{"id":"d24ac7b4-7f91-4888-aeb8-dffc58a5f343","slug":"ergonomics-of-surgical-microscopes-for-the-sitting-position-as-determined-by-ocular-corpus-length","title":"Ergonomics of surgical microscopes for the sitting position as determined by ocular-corpus length","authors":["Felix Goehre","Christopher Ludtka","Stefan Schwan"],"abstract":"Background: The sitting position is favorable for microsurgical procedures applied to posterior midline pathologies in both the supra- and infratentorial regions. The dimensions of the microscope corpus affect the device’s comfort and handling in the hands of the microneurosurgeon for such procedures. A shorter microscope corpus provides more favorable intraoperative ergonomics for surgical practice. Methods: Evaluation of the most comfortable microscope for its application in microsurgical procedures in the sitting position as determined by ocular-corpus length. Results: Six modern surgical microscopes were tested and evaluated regarding their ocular-corpus lengths and working distances: the Mitaka MM90, Zeiss Kinevo 900, Zeiss Pentero 900, Leica M530, Zeiss Neuro NC4, and Möller-Wedel Hi-R 1000. The ocular-corpus lengths vary between 270 and 380 mm. The Mitaka MM90 microscope has the shortest ocular-corpus length at 270 mm. Conclusion: The ocular-corpus length determines the predominant part of the lever arm, which affects the fatigue of the surgeon. By virtue of its short ocular-corpus length, the Mitaka MM90 is currently the most favorable microscope for microsurgical procedures using a sitting position.","thumbnailUrl":"https://sni-digital-videos.s3.amazonaws.com/articles/d24ac7b4-7f91-4888-aeb8-dffc58a5f343/featured/hero-1781563221678.png","publishDate":"2020-08-15T00:00:00.000Z","doi":"10.25259/SNI_292_2020","categories":["General Neurosurgery","Original Article"],"fullTextUrl":"https://surgicalneurologyint.com/wp-content/uploads/2020/08/10213/SNI-11-244.pdf"}