UHCW publication: Prevalence of cam hip shape morphology: a systematic review.

Prevalence of cam hip shape morphology: a systematic review.
Osteoarthritis Cartilage. 2016 Jun;24(6):949-61
Dickenson E, Wall PD, Robinson B, Fernandez M, Parsons H, Buchbinder R, Griffin DR


ABSTRACT
OBJECTIVE: Cam hip shape morphology is a recognised cause of femoroacetabular impingement (FAI) and is associated with hip osteoarthritis. Our aim was to systematically review the available epidemiological evidence assessing the prevalence of cam hip shape morphology in the general population and any studied subgroups including subjects with and without hip pain. DESIGN: All studies that reported the prevalence of cam morphology, measured by alpha angles, in subjects aged 18 and over, irrespective of study population or presence of hip symptoms were considered for inclusion. We searched AMED, MEDLINE, EMBASE, CINAHL and CENTRAL in October 2015. Two authors independently identified eligible studies and assessed risk of bias. We planned to pool data of studies considered clinically homogenous. RESULTS: Thirty studies met inclusion criteria. None of the included studies were truly population-based: three included non-representative subgroups of the general population, 19 included differing clinical populations, while eight included professional athletes. All studies were judged to be at high risk of bias. Due to substantial clinical heterogeneity meta analysis was not possible. Across all studies, the prevalence estimates of cam morphology ranged from 5 to 75% of participants affected. We were unable to demonstrate a higher prevalence in selected subgroups such as athletes or those with hip pain. CONCLUSIONS: There is currently insufficient high quality data to determine the true prevalence of cam morphology in the general population or selected subgroups. Well-designed population-based epidemiological studies that use homogenous case definitions are required to determine the prevalence of cam morphology and its relationship to hip pain.


Read full text at: https://www.oarsijournal.com/article/S1063-4584(16)00005-4/fulltext

UHCW publication: Effect of a lateral glide mobilisation with movement of the hip on vibration threshold in healthy volunteers

Effect of a lateral glide mobilisation with movement of the hip on vibration threshold in healthy volunteers.
Smith, Darren A; Saranga, Jacob; Pritchard, Andrew; Kommatas, Nikolaos A; Punnoose, Shinu Kovelal; et al.
Journal of bodywork and movement therapies Vol. 22, Iss. 1, (January 2018): 13-17.


Abstract

Background
Mulligan's mobilisation-with-movement (MWM) techniques are proposed to achieve their clinical benefit via neurophysiological mechanisms. However, previous research has focussed on responses in the sympathetic nervous system only, and is not conclusive. An alternative measure of neurophysiological response to MWM is required to support or refute this mechanism of action. Recently, vibration threshold (VT) has been used to quantify changes in the sensory nervous system in patients experiencing musculoskeletal pain.

Objective
To investigate the effect of a lateral glide MWM of the hip joint on vibration threshold compared to a placebo and control condition in asymptomatic volunteers.

Methods
Fifteen asymptomatic volunteers participated in this single-blinded, randomised, within-subject, placebo, control design. Participants received each of three interventions in a randomised order; a lateral glide MWM of the hip joint into flexion, a placebo MWM, and a control intervention. Vibration threshold (VT) measures were taken at baseline and immediately after each intervention. Mean change in VT from baseline was calculated for each intervention and then analysed for between group differences using a one-way analysis of variance (ANOVA).

Results
A one-way ANOVA revealed no statistically significant differences between the three experimental conditions (P = 0.812).

Conclusion
This small study found that a lateral glide MWM of the hip did not significantly change vibration threshold compared to a placebo and control intervention in an asymptomatic population. This study provides a method of using vibration threshold to investigate the potential neurophysiological effects of a manual therapy intervention that should be repeated in a larger, symptomatic population.

RCOT announces revised guidelines for occupational therapy and total hip replacement

The Royal College of Occupational Therapists (RCOT) is delighted to announce the publication of the second edition of the practice guidelines for working with people undergoing total hip replacement. Endorsed by the British Hip Society, the new guidelines recognise in particular the changes in length of recommended stay for patients as well as the fact that this surgery is increasingly being performed on younger patients.
https://www.rcot.co.uk/practice-resources/rcot-practice-guidelines/hip