Tennessee Patent of the Month – November 2022

Osteotomy surgeries involve cutting bone, and sometimes adding bone tissue, to reshape or realign bones and can be performed on bones all over the body. These surgeries are often recommended when a patient has experienced a condition that affected their skeletal joints. Various conditions might lead to the deterioration, elongation, shortening, or rupture of soft tissues, cartilage and even bone. The surgery offers a chance at changing the angular alignment of a bone which can restore function or reduce pain. 

CrossRoads Extremity Systems, LLC has developed a freeform tri-planar osteotomy guide meant to increase the outcome of a procedure performed on the metatarsocuneiform joint of a human foot. The osteotomy guide is an auxiliary tool which improves the accuracy of this bone resection. This region of the foot is approximately in the middle, where the joint is not plainly visible like a knuckle would be. The joint defines the connection between a metatarsus and a cuneiform.

These procedures are meant to improve the alignment of the joint, typically by inserting an implant or alignment piece around the joint. The guide is designed with a series of guide features that help the surgeon identify the optimal spot to cut, remove, and re-align. For instance, the first guide feature helps to align the cutter with the appropriate spot on the metatarsus. A second guide feature positions the cutter along the cuneiform where the second cut should be made. These two cuts create a gap between the two bones. The guide itself is adjustable so that the surgeon can adapt the guide to the individual patient.

CrossRoads Extremity Systems, a biotechnology company based in Tennessee, was founded with the mission of supporting surgeons by developing medical devices that ease the procedure and improve patient outcomes. They have continued on this path as they design and engineer foot and ankle implant systems with advanced technology and materials. Their solutions help to shorten recovery times and improve surgical outcomes.

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