Home' OsteoLife : OsteoLife Winter 2015 Contents 24 Osteopathy Australia
ACCORDING TO A UNIVERSITY OF
Florida study, higher levels of vitamin D may
decrease pain and improve function in
obese individuals with osteoarthritis.
Findings published in The Clinical Journal
of Pain indicate that obese individuals
who suffer from osteoarthritis and have
adequate vitamin D levels could walk,
balance and rise from sitting to standing
better than obese participants with
insufficient vitamin D levels. The findings
suggest an association between obesity and
vitamin D status for tasks such as standing
from a seated position.
The researchers analysed blood samples
for vitamin D levels from a racially diverse
group of 256 middle-aged and older adults.
Participants also provided a self-report of knee
osteoarthritis pain and completed functional
performance tasks such as balance, walking
and rising from sitting to standing. This study
was part of a larger project that studies racial
and ethnic differences in pain in individuals
with osteoarthritis. Among the 126 obese
participants, 68 were vitamin
D-deficient, while only 29 of the 130
non-obese participants were deficient,
suggesting obesity is significantly associated
with clinically relevant vitamin D deficiency.
The Institute of Medicine recommends
that adults aged 18-70 get 600
international units of vitamin D per day and
adults over 71 get at least 800 international
units of vitamin D per day. For context, a
230ml glass of fortified milk contains about
100 international units of calcium. Foods
rich in vitamin D include salmon, tuna,
sardines, shrimp, mushrooms, egg yolks
and foods fortified with vitamin D, such as
milk and some cereals, yoghurts and orange
juices. The body also produces vitamin D
through sun exposure, although it can be
hard to get enough from the sun alone,
particularly during the winter months and
sunscreens block the vitamin's production.
Source: Medical News Today, 2015
SPINAL SURGERY CONCERNS
DESPITE THE GROWTH IN SURGICAL TREATMENT FOR LUMBAR SPINAL
stenosis (LSS) in Australia, new research suggests physical therapy is equally effective.
In a US study, 169 patients aged 50 years and over were split into two groups, based on whether
they’d had surgery or physical therapy. Researchers found that both groups began to experience
improved physical functioning at 10 weeks, and that improvements were maintained at the study’s
two-year end point.
Rates of treatment success were similar between the groups, with 61 per cent of patients who
underwent surgery experiencing clinically meaningful improvement, compared with 52 per cent who
received physical therapy alone and 55 per cent who crossed over from physical therapy to surgery.
In Australia, the rate of privately performed surgery for LSS increased by 167 per cent between
1997 and 2006. While the US researchers suggested that patients with LSS “should be offered a
rigorous, standardised PT regimen”, two Australian experts cautioned that both surgery and PT
may be no better than placebo for LSS.
Professor Rachelle Buchbinder, a rheumatologist and director of the Monash Department of
Clinical Epidemiology, and Associate Professor Manuela Ferreira, a physiotherapist and senior
research fellow at the George Institute in Sydney, told the Medical Journal of Australia that both
treatments needed to be compared with placebo in rigorous trials.
They estimated that around 65,000 partial and total laminectomies were performed in the
private and public sectors in Australia in 2014 – a sizeable proportion of which would be for LSS
(based on unpublished figures from health insurers as well as Medicare data).
They said the latest study might have been too short to see any increased risk of further spine
surgery as a result of having the initial surgery. Source: Medical Journal Australia
A REVIEW OF DATA FROM 40
studies conducted over the past 30 years
has confirmed an association between bladder
cancer and coffee consumption.
The meta-analysis of over 15,000 cases of
bladder cancer and 250,000 controls found a
33 per cent increase in the risk of the disease
among coffee drinkers. Researchers from
Huazhong University in Hubei, China, say
the association is dose-dependent, with an
increase of one cup per day adding three to
five per cent to the risk of bladder cancer.
The increased risk held even after adjusting
for a range of possible confounders, including
age, BMI and tea
Male coffee drinkers
had a higher risk than women and non-smokers
were at more risk than smokers. Researchers
speculated that this could be because tobacco
smoke speeds up the metabolism of caffeine,
which is potentially implicated in the increased
risk of bladder cancer.
The study is the first to pool data from 30
years of research. Coffee contains a number
of possible bladder carcinogens, including
caffeine, polycyclic aromatic hydrocarbons
and nitrosamines. Source: 6minutes
COFFEE LINKED TO
2/06/2015 3:31 pm
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