均有不同程度的颈椎退行性改变和颈、肩、背部疼痛史。
They all had cervical degenerative change in different degree and neck-shoulder-back pain history.
循环系统：过去无心悸，气急，发绀，浮肿，心前区疼痛史。
Circulating system: no palpitation, out of breath, cyanosis, edema, precordia pain history.
患者通常无外伤史，表现为渐进性疼痛、伴有或不伴有关节肿胀。
Patients present with progressive pain and/or swelling in the absence of trauma.
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