The following case is a medical case of STT osteoarthritis and subsequently STT pseudarthrosis. The 69-year-old patient suffered from severe pain in the area of the STT carpal bones prior to surgery. Despite two attempts to perform STT arthrodesis with metal implants, pseudarthrosis developed between the carpal bones. After removal of the metal implants, STT arthrodesis with two human bone screw grafts was performed, resulting in healing of the pseudarthrosis. The patient is symptom-free and suffers from no limitations.
Preoperatively
X-Ray shows major STT Arthritis
Postoperatively – first procedure
Three months after procedure, using three k-wires, the pseudoarthrosis is clearly visible on X-ray
Postoperatively – second procedure
Despite revision with metal screw, pseudarthrosis does not heal
3 weeks postoperatively
third procedure using Shark Screw / Allograft screws can be seen clearly on X-ray
6 weeks postoperatively - third procedure using Shark Screw
X-ray image after removal of the cast. Fusion of pseudoarthrosis gap is already visible
1 year postoperatively - third procedure using Shark Screw
Shark Screw is completely remodeled into autologous bone
Clinical case of Dr. Klaus Pastl, Linz in Austria. Arthrodesis of STT carpal bones with two human bone screw grafts after STT pseudarthrosis with metal implants. (documentation period 2009-2012) © surgebright GmbH