Your femur and tibia—the two primary load-bearing bones in your lower extremity—are engineered to articulate smoothly against each other, with cartilage providing the cushioning interface.
However, when your knee lacks mechanical stability, each step generates lateral displacement. The bones cant at incorrect angles. They grind with misaligned contact points.
That bone-on-bone sensation you perceive during movement? That's not osteoarthritis progressing independently. That's your unstable joint structure actively eroding your remaining cartilage tissue.
Now picture performing 50 squats within that unstable framework. Or leg press repetitions. Or resistance band exercises. You're not creating structural support.
You're pulverizing your residual cartilage with each individual repetition. You're reinforcing the misalignment pattern. You're conditioning your musculature to activate in compensatory sequences that compound the underlying problem.
That's the explanation for increased swelling after three months of treatment.
That's why your gait has deteriorated compared to when therapy began.
The medical aids understand this biomechanical reality. Your surgeon understands it.
But the reimbursement protocol mandates you "fail" conservative interventions before they authorize the surgery that generates R180,000+ in billable procedures.
Here's the economic strategy being executed at your knee's expense:
When you attempt—and fail—physio and injections initially, you'll reach such a desperate state by the time surgical approval arrives that you won't scrutinize the financial charges. You'll simply feel relieved that someone is finally "taking action."
But if you achieved stability successfully? You'd never require the operation. The medical aid avoids R180,000+ in expenditure.
So why don't medical aids reimburse mechanical stabilization braces as primary treatment?
Because medical-grade stabilization systems cost R12,000–R19,000. If they provided coverage universally, some recipients would benefit who don't genuinely require surgical intervention. The fund would "squander" resources on that population.
It's more cost-effective to require universal physio failure first, guaranteeing only genuinely desperate patients reach surgical authorization—despite this pathway destroying additional cartilage and rendering your eventual operation more complex, more challenging, and paradoxically more expensive.
This represents medical economics operating independently from medical ethics.