Middle Grade 6 Science Bone Saw Demonstration

Grade 6 St. Michaels University School students recently had a hands-on opportunity to explore the human body in action—or more accurately, in repair. As part of their Body Systems unit, students reviewed major systems they studied last year, including the musculoskeletal system. This laid the groundwork for a deeper investigation into how the body’s systems work together to enable movement, and what happens when something goes wrong.

This unique opportunity was made possible thanks to the incredible team at RebalanceMD, who performed a total knee replacement on me this past fall. Their passion for education and eagerness to share their work led to a special visit from Darren Stanger, a representative from Stryker, a global leader in joint replacement technology.

Darren guided students through an entire knee replacement procedure from start to finish. Using an artificial leg, saw bones, real surgical tools and a cobalt titanium implant, he demonstrated how damaged joints are repaired and replaced to restore mobility. He also helped students understand the technology behind joint implants, which was especially meaningful as our class received a donated knee implant from Dr. Camus—the surgeon who performed my procedure.

In addition to explaining each step of the surgery, Darren brought in many of the same instruments used in operating rooms. Students got a close-up look at what happens in the OR—from surgical prep to implant placement—and saw the precision tools surgeons rely on. Even we teachers had a chance to try some of them out. Interacting with the equipment that plays such a critical role in these life-changing procedures was a rare and exciting opportunity. Students deepened their understanding of human anatomy, how joints function, and the scientific innovations that make modern medicine possible.

But it wasn’t just the technical aspects that captured students’ attention. When asked about their key takeaways, several students said things like, “I want to be a surgeon one day.” Others reflected on what they learned, sharing thoughts such as, “It was so cool to see what actually happens inside the operating room and how all the parts of the body fit together,” and “I couldn’t believe how many people it takes to do one surgery—and that you can replace a knee in less time than a single math class.”

We’re incredibly grateful to Darren, Stryker, Dr. Camus and the team at RebalanceMD for making this experience possible. It was a powerful example of how real-world connections can enrich classroom learning—and maybe even inspire future careers.