Current Approaches to Tendon and Ligament Regeneration

Ligament and tendon injuries stand as frequently diagnosed conditions, constituting a substantial 50% of musculoskeletal injuries. Tendons serve as the primary conduits for transmitting the muscular contraction force to the bone, enabling the movement, while ligaments function as stabilizers of joints. When a tendon experiences an acute injury, it promptly initiates the healing process, which generally unfolds in three distinct phases: inflammation, proliferation, and remodeling. Authors from Baltimore, Maryland, have compiled a review highlighting therapeutic strategies aimed at enhancing the healing of tendon and ligament injuries. These innovative techniques encompass biophysical stimulation, growth factors, biologics, and the utilization of stem cells.
Biophysical stimulation is typically applied to well-vascularized tissues with a substantial likelihood of spontaneous healing without surgery. This approach often encompasses interventions such as physical therapy, cryotherapy, the application of magnetic fields, and ultrasound. Nevertheless, over the past decade, there has been an increasing interest in incorporating biologically active adjuncts into the realm of sports injury treatment. Platelet-rich plasma (PRP) stands out as the most prominent among these therapies, suggesting an array of diverse growth factors. While concerns linger regarding the absence of high-level clinical evidence, PRP remains a viable conservative treatment option with a commendably low risk of complications.
Authors emphasize the pivotal significance of vascular supply in the healing process. Tendons and ligaments situated in extra-articular locations with an access to a robust blood supply exhibit considerably higher prospects for successful healing, as proved by investigative findings.