The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis

Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent pr...
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Autor*in:	Kai Xie [verfasserIn] Xuequan Han [verfasserIn] Xu Jiang [verfasserIn] Songtao Ai [verfasserIn] Kerong Dai [verfasserIn] Zhifeng Yu [verfasserIn] Haishan Wu [verfasserIn] Xinhua Qu [verfasserIn] Mengning Yan [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2019

Schlagwörter:	Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity

Übergeordnetes Werk:	In: Journal of Orthopaedic Surgery and Research - BMC, 2006, 14(2019), 1, Seite 7
Übergeordnetes Werk:	volume:14 ; year:2019 ; number:1 ; pages:7

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1186/s13018-019-1191-0

Katalog-ID:	DOAJ030635535

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245	1	4	\|a The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
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520			\|a Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA.
650		4	\|a Total knee arthroplasty
650		4	\|a Knee alignment
650		4	\|a Ankle malalignment
650		4	\|a Varus knee deformity
653		0	\|a Orthopedic surgery
653		0	\|a Diseases of the musculoskeletal system
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700	0		\|a Xinhua Qu \|e verfasserin \|4 aut
700	0		\|a Mengning Yan \|e verfasserin \|4 aut
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author_variant	k x kx x h xh x j xj s a sa k d kd z y zy h w hw x q xq m y my
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allfields	10.1186/s13018-019-1191-0 doi (DE-627)DOAJ030635535 (DE-599)DOAJ4660c27d94c14b879d6aac58f85c3e0c DE-627 ger DE-627 rakwb eng RD701-811 RC925-935 Kai Xie verfasserin aut The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA. Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system Xuequan Han verfasserin aut Xu Jiang verfasserin aut Songtao Ai verfasserin aut Kerong Dai verfasserin aut Zhifeng Yu verfasserin aut Haishan Wu verfasserin aut Xinhua Qu verfasserin aut Mengning Yan verfasserin aut In Journal of Orthopaedic Surgery and Research BMC, 2006 14(2019), 1, Seite 7 (DE-627)518346145 (DE-600)2252548-8 1749799X nnns volume:14 year:2019 number:1 pages:7 https://doi.org/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c kostenfrei http://link.springer.com/article/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/toc/1749-799X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2019 1 7
spelling	10.1186/s13018-019-1191-0 doi (DE-627)DOAJ030635535 (DE-599)DOAJ4660c27d94c14b879d6aac58f85c3e0c DE-627 ger DE-627 rakwb eng RD701-811 RC925-935 Kai Xie verfasserin aut The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA. Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system Xuequan Han verfasserin aut Xu Jiang verfasserin aut Songtao Ai verfasserin aut Kerong Dai verfasserin aut Zhifeng Yu verfasserin aut Haishan Wu verfasserin aut Xinhua Qu verfasserin aut Mengning Yan verfasserin aut In Journal of Orthopaedic Surgery and Research BMC, 2006 14(2019), 1, Seite 7 (DE-627)518346145 (DE-600)2252548-8 1749799X nnns volume:14 year:2019 number:1 pages:7 https://doi.org/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c kostenfrei http://link.springer.com/article/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/toc/1749-799X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2019 1 7
allfields_unstemmed	10.1186/s13018-019-1191-0 doi (DE-627)DOAJ030635535 (DE-599)DOAJ4660c27d94c14b879d6aac58f85c3e0c DE-627 ger DE-627 rakwb eng RD701-811 RC925-935 Kai Xie verfasserin aut The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA. Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system Xuequan Han verfasserin aut Xu Jiang verfasserin aut Songtao Ai verfasserin aut Kerong Dai verfasserin aut Zhifeng Yu verfasserin aut Haishan Wu verfasserin aut Xinhua Qu verfasserin aut Mengning Yan verfasserin aut In Journal of Orthopaedic Surgery and Research BMC, 2006 14(2019), 1, Seite 7 (DE-627)518346145 (DE-600)2252548-8 1749799X nnns volume:14 year:2019 number:1 pages:7 https://doi.org/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c kostenfrei http://link.springer.com/article/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/toc/1749-799X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2019 1 7
allfieldsGer	10.1186/s13018-019-1191-0 doi (DE-627)DOAJ030635535 (DE-599)DOAJ4660c27d94c14b879d6aac58f85c3e0c DE-627 ger DE-627 rakwb eng RD701-811 RC925-935 Kai Xie verfasserin aut The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA. Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system Xuequan Han verfasserin aut Xu Jiang verfasserin aut Songtao Ai verfasserin aut Kerong Dai verfasserin aut Zhifeng Yu verfasserin aut Haishan Wu verfasserin aut Xinhua Qu verfasserin aut Mengning Yan verfasserin aut In Journal of Orthopaedic Surgery and Research BMC, 2006 14(2019), 1, Seite 7 (DE-627)518346145 (DE-600)2252548-8 1749799X nnns volume:14 year:2019 number:1 pages:7 https://doi.org/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c kostenfrei http://link.springer.com/article/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/toc/1749-799X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2019 1 7
allfieldsSound	10.1186/s13018-019-1191-0 doi (DE-627)DOAJ030635535 (DE-599)DOAJ4660c27d94c14b879d6aac58f85c3e0c DE-627 ger DE-627 rakwb eng RD701-811 RC925-935 Kai Xie verfasserin aut The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA. Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system Xuequan Han verfasserin aut Xu Jiang verfasserin aut Songtao Ai verfasserin aut Kerong Dai verfasserin aut Zhifeng Yu verfasserin aut Haishan Wu verfasserin aut Xinhua Qu verfasserin aut Mengning Yan verfasserin aut In Journal of Orthopaedic Surgery and Research BMC, 2006 14(2019), 1, Seite 7 (DE-627)518346145 (DE-600)2252548-8 1749799X nnns volume:14 year:2019 number:1 pages:7 https://doi.org/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c kostenfrei http://link.springer.com/article/10.1186/s13018-019-1191-0 kostenfrei https://doaj.org/toc/1749-799X Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2019 1 7
