Radius of curvature at the talocrural joint surface: inference of subject-specific kinematics.
Purpose: The coupled behavior of talocrural joint motion is primarily determined by the morphological features of the talar trochlea and tibiofibular mortise. Features of the radius of curvature of the talocrural joint, however, remain unclear. The objectives of this study were to evaluate the radiu...
| Publicado en: | Surgical & Radiologic Anatomy Vol. 41; no. 1; pp. 53 - 65 |
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| Autores principales: | , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Jan2019
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=134564379&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 134564379 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09301038 O1L jtl: Surgical & Radiologic Anatomy issn: 09301038 maglogo: N pubinfo: dt: Jan2019 vid: 41 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 134564379 10.1007/s00276-018-2098-x 134564379 ppf: 53 ppct: 12 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Radius of curvature at the talocrural joint surface: inference of subject-specific kinematics. aug: au: Kato, Takuya Nozaki, Shuhei Miyakawa, Tsuyoshi Kamiya, Tomoaki Watanabe, Kota Katayose, Masaki affil: Center of Sports Medicine, Hokkaido Obihiro Kyokai Hospital, South-9, East-5, 080-0805, Obihiro, Hokkaido, Japan sug: ab: Purpose: The coupled behavior of talocrural joint motion is primarily determined by the morphological features of the talar trochlea and tibiofibular mortise. Features of the radius of curvature of the talocrural joint, however, remain unclear. The objectives of this study were to evaluate the radius of curvature at the mid, medial, and lateral regions of both the talar trochlea and the tibial plafond, and to estimate subject-specific kinematics of the talocrural joint.Methods: Computed tomography images of 44 subjects with healthy talocrural joints were assessed by creating three-dimensional bone models. The radii of curvature of the anterior and posterior regions at the mid, medial, and lateral regions of both the talar trochlea and the tibial plafond were calculated. Hypothetical dorsiflexion and plantarflexion axes of the talocrural joint were estimated from the shape of the talar trochlea. Orientations and distances of these axes were calculated.Results: At both the talar trochlea and the tibial plafond, the anteromedial and posteromedial radii exhibited the largest coefficients of variation. The anterior-to-posterior radius ratio (APRR) of the medial talar trochlea significantly correlated with the mid APRR, anterior medial-to-lateral radius ratio (MLRR), and posterior MLRR of the trochlea (r = 0.45, 0.52, − 0.60, respectively, and all P < 0.01).Conclusions: The asymmetric shape of the medial talar trochlea seems to determine a fixed or changing axis of rotation at the talocrural joint. This subject-specific rotational axis of the talocrural joint should be considered in the management of patients with ankle injuries. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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