In vivo three-dimensional analysis of hindfoot kinematics in stage II PTTD flatfoot

Xu, Jian; Zhang, Yijun; Muhammad, Hassan; Wang, X.u.; Huang, Jiazhang; Zhang, Chao; Geng, Xin; Ma, Xin

doi:10.1007/s00776-015-0698-4

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…There was no significant difference in stage II flatfoot and normal calcaneocuboid joint motion throughout the phase. This is consistent with the conclusions regarding the subtalar and talonavicular joint instability derived from quasi-static studies of stage II AAFD [ 17 ].…”

Section: Discussionsupporting

confidence: 91%

“…Our study, by utilizing the advanced three dimensional (3D)-to-two dimensional (2D) registration technique as well [11,[16][17][18][19], aimed to verify the accuracy and repeatability of this technique, investigate the motion characteristics of hindfoot joints in the stance phase more comprehensively based on the above mentioned 5 events in stage II AAFD. Understanding the biomechanics of the hindfoot is critical to the proper care of patients with a variety of orthopedic impairments and foot deformities resulting from conditions such as cerebral palsy, spina bififida, club foot, traumatic brain injury and spinal cord injury [20,21].…”

Section: Introductionmentioning

confidence: 99%

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Comparison of in vivo hindfoot joints motion changes during stance phase between non‐flatfoot and stage II adult acquired flatfoot

Deng

Cai

Chen

et al. 2022

Journal of Foot and Ankle Research

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Background To compare the kinematic characteristics of hindfoot joints in stage II adult acquired flatfoot deformity (AAFD) with those of non-flatfoot through the 3D-to-2D registration technology and single fluoroscopic imaging system. Methods Eight volunteers with stage II AAFD and seven volunteers without stage II AAFD were recruited and CT scans were performed bilateral for both groups in neutral positions. Their lateral dynamic X-ray data during the stance phase, including 14 non-flatfeet and 10 flatfeet, was collected. A computer-aided simulated light source for 3D CT model was applied to obtain the virtual images, which were matched with the dynamic X-ray images to register in the “Fluo” software, so that the spatial changes during the stance phase could be calculated. Results During the early-stance phase, the calcaneous was more dorsiflexed, everted, and externally-rotated relative to the talus in flatfoot compared with that in non-flatfoot (p < 0.05). During the mid-stance phase, the calcaneous was more dorsiflexed and everted relative to the talus in flatfoot compared with that in non-flatfoot (p < 0.05); however, the rotation did not differ significantly between the two groups (p > 0.05). During the late-stance phase, the calcaneous was more plantarflexed, but less inverted and internally-rotated, relative to the talus in flatfoot compared with that in non-flatfoot (p < 0.05). During the early- and mid-stance phase, the navicular was more dorsiflexed, everted, and externally-rotated relative to the talus in flatfoot compared with that in non-flatfoot (p < 0.05). During the late-stance phase, the navicular was more plantarflexed, but less inverted and internally-rotated, relative to the talus in flatfoot compared with that in non-flatfoot (p < 0.05). There was no difference in the motion of cuboid between the two groups during the whole stance phase (p > 0.05). Conclusions During the early- and mid-stance phase, excessive motion was observed in the subtalar and talonavicular joints in stage II AAFD. During the late-stance phase, the motion of subtalar and talonavicular joints appeared to be in the dysfunction state. The current study helps better understanding the biomechanics of the hindfoot during non-flatfoot and flatfoot condition which is critical to the intervention to the AAFD using conservative treatment such as insole or surgical treatment for joint hypermotion.

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Comparison of in vivo hindfoot joints motion changes during stance phase between non‐flatfoot and stage II adult acquired flatfoot

Deng

Cai

Chen

et al. 2022

Journal of Foot and Ankle Research

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“…There was no signi cant difference in stage II atfoot and normal calcaneocuboid joint motion throughout the touchdown phase. This is also consistent with the conclusions regarding subtalar and talonavicular joint instability derived from quasi-static studies of stage II atfoot [10].…”

Section: Discussionsupporting

confidence: 90%

In Vivo Analysis of Hindfoot Joints Movement During Stance Phase in Stage Ⅱ Adult Acquired Flatfoot Deformity

