Recovering from ACL reconstruction or meniscal surgery is rarely a straight line. While many patients progress steadily through rehabilitation, others hit frustrating plateaus — weeks of persistent swelling, pain that limits movement, and a knee that simply won't settle down. In these situations, hyaluronic acid (HA) / Durolane injections have been investigated as a potential adjunct to help get recovery back on track. But the evidence is genuinely mixed, and understanding wh