Abstract: A surgical instrument includes a clamp having a handle with a pair of substantially parallel prongs or tines extending from the handle, all formed as a unitary body or article of manufacture. The handle and prongs define a channel to receive a knife. The knife includes a handle, a scalpel, and an extension arm coupling the scalpel to the handle. The clamp defines a minor image about a central axis. In this way, the surgeon need not concern himself with whether the knife is oriented properly within the channel. Also, the extension arm of the knife includes graduations to assist the surgeon in predetermining precisely the distance of cut in using the instrument. The upper prong of the clamp includes a downwardly extending capture pad having a bottom surface substantially parallel to the inner surface of the lower prong.

Abstract: A subtalar implant comprising a body with a proximal end and a distal end, the body including a cylindrical portion proximate the proximal end, an externally threaded frustoconical portion extending generally from the cylindrical portion toward the distal end, an axially extending bore through the proximal end and the distal end, a driver formation coaxial with the bore and a female threaded portion coaxial with the bore and extending from about the proximal end toward the driver formation, the threads on the externally threaded portion being of an opposite turn to the threads on the male threaded portion.

Abstract: A marked cannula is disclosed that provides for first and second indicia for marking positions along the inner surface of the cannula. The first and second indicia are distinctive with respect to each other and are easily detected or visible using an endoscope. The first and second indicia are preferably provided at positions that are representative of the general population in terms of location of the plantar fascia. The indicia provide a quick visual reference for the positioning of a surgical instrument within the bore of the cannula.