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.Abstract
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
650,000 Euro funding for research into the phasing out of medication for leukaemia patients30 July 2020
With a 650,000 euro funding from ZonMw, researchers from the Haematology and Pharmacy departments can develop a medication phasing out strategy for patients with chronic myeloid leukaemia. This strategy will be tested in practice.read more
Increased role of patients after bowel cancer treatment30 July 2020
Approximately 14,000 patients get colorectal cancer every year. Almost all patients are operated on and monitored afterwards (follow-up). In 2019 Radboudumc started a new approach to follow-up research after the treatment of stage II/III colorectal cancer.read more
Hypatia fellowship Call is open30 July 2020
The Hypatia fellowship round with the deadline 31 May has been canceled. Therefore, the next available deadline will be 27 September 2020. Radboudumc researchers are invited to scout young potentials to fill the strategic gaps within the research themes imbedded in RIHS and RIMLS.read more
Mihai Netea and colleagues published two papers back-to-back in The Journal of Clinical Investigation.29 July 2020
These back-to-back articles investigated the effect of BCG vaccination on trained immunity. The first article shows that BCG vaccination inhibits systemic inflammation, depending on gender. The second article demonstrates that the circadian rhythm influences the induction of trained immunity.read more
Improved method for detecting lung cancer24 July 2020
Radboudumc researchers are the only ones in the Netherlands using a new method to make better lung cancer diagnoses earlier stage. Erik van der Heijden and Roel Verhoeven shows that the use of flexible imaging equipment via the natural respiratory tract contributes to a more accurate diagnosis.read more
Optimizing workup in head and neck cancer (HNC)23 July 2020
In the journal Cancer RIHS researcher Henrieke Schutte described the outcomes after the implementation of a fast-track multidisciplinary integrated HNC care program: time-to-treatment was significantly reduced and survival and patient satisfaction increased significantly without increasing costs.read more