Inter-fascial space between SArtorius muscle and FEmoral artery (ISAFE): A suggested approach for Adductor Canal catheter placement.

• Continuous adductor canal block has been proven superior for total knee arthroplasty analgesia. • Safety concerns such as intravascular injection, nerve injury or catheter displacement must always be considered. • I nter-fascial space between the SA rtorius muscle and FE moral artery (ISAFE) approach is effective and potentially safer. [ABSTRACT FROM AUTHOR]