Why Hormones Matter in Orthopedic Care

Oceanus Health
3 hours ago
4 min read

When most people think about orthopedics, they think about bones and joints. A painful knee. A torn rotator cuff. Arthritis. A fracture. A tendon that just won’t seem to heal. And traditionally, orthopedic medicine has focused heavily on the structure that’s injured: What does the X-ray show? What does the MRI show? Does this need physical therapy, an injection, regenerative treatment, or surgery?

Those questions matter. But at Oceanus Health, we believe there’s another question worth asking: What kind of body are we asking to heal this injury? Because the shoulder, knee, tendon, or bone we’re treating doesn’t exist in isolation. It’s part of an interconnected biological system—and hormones are one important part of that system.

Your Hormones Are Part of Your Musculoskeletal System

We tend to think about hormones in terms of reproductive health: hot flashes, menstrual cycles, libido, menopause, or low testosterone. But hormone receptors exist throughout the body, including in muscle and bone, and hormonal changes can have meaningful effects on body composition, strength, skeletal health, and tissue function.

Estrogen, testosterone, thyroid hormones, insulin, cortisol, and other signaling molecules all participate—directly or indirectly—in the environment in which musculoskeletal tissue is maintained and repaired.

That’s why a change in hormones doesn’t necessarily show up as a classic “hormone symptom.” Sometimes it looks like losing muscle. Sometimes it’s declining bone density. Sometimes recovery from exercise suddenly takes longer. Sometimes it’s an injury that isn’t progressing the way we would expect. And sometimes it’s simply the feeling that your body doesn’t work the way it used to.

Muscle Is Your Body’s Natural Orthopedic Support System

Muscle isn’t just about appearance. Strong muscle helps stabilize joints, absorb forces, maintain balance, protect against falls, and allow us to continue doing the things we want to do as we age.

Testosterone plays an important role in maintaining muscle mass and strength in both sexes.

Research has demonstrated the relationship particularly clearly in men. In a controlled study published in the New England Journal of Medicine, experimentally induced androgen deficiency resulted in decreases in lean mass, thigh-muscle area, and strength as testosterone declined.

In other words, testosterone isn’t simply a “sex hormone.” It’s also a musculoskeletal hormone.

This becomes particularly important as we think about aging. If we’re treating a painful knee but ignoring progressive loss of the muscle supporting that knee, we’re only looking at part of the picture.

Estrogen Matters to Bones—and Potentially Much More

The relationship between estrogen and bone is well established. As estrogen declines after menopause, bone resorption increases and the risk of osteoporosis and fracture rises. Estrogen also affects osteocytes—the cells that help coordinate how bone responds and adapts to mechanical forces. But researchers are increasingly interested in estrogen’s relationship with other musculoskeletal tissues and conditions as well.

One fascinating example is adhesive capsulitis, or frozen shoulder, which disproportionately affects women between approximately 40 and 60 years old. A 2026 Duke University pilot study examined nearly 2,000 menopausal women and found frozen shoulder in 7.65% of women not using hormone therapy compared with 3.95% of women using hormone therapy.

Importantly, the difference did not reach statistical significance, and the researchers specifically called for larger prospective studies. So this does not prove that estrogen prevents frozen shoulder. But it illustrates an important direction in orthopedic research: the hormonal environment may be relevant to conditions we’ve historically thought of as purely orthopedic.

Don’t Forget the Thyroid

Thyroid hormones are another part of this conversation. They are essential for normal skeletal development and adult bone metabolism, and thyroid dysfunction can significantly alter bone turnover. This is one reason we believe a thoughtful orthopedic evaluation sometimes needs to extend beyond the joint itself.

A patient may come to us because their body hurts, they’re losing strength, or their recovery has changed. Depending on their history and symptoms, understanding thyroid function, vitamin D status, metabolic health, inflammation, and hormone status may provide information an MRI simply cannot.

An MRI Shows Us Structure. It Doesn’t Show Us the Healing Environment.

Modern orthopedic imaging is incredible. We can see cartilage loss. Tendon tears. Bone edema. Arthritis. Ligament injuries. But an MRI can’t tell us whether you’re losing muscle. It can’t tell us whether your bone metabolism has changed. It can’t tell us whether you’re sleeping poorly, metabolically unhealthy, vitamin D deficient, or experiencing significant hormonal changes. And those things don’t make the structural injury disappear. They give us context for the person who has the injury. That’s an important distinction.

Hormone optimization isn’t a replacement for appropriate orthopedic treatment. A torn tendon is still a torn tendon. A displaced fracture still needs appropriate fracture care. Severe arthritis doesn’t disappear because someone’s testosterone or estrogen improves. Instead, we’re asking whether we can create a healthier physiological environment around the orthopedic care we’re already providing.

Treat the Structure. Support the System.

That’s ultimately the philosophy behind combining orthopedics, regenerative medicine, metabolic health, and hormone optimization at Oceanus. If we’re trying to preserve someone’s mobility for the next 20, 30, or 40 years, we have to think beyond what hurts today.

We want strong muscles supporting the joints. We want healthy bones underneath them. We want patients capable of participating in rehabilitation and maintaining strength. And when surgery or an injury requires healing, we want to understand whether there are modifiable factors that could be working against recovery.

The goal isn’t to blame every orthopedic problem on hormones. It’s to stop pretending the musculoskeletal system exists separately from the rest of the body. Because it doesn’t.

At Oceanus Health, we treat the structure—but we also pay attention to the system surrounding it.

Because the goal isn’t more treatments. It’s better outcomes.

Here’s to treating the whole person—and helping you stay active for the moments that matter most.

— Betsey & Rocco