19 June 2018

Ruud Leijendekkers, Nico Verdonschot and colleagues published an article in PLoS One on the existing asymmetry in gait parameters and hip muscle strength weakness in women with developmental dysplasia following hip arthroplasty.

Introduction: Untreated unilateral developmental dysplasia of the hip (DDH) results in asymmetry of gait and hip strength and may lead to early osteoarthritis, which is commonly treated with a total hip arthroplasty (THA). There is limited knowledge about the obtained symmetry of gait and hip strength after the THA. The objectives of this cross-sectional study were to: a) identify asymmetries between the operated and non-operated side in kinematics, kinetics and hip strength, b) analyze if increased walking speed changed the level of asymmetry in patients c) compare these results with those of healthy subjects.
Methods: Women (18±70 year) with unilateral DDH who had undergone unilateral THA were eligible for inclusion. Vicon gait analysis system was used to collect frontal and sagittal plane kinematic and kinetic parameters of the hip joint, pelvis and trunk during walking at comfortable walking speed and increased walking speed. Furthermore, hip abductor and extensor muscle strength was measured.
Results: Six patients and eight healthy subjects were included. In the patients, modest asymmetries in lower limb kinematics and kinetics were present during gait, but trunk lateral flexion asymmetry was evident. Patients' trunk lateral flexion also differed compared to healthy subjects. Walking speed did not significantly influence the level of asymmetry. The hip abduction strength asymmetry of 23% was not statistically significant, but the muscle strength of both sides were significantly weaker than those of healthy subjects.
Conclusions: In patients with a DDH treated with an IBG THA modest asymmetries in gait kinematics and kinetics were present, with the exception of a substantial asymmetry of the trunk lateral flexion. Increased walking speed did not result in increased asymmetries in gait kinematics and kinetics. Hip muscle strength was symmetrical in patients, but significantly weaker than in healthy subjects. Trunk kinematics should be included as an outcome measure to assess the biomechanical benefits of the THA surgery after DDH.

Gait symmetry and hip strenght in women with developmental dysplasia following hip arthroplasty compared to healthy subjects: A cross-sectional study
Leijendekkers RA, Marra MA, Kolk S, van Bon G, Schreurs BW, Weerdesteyn V, Verdonschot N.

Ruud Leijendekkers and Nico Verdonschot are both members of theme Reconstructive and regenerative medicine

Related news items

Blog: Species Differences The Elephant in the Room

17 January 2019

Read the blog of Merel Ritskes-Hoitinga in the New England anti-vivisection society (neavs) based on a paper published in the Journal of Translational Medicine.

read more

Bart-Jan Kullberg nominated for ZonMw Medical Inspirator Award

17 January 2019

This prize is awarded for the most inspiring collaboration between patients and medical researchers. You can vote till 11 February.

read more

Richard Grol Award for Heather Whitson

17 January 2019

RIHS has awarded the Richard Grol Visiting Scientist Award 2018 to Heather Whitson, Associate Professor of Medicine with Tenure in the Duke University School of Medicine in Durham, North Carolina, USA.

read more

Annual CaRe days 8 & 9 May 2019

17 January 2019

The CaRe days provides an inspiring program for all RIHS researchers. Program is online and registration is open.

read more

RIMLS awards festival Twelve winners

16 January 2019

In 5 categories RIMLS young researchers received an award and bonus during the New Year's drinks. See all photo's.

read more

Cycling the Tour de France for the Radboud Oncology Fund

15 January 2019

It's a boy's dream: cycling the Tour de France. Bart Kiemeney, RIHS director and chairman of the Radboud Oncology Fund, wants to do it.

read more
  • Go to