Kornegay J N
College of Veterinary Medicine, North Carolina State University, Raleigh 27606.
Probl Vet Med. 1991 Sep;3(3):363-77.
Paraparesis (paraplegia) refers to partial (-paresis) or complete (-plegia) loss of voluntary motor function in the pelvic limbs. Similar involvement of all four limbs is termed tetraparesis (tetraplegia). Paraparesis generally results from spinal cord lesions caudad to the second thoracic spinal cord segment, whereas tetraparesis occurs because of lesions craniad to this segment (see discussion of spinal cord lesion localization in The Neurologic Examination and Lesion Localization, on page 328). The limbs may be affected equally; however, asymmetric lesions cause greater clinical involvement on the ipsilateral side. Strictly unilateral lesions at C1-T2 result in clinical involvement on only the affected side of the body (hemiparesis, hemiplegia). Monoparesis (monoplegia) occurs subsequent to unilateral T2-S1 lesions. Trauma and neoplasia are the most common spinal cord diseases affecting cats. Urinary and fecal incontinence often occur concomitant with paresis. General concepts relating to disorders of micturition are discussed at the conclusion of this chapter.
双后肢轻瘫（截瘫）指盆腔肢体随意运动功能部分（轻瘫）或完全（瘫）丧失。四肢均有类似受累称为四肢轻瘫（四肢瘫）。双后肢轻瘫通常由第二胸椎脊髓节段尾侧的脊髓病变引起，而四肢轻瘫则是由于该节段头侧的病变所致（见第328页“神经学检查与病变定位”中脊髓病变定位的讨论）。四肢受累程度可能相同；然而，不对称病变会导致同侧出现更明显的临床症状。C1 - T2节段严格的单侧病变仅导致身体患侧出现临床症状（偏瘫、半身不遂）。单肢轻瘫（单瘫）继发于单侧T2 - S1节段病变。创伤和肿瘤是影响猫的最常见脊髓疾病。尿失禁和大便失禁常与轻瘫同时发生。本章结尾将讨论与排尿障碍相关的一般概念。