Deng

Cai

et al. 2021

Preprint

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Background This study aims to compare the kinematic characteristics of hindfoot joints of stage Ⅱ adult acquired flatfoot deformity (AAFD) and normal foot through two-dimension (2D) -three-dimension (3D) registration technology and a single fluoroscopic imaging system, thus to provide research basis to the pathogenesis, diagnosis and treatment of AAFD. Methods Then seven normal volunteers and eight volunteers with stage Ⅱ AAFD were recruited to take the CT scans for their bilateral feet in neutral positions, after that their lateral dynamic X-ray data during stance phase were collected including fourteen normal feet and ten flatfeet. A computer-aided simulated light source for 3D CT model was applied to obtain a virtual image, and it is matched with the dynamic X-ray images to make a registration in “Fluo” software, by which finally the spatial changes during the stance phase can be calculated. Results In the early stage of touching the ground and the middle stage of standing, the extension and external rotation valgus of the navicular bone of the flat foot was compared with that of the normal navicular bone, and there was no significant difference in the extension and external rotation valgus of the calcaneus between the cuboid phase and the normal navicular bone. In the late stance phase, the degree of varus relative to the distance of the navicular bone was smaller in the flat foot than in the normal foot but the degree of metatarsal flexion was not significantly different between the cuboid and the calcaneus, and the degree of varus was smaller in the calcaneus but the degree of metatarsal flexion was greater. Conclusion During the early and mid-stance phase, there are excessive motion in the subtalar and talonavicular joints in stage Ⅱ AAFD. During the late stance phase, the motion of subtalar and talonavicular joints are in the decompensated state. During the whole stance phase, the motion of calcaneocuboid joint has no significant difference in both normal foot and stage Ⅱ AAFD.

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“…Both the first metatarsal and medial cuneiform in unloaded condition (i.e., the moving bone) were matched to the corresponding bones in loaded condition (i.e., the stationary target) through global registration [ 12 , 13 ] (Fig. 3 ).…”

Section: Methodsmentioning

confidence: 99%

“…The accuracy of this method was 0.1 mm in translation and 0.1° in rotation [ 12 , 13 , 18 ], and in this study, deviation analysis was performed to verify the accuracy of each registration (Fig. 4 ).…”

Section: Methodsmentioning

confidence: 99%

Mobility of the first metatarsal-cuneiform joint in patients with and without hallux valgus: in vivo three-dimensional analysis using computerized tomography scan

Geng

Wang

et al. 2015

J Orthop Surg Res

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BackgroundHallux valgus (HV) deformity is closely correlated to the hypermobility of the first metatarsal-cuneiform joint, but adequate understanding of the three-dimentional (3D) mobility of this joint in normal or HV feet is lacking. This study was conducted to investigate the mobility of the first metatarsal-cuneiform joint in multiple planes during body weight-bearing conditions for both normal and HV patients.MethodsA total of 10 female volunteers (20 feet) and 10 female HV patients (20 feet) participated in this study. Using a custom-made foot-loading device, computerized tomography (CT) scans of each pair of feet were taken under both unloaded and body weight-bearing conditions. 3D models were reconstructed for the first metatarsal and the medial cuneiform. Rotational and translational motions of the first metatarsal-cuneiform joint in multiple planes from unloaded to loaded conditions were quantitatively evaluated by reverse-engineering software.ResultsDuring body weight-bearing conditions, the first metatarsal-cuneiform joint in HV feet dorsiflexed at an average of 2.91° (standard deviation, SD 1.71) versus 1.18° (SD 0.47) in controls (t = 4.158, P = 0.001); supinated 2.17° (SD 2.28) versus 0.98° (SD 0.81) in controls (t = 2.080, P = 0.045); and internally rotated 2.65° (SD 2.22) versus 0.96° (SD 0.57) in controls (t = 3.114, P = 0.006). Moreover, the joint in HV feet widened significantly compared with the controls (t = 2.256, P = 0.030) and tended to translate more in the dorsal-plantar direction (t = 1.928, P = 0.063); the translation in the medial-lateral direction was not significantly different between the two groups.ConclusionsDuring weight-loading process, the first metatarsal-cuneiform joint turns dorsiflexed, supinated, and internally rotated. For HV feet, hypermobility of the first metatarsal-cuneiform joint can be observed in multiple planes. This study promotes further understanding of the physiological and pathological mobility of the first metatarsal-cuneiform joint.

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In vivo three-dimensional analysis of hindfoot kinematics in stage II PTTD flatfoot

Cited by 9 publications

References 29 publications

Comparison of in vivo hindfoot joints motion changes during stance phase between non‐flatfoot and stage II adult acquired flatfoot

Comparison of in vivo hindfoot joints motion changes during stance phase between non‐flatfoot and stage II adult acquired flatfoot

In Vivo Analysis of Hindfoot Joints Movement During Stance Phase in Stage Ⅱ Adult Acquired Flatfoot Deformity

Mobility of the first metatarsal-cuneiform joint in patients with and without hallux valgus: in vivo three-dimensional analysis using computerized tomography scan

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