• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)
  • View Item
  • Home
  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Combining acetabular and femoral morphology improves our understanding of the down syndrome hip.

Type
Articles dans des revues avec comité de lecture
Author
BAKOUNY, Ziad
301405 Université Saint-Joseph de Beyrouth [USJ]
ASSI, Ayman
1001017 Institut de Biomecanique Humaine Georges Charpak [IBHGC]
YARED, Fares
301405 Université Saint-Joseph de Beyrouth [USJ]
KHALIL, Nour
301405 Université Saint-Joseph de Beyrouth [USJ]
MANSOUR, Elie
301405 Université Saint-Joseph de Beyrouth [USJ]
YAACOUB, Jean-Jacques
301405 Université Saint-Joseph de Beyrouth [USJ]
SKALLI, Wafa
1001017 Institut de Biomecanique Humaine Georges Charpak [IBHGC]
GHANEM, Ismat
301405 Université Saint-Joseph de Beyrouth [USJ]

URI
http://hdl.handle.net/10985/18208
DOI
10.1016/j.clinbiomech.2018.07.016.
Date
2018
Journal
Clinical Biomechanics

Abstract

Background: Hip instability is frequent in patients with Down syndrome. Recent studies have suggested that skeletal hip alterations are responsible for this instability; however, there are currently no studies simultaneously assessing femoral and acetabular anatomy in subjects with Down syndrome in the standing position. The aim was to analyze the three-dimensional anatomy of the Down syndrome hip in standing position. Methods: Down syndrome subjects were age and sex-matched to asymptomatic controls. All subjects underwent full body biplanar X-rays with three-dimensional reconstructions of their pelvises and lower limbs. Parameter means and distributions were compared between the two groups. Findings: Forty-one Down syndrome and 41 control subjects were recruited. Acetabular abduction (mean=52° [SD=9°] vs. mean=56° [SD=8°]) and anteversion (mean=14° [SD=8°] vs. mean=17.5° [SD=5°]) as well as posterior acetabular sector angle (mean=91° [SD=7°] vs. mean=94° [SD=7°]) were significantly lower in Down syndrome subjects compared to controls (P < 0.01). Anterior acetabular sector angle (mean=62° [SD=10°] vs. mean=59° [SD=7°]; P < 0.01) was significantly higher in Down syndrome compared to controls. The distributions of acetabular anteversion (P=0.002;V=0.325), femoral anteversion (P=0.004;V=0.309) and the instability index (P < 0.001;V=0.383) were significantly different between the two groups, with subjects with Down syndrome having both increased anteversion and retroversion for each of these parameters. Interpretation: Subjects with Down syndrome were found to have a significantly altered and more heterogeneous anatomy of their proximal hips compared to controls. This heterogeneity suggests that treatment strategies of hip instability in Down syndrome should be subject-specific and should rely on the understanding of the underlying three-dimensional anatomy of each patient.

Files in this item

Name:
IBHGC_CB_2018_ ASSI.pdf
Size:
877.4Kb
Format:
PDF
Description:
Article
View/Open

Collections

  • Institut de Biomécanique Humaine Georges Charpak (IBHGC)

Related items

Showing items related by title, author, creator and subject.

  • 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 ...
  • Variation of the sagittal vertical axis during walking and its determinants 
    ASSI, Ayman; BAKOUNY, Ziad; BIZDIKIAN, Aren Joe; OTAYEK, Joeffroy; 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 ...
  • Validity and reliability of different techniques of neck–shaft angle measurement 
    BIZDIKIAN, Aren Joe; ASSI, Ayman; BAKOUNY, Ziad; SAGHBINI, Elie; BAKHOS, G. E.; ESBER, S.; KHALIL, Nour; OTAYEK, Joeffroy; GHANIMEH, Joe; SAURET, Christophe; SKALLI, Wafa; GHANEM, Ismat (Elsevier, 2018)
    AIM: To determine a valid and reliable neck-shaft angle (NSA) measurement method while rotating the pelvises in increments of 5° in order to simulate patient malpositioning. MATERIALS AND METHODS: CT images of 17 patients ...
  • Alterations of 3D acetabular and lower limb parameters in adolescent idiopathic scoliosis 
    KARAM, Mohammad; BIZDIKIAN, Aren Joe; KHALIL, Nour; BAKOUNY, Ziad; OBEID, Ibrahim; GHANIMEH, Joe; LABAKI, Chris; MJAESS, Georges; KARAM, Aya; SKALLI, Wafa; KHARRAT, Khalil; GHANEM, Ismat; ASSI, Ayman (Springer, 2020)
    Purpose: To evaluate the 3D deformity of the acetabula and lower limbs in subjects with adolescent idiopathic scoliosis (AIS) and their relationship with spino-pelvic alignment. Methods: Two hundred and seventy-four subjects ...
  • O 095—How do postural parameters vary during gait in children with cerebral palsy? A 3D subject-specific skeletal segment registration technique 
    MASSAAD, Abir; ASSI, Ayman; BIZDIKIAN, Aren Joe; BAKOUNY, Ziad; KHALIL, Nour; GHANEM, Ismat; PILLET, Hélène; BONNET, Xavier; SKALLI, Wafa (ELSEVIER, 2018)
    Postural parameters, calculated in static position on frontal and sagittal radiographs, are altered in ambulant children with cerebral palsy (CP) and are known to be related to gait abnormalities [1,2]. Most of these ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales