Information for Medical Professionals
Obesity has 'poor impact' on total knee replacement outcomes
A new study has found that obesity can have a negative impact on the outcome of total knee replacement operations.
Research published in the Journal of Bone and Joint Surgery has found that mid-term survivability is comparable between obese patients and those of a healthy weight, although the improvements in clinical scores were less significant in the former.
The study examined 535 total knee replacement patients with a mean follow-up of 9.2 years which were divided according to weight and considered on a case-matched basis.
No difference was found between the groups in radiological osteolysis, lucent lines or alignment.
"Good results and high patient satisfaction are still to be expected and it would seem unreasonable to deny patients a [total knee replacement] simply on the basis of a [body mass index] indicating obesity," the authors conclude.
Recent research published in the Journal of Bone and Joint Surgery has found that cemented total knee replacements are more survivable than non-cemented versions, although they showed comparable Knee Society scores.
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