Cell-Based Therapies for Post-Traumatic Ankle Osteoarthritis and Osteochondral Lesions of the Talus: A Systematic Scoping Review of an Emerging and Heterogeneous Evidence Base.

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Background : Ankle osteoarthritis (OA) differs fundamentally from knee OA: it is predominantly post-traumatic, affects younger and more active patients, and frequently arises from focal osteochondral lesions of the talus (OCLT) rather than diffuse degeneration. Cell-based and orthobiologic therapies-bone marrow aspirate concentrate (BMAC), bone marrow-derived cell transplantation (BMDC), adipose-derived mesenchymal stromal cells (ADMSCs), stromal vascular fraction (SVF), micro-fragmented adipose tissue (mFAT), and peripheral blood-derived products-have been proposed as joint-preserving options, but the evidence base has not been mapped in a way that separates degenerative post-traumatic ankle OA from focal chondral repair, or that distinguishes cells given as a standalone injection from cells given alongside a therapeutic operation. Methods : We conducted a systematic scoping review following the PRISMA-ScR framework. Human clinical studies applying cell-based therapies to post-traumatic ankle OA and/or OCLT were charted by population, cell source and preparation, mode of delivery, concomitant procedures, follow-up, and reported clinical and structural outcomes. Mode of delivery-standalone intra-articular injection versus adjunct to a concomitant surgical procedure-was pre-specified as a primary analytic axis, because it determines whether an observed effect can be attributed t

Evidence level

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

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