理解的对吗？

A 75-year-old male is referred to the pain clinic for chronic right knee pain. Pain is localized to the knee, worse in the morning, gets a little better with walking. He complains of intermittent swelling but no discoloration. No history of direct trauma or fall. He was quite athletic when in high school and college and remembers having few knee sprains but that never bothered him after college. He is an avid jogger but has been cutting down on his run quite a bit due to pain and stiffness. He has history of hypertension, which is well controlled. He is managing his pain with over-the-counter medications. He is referred to the pain clinic for an injection therapy as the medications are not helping enough.

男性，75岁,因慢性右膝疼痛转诊至疼痛门诊。疼痛局限于膝盖，早晨加重，行走时稍好转。诉有间歇性肿胀，但无变色。无直接创伤或跌倒史。他在高中和大学时爱运动，记得当时几乎未有过膝盖扭伤，但大学毕业后，肯定没有。他是一个狂热的慢跑者，但由于疼痛和僵硬，已明显减少了跑步量。既往高血压病史，目前控制良好。他用非处方药物来缓解疼痛，由于疗效不佳，建议他到疼痛门诊注射治疗。