language	English
source	In Journal of Orthopaedic Surgery and Research 14(2019), 1, Seite 7 volume:14 year:2019 number:1 pages:7
sourceStr	In Journal of Orthopaedic Surgery and Research 14(2019), 1, Seite 7 volume:14 year:2019 number:1 pages:7
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity Orthopedic surgery Diseases of the musculoskeletal system
isfreeaccess_bool	true
container_title	Journal of Orthopaedic Surgery and Research
authorswithroles_txt_mv	Kai Xie @@aut@@ Xuequan Han @@aut@@ Xu Jiang @@aut@@ Songtao Ai @@aut@@ Kerong Dai @@aut@@ Zhifeng Yu @@aut@@ Haishan Wu @@aut@@ Xinhua Qu @@aut@@ Mengning Yan @@aut@@
publishDateDaySort_date	2019-01-01T00:00:00Z
hierarchy_top_id	518346145
id	DOAJ030635535
language_de	englisch
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Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. 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callnumber-first	R - Medicine
author	Kai Xie
spellingShingle	Kai Xie misc RD701-811 misc RC925-935 misc Total knee arthroplasty misc Knee alignment misc Ankle malalignment misc Varus knee deformity misc Orthopedic surgery misc Diseases of the musculoskeletal system The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
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topic_title	RD701-811 RC925-935 The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis Total knee arthroplasty Knee alignment Ankle malalignment Varus knee deformity
topic	misc RD701-811 misc RC925-935 misc Total knee arthroplasty misc Knee alignment misc Ankle malalignment misc Varus knee deformity misc Orthopedic surgery misc Diseases of the musculoskeletal system
topic_unstemmed	misc RD701-811 misc RC925-935 misc Total knee arthroplasty misc Knee alignment misc Ankle malalignment misc Varus knee deformity misc Orthopedic surgery misc Diseases of the musculoskeletal system
topic_browse	misc RD701-811 misc RC925-935 misc Total knee arthroplasty misc Knee alignment misc Ankle malalignment misc Varus knee deformity misc Orthopedic surgery misc Diseases of the musculoskeletal system
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title	The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
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title_full	The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
author_sort	Kai Xie
journal	Journal of Orthopaedic Surgery and Research
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author_browse	Kai Xie Xuequan Han Xu Jiang Songtao Ai Kerong Dai Zhifeng Yu Haishan Wu Xinhua Qu Mengning Yan
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title_sort	effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
callnumber	RD701-811
title_auth	The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
abstract	Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA.
abstractGer	Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA.
abstract_unstemmed	Abstract Background We evaluated the compensatory change in ankle alignment due to knee malalignment and its relationship with varus knee deformities, as well as sex differences in compensation. Methods From October 2016 to September 2017, 103 patients with end-stage knee osteoarthritis underwent primary total knee arthroplasty (TKA). Ninety-five knees (78 patients) were included. The hip-knee-ankle angle (HKA) and ankle alignment and tilt were evaluated with full-leg standing anteroposterior radiographs. The ankle alignment was estimated according to the tibiotalar angle, tibial anterior surface angle (TAS), and lateral distal tibial angle. The talar tilt angle (TT), anatomical talocrural angle, angle between the tibial plateau and distal tibial plafond, angles between the ground and distal tibial plafond, and angles between the ground and upper talus were measured to evaluate ankle tilt. The patients were separated into two sex-based groups; correlations between the HKA and ankle parameters were estimated. Results The mean HKA in men and women was 8.16 ± 4.36° and 7.69 ± 5.93°, respectively. The relative tilt of the talus and distal tibia plafond to the ground was increased when varus knee deformities progressed. In women, there was a positive correlation between the knee alignment and TAS (r = − 0.295, p = 0.016). As the knee mechanical axis became more varus, the distal tibia plafond became more valgus. In women, a negative correlation was observed between the HKA and TT (r = − 0.359, p = 0.003). Compensatory changes in the ankle alignment and TT to knee alignment were not observed in men. Conclusion Compensatory ankle changes should be considered before TKA.
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title_short	The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis
url	https://doi.org/10.1186/s13018-019-1191-0 https://doaj.org/article/4660c27d94c14b879d6aac58f85c3e0c http://link.springer.com/article/10.1186/s13018-019-1191-0 https://doaj.org/toc/1749-799X
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author2	Xuequan Han Xu Jiang Songtao Ai Kerong Dai Zhifeng Yu Haishan Wu Xinhua Qu Mengning Yan
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The effect of varus knee deformities on the ankle alignment in patients with knee osteoarthritis

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