Arthrozheal®, a Bioactive Fibrin Scaffold for Joint Cartilage, Tendon and Soft Tissue Lesions. Latest Results and Application Perspectives.

Abstract

Treatment of articular cartilage, tendon and soft tissue damage remains a challenge for the practicing orthopaedic surgeon. Due to the multifactorial aetiology of these lesions, there is a narrow therapeutic window within which they can be treated successfully, thus preventing progression to other musculoskeletal tissues. Recently, a new material that combines platelet-rich fibrin with collagen and is applied as a gel scaffold (ArthroZheal®, Vivostat A/S, Allerød, Denmark) has been shown to provide unique results in these patients. We arthroscopically treated 210 patients (114 knees, 32 hips, 52 shoulders, 12 ankle joints) with ArthroZheal®. The basic idea was to adjust treatment to the individual patient and to repair related and/or contributing problems before or along with treatment of chondral/tendon/ligament injuries. Arthroscopy was our preferred surgical method; the goal was to restore and preserve function, alleviate pain and minimise progression to osteoarthritis. We excluded cases of inflammatory arthropathy, unstable or malaligned joint, "kissing lesions" (bipolar), infection, obesity, massive rotator cuff rupture and multiligament instability. Our results were more than promising. We observed improved mobility in 93%, reduced pain in 95% at 3 months and further improvement at 6 months, with near-normal ROM (97% ) and pain-free status (98%). The MRI at 12 months post application showed cartilage restoration/reformation in 94% of patients, improved cartilage quality (84% )-by 2nd-look arthroscopic confirmationand normal tendon or ligament reconstruction (without stitching of the affected area)(95%). We were concerned about bone marrow oedema and rehab compliance among elderly patients. For successful regeneration of tissue lesions and osteochondral defects, natural gel bioscaffolds, combined with platelet rich fibrin (PRF) with chondroinductive and osteoinductive growth factor stimulators (ArthroZheal®) are required. There is no "gold standard" in the treatment of cartilage defect/tissue lesions or preferred treatment option. Many algorithms are used, which mostly rely on the surface area of the defect/site of lesion and on surgeon experience. An important issue is that rehabilitation depends on the treatment mode used and on the defect/lesion characteristics (classification and qualification). While a return to functional work and sports is possible with all procedures, different lengths of time are needed.