Academic Journal
Liaw's Ellipse Anteversion Method for Distinguishing Acetabular Component Retroversion from Anteversion on Plain Radiographs
| العنوان: | Liaw's Ellipse Anteversion Method for Distinguishing Acetabular Component Retroversion from Anteversion on Plain Radiographs |
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| المؤلفون: | Chun‐Hao Lin, Wei‐Cheng Chen, Pei‐Wei Weng, Yu‐min Huang, Chen‐Kun Liaw |
| المصدر: | Orthopaedic Surgery, Vol 16, Iss 1, Pp 276-281 (2024) |
| بيانات النشر: | Wiley, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Orthopedic surgery |
| مصطلحات موضوعية: | Acetabulum, Ellipse Method, Liaw's Version, Radiographs, Retroversion, Total Hip Arthroplasty, Orthopedic surgery, RD701-811 |
| الوصف: | Improper acetabulum component position is a significant risk factor for postoperative dislocation after total hip arthroplasty. Several radiographic two‐dimensional methods exist for measuring acetabulum component anteversion, but they cannot distinguish between anteversion and retroversion. “Liaw's version,” initially proposed as a simple mathematical standardized two‐dimensional method, was modified to the computerized ellipse method, proving superior accuracy to traditional two‐dimensional methods. In this article, we demonstrated its application in detecting and measuring retroverted acetabulum component. We obtained anteroposterior pelvis radiographs from a patient undergoing total hip arthroplasty on the day of surgery and 2 weeks postoperatively. The computerized ellipse method was used to measure the acetabulum component orientation. Upon comparison, the difference between θ assigned to be retroverted (9.52–8.56 = 0.96) is much smaller than the difference between θ assigned to be anteverted (23.81–18.86 = 4.95), leading us to determine retroversion. This was further confirmed by computed tomography at the 6‐week follow‐up. We propose that using the computerized ellipse method to measure Liaw's version can be a valuable tool in identifying acetabulum component retroversion on anteroposterior radiographs during routine postoperative follow‐up and retrospective assessments of total hip arthroplasty patients. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1757-7861 1757-7853 |
| Relation: | https://doaj.org/toc/1757-7853; https://doaj.org/toc/1757-7861 |
| DOI: | 10.1111/os.13902 |
| URL الوصول: | https://doaj.org/article/bd4ce1c425374e57ae9e7685a68b9c84 |
| رقم الانضمام: | edsdoj.bd4ce1c425374e57ae9e7685a68b9c84 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 17577861 17577853 |
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| DOI: | 10.1111/os.13902 |