In current research about mechanism of knee osteoarthritis(KOA), study populations have typically been small and involve a range of OA stages, from early OA to severe OA.

• 目前关于膝关节骨性关节炎(KOA)发病机制的研究,研究对象通常样本量较少并且涉及膝关节OA病情分级的各个阶段(由早期表现至重度OA不等)。