Distal Femoral Osteotomy
Once the incision is established and the soft tissue is safely elevated, the Arthrex Osteotomy Cutting Guide and two 2.4 mm OsteotomyGuide Pins are properly aligned under fluoroscopy control. Specifically design retractors are then used to clear any soft tissue and the osteotomy is precisely performed preserving approximately 1 cm of the medial cortex. The desired amount of angular correction is achieved utilizing the Osteotome Jackor Osteotomy Wedge and the osteotomy site is packed with allograft or autograft bone void filler.
OSferion Bone Void Filling
OSferion is an osteoconductive bone graft substitute and bone void filler consisting of 100% beta-tricalcium phosphate (β-TCP). OSferion’s micro- and macroporous structure allows it to be resorbed and replaced by bone during the healing process. OSferion wedges are intended to be used in conjunction with the distal femoral and high tibial opening wedge osteotomy plates and screws to promote healing and provide added rigidity to the repair. The chamfered wedge design of the OSferion implants corresponds to the shape of the osteotomy and can be easily trimmed to size using a rongeur.
Distal Femoral Fracture Management
In situations where the lateral cortex or anteromedial cortex has been inadvertently fractured, the Two-Hole Osteotomy Support Plate Implant System can be utilized to help fixate these fractures. After proper soft tissue exposure and identification of the fracture it is recommended to close the prepared osteotomy before application of the plate. Apply the anatomically contoured two hole plate over the fracture site and secure it with two 4 mm x 30 mm titanium self-tapping cancellous screws. After successful application of the plate and screws re-open the osteotomy allowing compression at the fracture site.