Tendon Structure and Treatment

Tendons are dense connective tissues that transmit force from muscle to bone, and their function depends on a highly organized extracellular matrix of collagen fibers that responds—and sometimes maladapts—to mechanical loading over time. When that matrix degrades or repairs improperly, the result is tendinopathy, a spectrum of painful and often persistent conditions that affect athletes and non-athletes alike, particularly at sites where tendon meets bone, known as entheses. Researchers are working to understand how biological signals from stem cells and growth factors coordinate tendon healing, and whether interventions like platelet-rich plasma—which concentrates those signals from a patient's own blood—can reliably accelerate repair rather than simply adding noise to an already complex process. A central open question is why some tendons recover well under rehabilitative loading while others progress to chronic degeneration, a gap that sits at the intersection of biomechanics, cell biology, and clinical practice.

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Keywords

TendonExtracellular MatrixMechanical LoadingStem CellsGrowth FactorsTendinopathy