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In silico study on the effect of the patellar component designs and positionings. Mediolateral positioning of patellar component ±3 mm, superior–inferior positioning of patellar component ±3 mm, and patellar button design parameter by increasing/decreasing the thickness of the patellar component ±2 mm. The rotational positioning was analyzed by the spin of the patellar component ±5°, tilt of the patellar component ±5°, and flexion-extension of patellar component ±5°.
