Updated 7/3/26. Greatly expanded from Patronek, Studies Pertaining to Onychectomy, 2001. There were only 20 studies in the original table. There are more than 100 studies today. Click here to download the current PDF Below is an older version of this chart. If anyone knows how to get WordPress to properly upload a large Excel file, let me know! Additional studies not cited in the original noted in color; additions and comments by Jean Hofve, DVM Study No. Cats Time Relevant Outcomes Description of Study, Sample and Major Findings   ...