compression screw (Herbert)
Compression screw (Herbert screw) is used to compress bone fragments and osteosynthesis of bone fragments, mostly in fractures within the bones of the hand and wrist (scaphoid and other wrist bones, basis metacarpalis, distal phalanxes).
SURGICAL TECHNIQUEUsed surgical technique depends on the type of fracture, place of its occurrence and the size of the compression screw chosen. The decision to use osteosynthesis with compression screws should be confirmed by taking an X-Ray of the fracture surrounding area. Treatment planning should take into account the selection of a suitable surgical approach that would ensure safe implantation.IV.1. SURGICAL APPROACHThe compression treatment of the scaphoid bone fragments is usually performed using volar approach, via short simple incision over the radiocarpal joint space from the flexor carpi radialis tendon, going forward in the shape of a hook to the ulnar side and ending near the glomus. Medial surgical approach through an incision in the anatomical snuffbox is an alternative approach. Access to the first and second metacarpal bone is possible via volar approach. Other metacarpal bones can also be reached from the dorsal side.Phalanxes can be reached via medial-axial and the medial-lateral approach.