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From Meniscus Surgery to Strength: How Dr. Riley J. Williams at HSS Helped Peloton Instructor Jess Sims Get Back to Doing What She Loves

When Peloton instructor, sports reporter, and host Jess Sims steps into a workout, it’s not just about the physical grind — it’s about the mindset. “Now’s the time to train that muscle in your mind,” she says. For Sims, movement is more than exercise; it’s empowerment, connection, and purpose.

But even the strongest athletes face setbacks. In December 2024, Sims underwent surgery for a torn meniscus — a common yet complex knee injury that can challenge even the most disciplined fitness professionals.

“I had surgery for a torn meniscus on December 11th, 2024,” she recalls. “It was a moment of pause, but also a chance to rebuild stronger.”

Understanding the Injury: Meniscus Tear

The meniscus is a C-shaped piece of cartilage in the knee that cushions and stabilizes the joint. Each knee has two menisci, medial and lateral, and when one detaches from the wall of the knee due to a twisting injury, surgical repair may be needed.

According to her surgeon at Hospital for Special Surgery (HSS) — the official hospital of the TCS New York City Marathon — Sims’ procedure involved reattaching the displaced meniscus to its natural position so the body could heal properly.

“The goal,” explains Dr. Williams, “was to restore stability and alignment, allowing her to return to movement safely.”

After Meniscus Repair, The Road to Recovery: Trusting the Process

For Sims, physical therapy became the cornerstone of her recovery. “PT is essential,” her therapist emphasized. “You’re not just teaching the body to move again, you’re teaching the mind to trust movement.”

At first, the rehab seemed simple. Small movements, controlled stretches, and guided exercises. But as strength returned, the real challenge began: trusting her body to perform again.

“I remember when Snay, my therapist, said, ‘You’re ready to run,’” Sims says with a laugh. “I couldn’t believe it. You have to trust the work you’ve put in, the hours of BFR sessions, the band work, the icing. The proof is in the consistency.”

Recovery wasn’t linear. “Sometimes you take three steps forward and six steps back,” she admits. “But HSS and Dr. Williams was there for me through every step, supporting the setbacks and celebrating the wins.”

The Dr. Williams and HSS Difference when it comes to knee surgery:

HSS is globally recognized for its excellence in orthopedic care and sports medicine. Their philosophy is clear: surgery is only one of many paths to healing.

“There’s an overarching philosophy at HSS,” says Dr. Williams. “If you can get better without surgery, we’ll tell you that. Our goal is always what’s best for the patient, whether that’s rehab, rest, or a surgical solution.”

The therapists and physicians at HSS are among the most experienced in the world, specializing in athletic recovery, joint preservation, and personalized physical therapy. Whether you’re a marathon runner or simply dealing with chronic knee pain, there’s an expert ready to help you move forward.

Back to the Start Line

Ten months post-surgery, Sims is back to doing what she loves, teaching, training, and inspiring others.

“That first running class back and that first boot camp hit different,” she says. “It was so empowering because I felt stronger than before. Dr Williams and HSS didn’t just help me recover, they helped me rebuild confidence.”

As the TCS New York City Marathon approaches, Sims has a message for runners everywhere:
“For those of you running your first marathon or your hundredth, enjoy every second. It’s a privilege, not a chore. Be present, be proud, and celebrate what your body can do. The work is already done. Now it’s time to enjoy the moment.”