什么叫“这个问题与其他所有慢性疼痛交织在一起”？

The common reason for ineffective treatment of chronic knee pain before or after surgery is poor understanding of the mechanism of pain generation. The problem is intertwined with every other chronic pain condition. It maybe that chronic knee pain is a syndrome and not a disease and therefore has various mechanisms of generation, explaining poor outcome in many patients despite every effort.

无论是术前还是术后，慢性膝关节疼痛治疗无效的常见原因是对疼痛的机制认识不足，这个问题与其他所有慢性疼痛交织在一起。也许慢性膝关节疼痛是一种综合征，而不是一种疾病，因此发生机制多样，这就是为什么尽管竭尽全力，许多患者疗效仍然很差。

什么叫“这个问题与其他所有慢性疼痛交织在一起”？

是不是“其他所有慢性疼痛也存在与慢性膝关节疼痛一样的认识不足问题”？谢谢