Abstract: Knee arthroplasty implants, instruments, systems, and methods of implanting the same. The knee arthroplasty implants may include a femoral implant and a tibial tray implant, each with trabecular surfaces configured to contact bone to provide a scaffold for bone healing and interdigitation. The implants may also include fixation pegs with bulleted profiles to increase the surface area for bone ingrowth. An inserter instrument may include a sliding rack, which is incrementally extended with a rotatable shaft, thereby allowing for quick lock and release of various tibia trays.

Abstract: Flammable untreated firefighter training gear is Structural Firefighting Gear (SFG) manufactured without the use of chemical treatments that create resistance to flammability. Stated differently, the gear is SFG that is flammable in the sense that the resulting clothing is as flammable as the uncoated fabric from which the SFG is manufactured. The majority of a firefighter's day is spent preparing for responses to an incident, rather than actual incident response. In other words, the most significant period of time that a firefighter spends wearing their SFG is not during a dangerous incident response scenario, but rather while taking part in the extensive training and preparation to ensure both mental and physical readiness for incidents. As a result, firefighters are often wearing their SFG when its fire and chemical resistance treatments are unnecessary.