[Advances in research of cervical spondylotic amyotrophy].

Cervical spondylotic amyotrophy (CSA) has attracted more and more attention in recent years, according to early studies, it is based on cervical degeneration, and mainly characterized by segmental, asymmetric and stable muscular atrophy of upper extremities, with or without mild sensory abnormalities and spinal cord lesions (manifested as lower extremity symptoms and gait abnormalities), also known as Keegan's cervical spondylosis. This review will focusing on recent research progress of CSA, and summarize and analyze the definition, pathogenesis, clinical manifestations, diagnosis and treatment of cervical spondylosis muscular atrophy.颈椎病性肌萎缩（CSA）近年来日益受到关注。CSA的发生以颈椎退变为基础，主要表现为节段性、非对称性、稳定性上肢肌肉萎缩，伴或不伴轻度感觉异常及脊髓病变（表现为下肢症状及步态异常），也称为Keegan型颈椎病。本文对CSA的定义、发生机制、临床表现、诊断及治疗等研究进展进行了综述。.