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To assess the changes in pain and pain sensitisation among obese individuals with knee pain going through the bariatric surgery compared with identically obese persons going through medical management.
Weight loss from
bariatric surgery diminishes many illnesses, including type-2 diabetes,
hypertension, and Knee pain. But it is not clear that pain relief after weight
loss is solely related to decreased mechanical loading. Therefore, Stefanik JJ
et al. demonstrated that individuals who underwent bariatric surgery showed an
improvement in pain sensitization, reflected by improvements in Pressure pain
threshold (PPT).
To assess the changes in pain and pain sensitisation among obese
individuals with knee pain going through the bariatric surgery compared with
identically obese persons going through medical management.
The subjects going through medical management and bariatric surgery were
selected. WOMAC was used to assess the
knee pain severity of the more painful knee (index knee) at baseline and one
year. Pressure pain threshold (PPT) was determined at the right wrist and the
index patella. Low wrist PPT may reflect central sensitisation and low patella
PPT may reflect peripheral and/or central sensitisation mean change in estimate
of pain and pain sensitisation evaluated in the medical management and surgery
group separately.
The analysis was completed by a total of 22, and 45 participants went
through medical management and surgery groups, respectively. The mean weight
loss by the participants of medical management and surgery groups was 4.6 and 32.7
kilograms, respectively. Only the surgery group showed a reduction in knee
pain. The patients of the surgery group showed 30.9% and 38.5% improvement in the PPT at the wrist and
patella, respectively. Medical management group exhibited no change in the PPT.
Bariatric surgery is associated with improved pain sensitisation and
central sensitisation.
Arthritis Care Res (Hoboken).2018 Jan 5.
Changes in Pain Sensitization after Bariatric Surgery.
Stefanik JJ et al.
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