
Tendinitis and Tendinosis: Why the Difference between them Matters. Many patients at our specialized physical therapy practice in Portsmouth, NH, suffer from either Tendinitis or Tendinosis. Tendinitis and Tendinosis sound very similar, and are often used interchangeably but they couldn’t be more different. And neither should their treatment regimen. Tendonitis is an acute, short-term, inflammatory condition typically caused by repetitive overuse of your tendon. Tendinosis, on the other hand,...

