Scaphoid Lunate Advanced Collapse (SLAC wrist) is a progressive osteoarthritis caused by instability between the scaphoid and lunate carpal...
Scaphoidectomy and Four Corner Fusion
Evolution of Scaphoidectomy and Four Corner Fusion
The scaphoidectomy and four corner fusion was developed to limit the painful motion between the carpal bones in the hand by removing some of the articulations and replacing them with fused joints. Early techniques involved holding the bones in place with Kirschner wires (K-wires), however compression was difficult to maintain, and so screws fired across the individual joints was trialed, along with compression staples, both with better fusion rates.
The development and implantation of a circular dorsal plate has grown in favor for its ease of use and rigidness to allow for early active range of motion exercises.
Integra® Spider™ and Mini Spider™ Limited Wrist Fusion System is a versitile, concave low-profile circular plate with both eight and six hole options designed for 4 corner and other limited wrist fusion procedures. The central hole of the plate can be ultilzed for additional bone graft placement and better visualization. It comes in two sizes to accomidate both anatomical variable as well as other limited wrist fusion.