Surgery
title Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
title_full Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
title_fullStr Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
title_full_unstemmed Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
title_short Using the Transverse Acetabular Ligament as a Landmark for Acetabular Anteversion: An Intraoperative Measurement
title_sort using the transverse acetabular ligament as a landmark for acetabular anteversion an intraoperative measurement
url https://doi.org/10.1177/230949901302100215
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