The evaluation of artificial talus implant on ankle joint contact characteristics: a finite element study based on four subjects

Liu, Tao; Jomha, Nadr M.; Adeeb, Samer; El‐Rich, Marwan; Westover, Lindsey

doi:10.1007/s11517-022-02527-x

Cited by 8 publications

(15 citation statements)

References 35 publications

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“…Anderson et al [9] demonstrated the validity of FE analysis of a normal ankle by direct comparative evaluation using a cadaver model. Although previous studies have used different loading conditions [10,26], the CA and maximum CP observed in the normal ankle in this study were consistent with those reported by Anderson et al [9] under the same conditions; the CA ranged from 290.5 mm 2 to 419.9 mm 2 and the maximum CP ranged from 2.74 MPa to 3.74 MPa. Previous studies have employed FE analyses of the ankle joint [27,28]; however, most of these studies have focused on variations in CP during the gait cycle in healthy individuals [26,29] or on component loading after joint replacement [10][11][12].…”

Section: Discussionsupporting

confidence: 91%

“…Although previous studies have used different loading conditions [10,26], the CA and maximum CP observed in the normal ankle in this study were consistent with those reported by Anderson et al [9] under the same conditions; the CA ranged from 290.5 mm 2 to 419.9 mm 2 and the maximum CP ranged from 2.74 MPa to 3.74 MPa. Previous studies have employed FE analyses of the ankle joint [27,28]; however, most of these studies have focused on variations in CP during the gait cycle in healthy individuals [26,29] or on component loading after joint replacement [10][11][12]. In this study, we used patient-specific FE models to demonstrate that DTOO effectively improves the biomechanics of ankle osteoarthritis as evidenced by increased CA and redistribution of CP.…”

Section: Discussionsupporting

confidence: 91%

“…Although previous studies have used FE models to validate the therapeutic efficacy of artificial implants for ankle osteoarthritis [10][11][12] none have used FE models to investigate the pathophysiology of ankle osteoarthritis or the therapeutic efficacy of corrective osteotomy. Anderson et al [9] demonstrated the validity of FE analysis of a normal ankle by direct comparative evaluation using a cadaver model.…”

Section: Discussionmentioning

confidence: 99%

“…Previous FE models have effectively replicated the biomechanical environment of normal ankle joints, demonstrating nearly identical contact stress profiles between cadaveric and FE models [9]. Although some studies have used FE models to validate the therapeutic efficacy of artificial implants for the treatment of ankle osteoarthritis [10][11][12] to the best of our knowledge, no study has used these models to investigate the pathophysiology of ankle osteoarthritis or the efficacy of corrective osteotomy.…”

Section: Introductionmentioning

confidence: 99%

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Biomechanical Effect of Distal Tibial Oblique Osteotomy: A Preliminary Finite-Element Analysis

Sakai,

Fujii,

Kitamura

et al. 2024

Cureus

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Background: The biomechanical effect of distal tibial oblique osteotomy (DTOO) on osteoarthritic ankles has not been investigated. Using finite element (FE) models, we aimed to elucidate the effect of DTOO on the ankle contact pressure (CP) distribution.Methods: This study included two patients with ankle osteoarthritis who underwent DTOO and one asymptomatic control. Patient-specific FE models were reconstructed by matching standing radiographs with supine computed tomography scans. The joint contact area (CA) and maximum CP on the articular surface of the talus were calculated before and after DTOO and compared with those of the control.Results: In the control, the CA was 584 mm 2 and the maximum CP was 2.6 MPa. In case 1, the CA increased by 125% from 166 mm 2 preoperatively to 375 mm 2 postoperatively, accompanied by a 36% decrease in the maximum CP from 9.8 MPa to 6.3 MPa. Similarly, in case 2, the CA increased by 46% from 301 mm 2 to 439 mm 2 , accompanied by a 27% decrease in the maximum CP from 6.7 MPa to 4.9 MPa.Conclusions: This study suggests DTOO improves the biomechanics of the ankle, but not sufficiently compared to the control. This analytical approach may enhance understanding of ankle pathophysiology and assist in the design of the ideal corrective osteotomy.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biomechanical Effect of Distal Tibial Oblique Osteotomy: A Preliminary Finite-Element Analysis

Sakai,

Fujii,

Kitamura

et al. 2024

Cureus

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“…The biological models during nite element analysis of ankle hemiarthroplasty had the largest contact areas and smallest peak contact pressures [11]. Patients with high BMI ( > = 25 kg/m2) need longer treatment procedures for osteochondral lesions of the talus and have poorer 36-item short-form health survey scores at 24 months postoperation [12].…”

Section: Introductionmentioning

confidence: 99%

Different radius of curvature at the talus trochlea measured using 3D model technology

Wu,

Liu,

Huang

et al. 2024

Preprint

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BackgroundTo analyze the curvature characteristics of thetalus trochlea inpeople from Northwest China in different sex and age groups. MethodsComputed tomography scanning data of talus from 61 specimens were collected and constructed as a three-dimensional model by MIMICS software, anteromedial(AM), posteromedial(PM), anterolateral(AL), and posterolateral(PL) edge, anterior edge of medial trochlea, posterior edge of medial trochlea and anterior edge of lateral trochlea were defined according to the anatomical landmarks on trochlear surface. The curvature radii for different areas were measured using the fitting radius and measure module. Results There were significant differences among the talus curvatures in the six areas (F=54.905, P=0.000), and more trends in the analytical results were as follows: PM > PL > MP > AL > MA > AM. The average posterolateral radius from specimens aged >38 years old was larger than that from specimens aged<=38 years (t=-2.303, P =0.038). The talus curvature of the AM for males was significantly larger than that for females (t=4.25, P=0.000), and the curvature of the AL for males was larger than that for females (t=2.629, P =0.010). For observers aged <=38 years, the AM curvature of the right talus in the male group was significantly larger than thatin the female group (P<0.01). In age <=38years group, the MA curvature of right talus in male was significantly larger than in female group(P<0.01), fitting radius of talus for male (21.90±1.97 mm) was significantly greater than female of this(19.57±1.26 mm)(t=6.894, P=000). The average radius of the talus in the male population was larger than that in the female population. Conclusion There was no significant relationship between age and talus curvature in either males or females. The radius of curvature in the posterior area was significantly larger than that in the anterior area. We recommend that this characteristic of the talus trochlea should be considered when designingthe talus component in total ankle replacement (TAR).

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Development and validation of a novel ankle joint musculoskeletal model

Liu,

Dimitrov,

Jomha

et al. 2024

Med Biol Eng Comput

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The evaluation of artificial talus implant on ankle joint contact characteristics: a finite element study based on four subjects

Cited by 8 publications

References 35 publications

Biomechanical Effect of Distal Tibial Oblique Osteotomy: A Preliminary Finite-Element Analysis

Biomechanical Effect of Distal Tibial Oblique Osteotomy: A Preliminary Finite-Element Analysis

Different radius of curvature at the talus trochlea measured using 3D model technology

Development and validation of a novel ankle joint musculoskeletal model

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