Abstract: A retinaculatome and a method of transecting a flexor retinaculum in a carpal tunnel release surgery using the retinaculatome are provided. The method may include inserting a borescope into a sleeve interior cavity of a sterile borescope sleeve of the retinaculatome. The sterile borescope sleeve may include a sleeve exterior shell that is sealed along its length and at a sleeve distal end. The sleeve distal end may have an incision imaging window transparent to the sleeve interior cavity. The method may further include positioning a surgical blade in a mounted blade position defined by a surgical blade mount connected to a lower guide plate extending from the sleeve distal end. The method may further include positioning the retinaculatome within a surgical incision; and transecting the flexor retinaculum by advancing the surgical blade while viewing through the incision imaging window using the borescope.