Knee prostheses: Relationship between service quantity and quality

Extensive surgical experience in the area of unicondylar sled prosthesis of the knee reduces the risk of further interventions. This is the result of an analysis conducted by the Institute for Quality and Efficiency in Health Care (IQWiG, Germany).
However, the only robust study provided data only on revision risk. The relationship between service volume and treatment quality with a view to the physician level and other relevant target variables was not investigated.

It is based on AOK billing data, which only provides results on the influence of the volume of services per hospital on the revision rate within five years after the first intervention and shows: The higher the volume of procedures per hospital, the fewer revisions are necessary.

The data do not allow any deductions to be made about hospital and physician characteristics or relevant outcome measures of morbidity (for example, prosthesis loosening or instability of the knee joint, fractures, pain, or joint infections) or health-related quality of life (mobility and independence).

hil/sb/, 25.03.2022 (german original)
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