Roussouly's sagittal spino-pelvic morphotypes as determinants of gait in asymptomatic adult subjects.
TypeArticles dans des revues avec comité de lecture
Sagittal alignment is known to greatly vary between asymptomatic adult subjects; however, there are no studies on the possible effect of these differences on gait. The aim of this study is to investigate whether asymptomatic adults with different Roussouly sagittal alignment morphotypes walk differently. Ninety-one asymptomatic young adults (46M & 45W), aged 21.6±2.2years underwent 3D gait analysis and full body biplanar X-rays with three-dimensional (3D) reconstructions of their spines and pelvises and generation of sagittal alignment parameters. Subjects were divided according to Roussouly's sagittal alignment classification. Sagittal alignment and kinematic parameters were compared between Roussouly types. 17 subjects were classified as type 2, 47 as type 3, 26 as type 4 but only 1 as type 1. Type 2 subjects had significantly more mean pelvic retroversion (less mean pelvic tilt) during gait compared to type 3 and 4 subjects (type 2: 8.2°; type 3:11.2°, type 4: 11.3°) and significantly larger ROM pelvic obliquity compared to type 4 subjects (type 2: 11.0°; type 4: 9.1°). Type 2 subjects also had significantly larger maximal hip extension during stance compared to subjects of types 3 and 4 (type 2: -11.9°; type 3: -8.8°; type 4: -7.9°) and a larger ROM of ankle plantar/dorsiflexion compared to type 4 subjects (type 2: 31.1°; type 4: 27.9°). Subjects with type 2 sagittal alignment were shown to have a gait pattern involving both increased hip extension and pelvic retroversion which could predispose to posterior femoroacetabular impingement and consequently osteoarthritis.
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How the type of sagittal alignment dfined by Roussouly determines the gait of asymptomatic adult subject ASSI, Ayman; BAKOUNY, Ziad; MASSAAD, Abir; LAFAGE, Virginie; SAGHBINI, Elie; KREICHATI, Gaby; SKALLI, Wafa; GHANEM, Ismat (ELSEVIER, 2016)While curvatures of the sagittal spine are known to greatly differ among asymptomatic adult subjects, there are no studies that determine whether this heterogeneous normality affects gait. This study aimed to elucidate the ...
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ASSI, Ayman; BAKOUNY, Ziad; BIZDIKIAN, Aren Joe; OTAYEK, Jeoffrey; YARED, Fares; LAFAGE, Virginie; KHALIL, Nour; MASSAAD, Abir; GHANEM, Ismat; SKALLI, Wafa (ELSEVIER, 2018)Patients with adult spinal deformities (ASD) are known to have altered postural alignment aﬀecting their quality of life and activities of daily living, especially gait. The Sagittal Vertical Axis (SVA), a postural parameter ...
How do postural parameters vary during walking in asymptomatic adults? A registration technique of subject-speciﬁc 3D skeletal reconstruction during gait ASSI, Ayman; BAKOUNY, Ziad; YARED, Fares; OTAYEK, Joeffroy; BIZDIKIAN, Aren Joe; GHANEM, Ismat; KREICHATI, Gaby; PILLET, Hélène; BONNET, Xavier; SKALLI, Wafa (ELSEVIER, 2018)Postural skeletal alignment is altered with age due to intervertebral disc and joint degeneration, consequently aﬀecting quality of life (QoL) and activities of daily living, such as gait. Postural alignment parameters of ...
Influence of patient rotational malpositioning on pelvic parameters assessed on lateral radiographs ASSI, Ayman; SAURET, Christophe; BAKOUNY, Ziad; SAGHBINI, Elie; KHALIL, Nour; CHELALA, Lydia; NAOUM, Elias; YARED, Fares; SKALLI, Wafa; GHANEM, Ismat (Elsevier BV, 2017)Aim: To estimate the effect of patients' axial rotation (AR) during pelvic radiograph acquisition, on the reliability and validity of sagittal pelvic parameters. Materials and methods: Lateral digitally reconstructed ...