The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips

Abstract Background Total hip arthroplasty (THA) for developmental dysplasia of the hip (DDH) is a complex procedure due to associated anatomical abnormalities. We studied the extent to which preoperative digital templating is reliable when performing cementless THA in patients with DDH. Methods We...

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Autores principales:	Emelie Kristoffersson, Volker Otten, Sead Crnalic
Formato:	article
Lenguaje:	EN
Publicado:	BMC 2021
Materias:	Digital templating Dysplasia Cementless total hip arthroplasty Accuracy Diseases of the musculoskeletal system RC925-935
Acceso en línea:	https://doaj.org/article/b6bd6aab1558463d875f16d227c42b5a
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spelling	oai:doaj.org-article:b6bd6aab1558463d875f16d227c42b5a2021-11-14T12:28:17ZThe accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips10.1186/s12891-021-04793-61471-2474https://doaj.org/article/b6bd6aab1558463d875f16d227c42b5a2021-11-01T00:00:00Zhttps://doi.org/10.1186/s12891-021-04793-6https://doaj.org/toc/1471-2474Abstract Background Total hip arthroplasty (THA) for developmental dysplasia of the hip (DDH) is a complex procedure due to associated anatomical abnormalities. We studied the extent to which preoperative digital templating is reliable when performing cementless THA in patients with DDH. Methods We templated and compared the pre- and postoperative sizes of the acetabular and femoral components and the center of rotation (COR), and analysed the postoperative cup coverage, leg length discrepancy (LLD), and stem alignment in 50 patients (56 hips) with DDH treated with THA. Results The implant size exactly matched the template size in 42.9% of cases for the acetabular component and in 38.2% of cases for the femoral component, whereas the templated ±1 size was used in 80.4 and 81.8% of cases for the acetabular and femoral components, respectively. There were no statistically significant differences between templated and used component sizes among different DDH severity levels (acetabular cup: p = 0.30 under the Crowe classification and p = 0.94 under the Hartofilakidis classification; femoral stem: p = 0.98 and p = 0.74, respectively). There were no statistically significant differences between the planned and postoperative COR (p = 0.14 horizontally and p = 0.52 vertically). The median postoperative LLD was 7 (range 0–37) mm. Conclusion Digital preoperative templating is reliable in the planning of cementless THA in patients with DDH.Emelie KristofferssonVolker OttenSead CrnalicBMCarticleDigital templatingDysplasiaCementless total hip arthroplastyAccuracyDiseases of the musculoskeletal systemRC925-935ENBMC Musculoskeletal Disorders, Vol 22, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Digital templating Dysplasia Cementless total hip arthroplasty Accuracy Diseases of the musculoskeletal system RC925-935
spellingShingle	Digital templating Dysplasia Cementless total hip arthroplasty Accuracy Diseases of the musculoskeletal system RC925-935 Emelie Kristoffersson Volker Otten Sead Crnalic The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
description	Abstract Background Total hip arthroplasty (THA) for developmental dysplasia of the hip (DDH) is a complex procedure due to associated anatomical abnormalities. We studied the extent to which preoperative digital templating is reliable when performing cementless THA in patients with DDH. Methods We templated and compared the pre- and postoperative sizes of the acetabular and femoral components and the center of rotation (COR), and analysed the postoperative cup coverage, leg length discrepancy (LLD), and stem alignment in 50 patients (56 hips) with DDH treated with THA. Results The implant size exactly matched the template size in 42.9% of cases for the acetabular component and in 38.2% of cases for the femoral component, whereas the templated ±1 size was used in 80.4 and 81.8% of cases for the acetabular and femoral components, respectively. There were no statistically significant differences between templated and used component sizes among different DDH severity levels (acetabular cup: p = 0.30 under the Crowe classification and p = 0.94 under the Hartofilakidis classification; femoral stem: p = 0.98 and p = 0.74, respectively). There were no statistically significant differences between the planned and postoperative COR (p = 0.14 horizontally and p = 0.52 vertically). The median postoperative LLD was 7 (range 0–37) mm. Conclusion Digital preoperative templating is reliable in the planning of cementless THA in patients with DDH.
format	article
author	Emelie Kristoffersson Volker Otten Sead Crnalic
author_facet	Emelie Kristoffersson Volker Otten Sead Crnalic
author_sort	Emelie Kristoffersson
title	The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
title_short	The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
title_full	The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
title_fullStr	The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
title_full_unstemmed	The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
title_sort	accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips
publisher	BMC
publishDate	2021
url	https://doaj.org/article/b6bd6aab1558463d875f16d227c42b5a
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The accuracy of digital templating in cementless total hip arthroplasty in dysplastic hips

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