Back pain, neck strain, and joint problems already rank among the top two cost drivers in employer health plans. According to peer-reviewed research, musculoskeletal (MSK) conditions account for more than $300 billion in U.S. medical spending, more than any other chronic condition. So most benefits leaders already know MSK is expensive. What fewer realize is that the cost isn't really about how hurt someone is. It's about how they think and feel about being hurt.
Why pain severity doesn't predict who misses work
Here's the finding that should reshape how you think about MSK: how badly an injury hurts barely predicts how much work an employee will miss. What predicts it is the psychology around the pain. According to a 2025 study of chronic low-back-pain patients, catastrophic thinking was the single coping factor most tied to disability, while pain intensity itself correlated only weakly.
That same study found that catastrophizing, fear of movement, and a few other factors together explained about 35% of the variation in disability. Pain level alone explained far less. Two people can have the identical scan and the identical diagnosis. One is back at their desk in a week. The other is out for three months. The difference usually isn't the spine. It's the story each person tells themselves about the pain.
Researchers call this the biopsychosocial model, but you don't need the jargon. The plain version: when someone believes movement will reinjure them, they stop moving. When they stop moving, they get stiffer and weaker, which confirms their fear. When they catastrophize ("this will never get better, I'll lose my job"), stress amplifies the pain signal. The loop feeds itself, and the employee stays out.
Fear-avoidance is the direct line to absenteeism
If you want to reduce employee absenteeism tied to MSK, fear-avoidance beliefs are where to look. Fear-avoidance is exactly what it sounds like: avoiding activity because you're afraid it'll cause harm. And it shows up directly in sick-leave data.
In a study of 559 patients, those who scored high on work-related fear-avoidance at the start were significantly more likely to still be on sick leave a full year later. A separate occupational-insurer analysis tied fear of movement, fear-avoidance, and catastrophizing directly to how long people stayed off work. The pattern is consistent across the research: the belief, not the bulge in the disc, keeps people home.
This reframes absenteeism entirely. A long-term sick-leave case often isn't a medical problem that hasn't healed. It's a behavioral and cognitive pattern that nobody has addressed, because the whole care pathway was pointed at tissue.
The cost multiplier no one's pricing in: mental health
Here's where the clinical story becomes a CFO story. MSK pain and mental health travel together, and when they do, costs roughly double.
According to a 2025 claims analysis from Evernorth, about 35% of MSK "wear and tear" patients also have behavioral-health claims, and their average spend runs 66% higher than MSK patients without them. A separate longitudinal study found that comorbid depression plus MSK pain costs roughly $13,000 per person annually, nearly double the roughly $7,000 for chronic pain alone.
The two conditions feed each other. Pain wrecks your mood and your sleep. Low mood and poor sleep make pain harder to manage and recovery slower. Carriers including Cigna and UnitedHealthcare now openly treat MSK and mental health as inseparable. If your MSK vendor handles joints and your EAP handles mood, the most expensive employees are the ones falling through the gap between them.
This is a behavior-change problem, and the evidence says so
Once you accept that the drivers of MSK absenteeism are psychological, the solution follows: you have to change beliefs and behaviors, not just stretch tissue. The most studied tool for that is cognitive behavioral therapy (CBT), and we want to be straight about what it does and doesn't do.
CBT won't "cure" pain and it doesn't beat surgery, despite some of the headlines you'll see from vendors. What it reliably does, according to a 2022 meta-analysis of 22 randomized trials, is improve disability, reduce fear-avoidance, and build pain self-efficacy, with the strongest effects on exactly those psychological drivers. An overview of ten systematic reviews reached a similar conclusion: CBT outperforms usual care for pain and disability, though it's roughly comparable to other active treatments.
We'd rather tell you the effect is real and modest than oversell it, because the overselling is the problem. The field is full of inflated claims, and the honest version is more useful: CBT is the most effective lever on the mental patterns that turn a manageable injury into a costly, months-long absence. That's not a small thing. It's the half of MSK spend nobody is addressing.
What this means for your MSK strategy
Most digital MSK solutions on the market lead with sensors and virtual physical therapy, then bolt "behavioral coaching" on as a feature to improve exercise adherence. That's fine for the movement half. It leaves the psychology half mostly untouched.
A complete MSK strategy treats the behavioral layer as a primary lever, not an afterthought:
Avidon's approach is built on this behavioral foundation: 25+ years of cognitive behavioral training, not generic wellness content. It's designed to complete a movement or PT strategy by addressing the psychological drivers those strategies don't reach, not to compete with them. And because it's a turnkey platform, you can add it to your existing MSK benefit in days, not quarters, at a fraction of what it costs to stand up a new point solution. With 40+ courses, coaching, and challenges, every employee gets a way in, whether they're avoiding movement, struggling with mood, or just trying to stay ahead of a flare-up.
