Wittke R
MMW Fortschr Med. 2005 Jun 23;147(25):28-9, 31-2.
Chronic pain in the knee joint is frequently a sign of arthrosis in adults. This must be clearly differentiated from other knee problems. Patellofemoral stress syndrome (occurs mostly in young people) and arthritis with effusion in the knee joint after long and mostly unusual stress also allow only a reduced function of the knee joint. However, even when the knee joint is still fully functional, chronic problems could already exist: For example, for joggers, iliotibial band friction syndrome (runner's knee) or after high unphysiological stress, patellar tendinopathy (jumper's knee). These must be differentiated from pes anserinus syndrome and a plica mediopatellaris.
膝关节慢性疼痛在成年人中常常是骨关节炎的迹象。这必须与其他膝关节问题明确区分开来。髌股关节应力综合征（多见于年轻人）以及在长时间且大多为异常应力后出现膝关节积液的关节炎，也只会导致膝关节功能减退。然而，即使膝关节仍具有完全功能，慢性问题可能已然存在：例如，对于慢跑者来说，髂胫束摩擦综合征（跑步者膝），或者在承受高度非生理性应力后，髌腱病（跳跃者膝）。这些必须与鹅足综合征和髌中襞相鉴别。
