Study design: Evaluation of the surgical effects of patients with intramedullary spinal cord cavernous angiomas (CAs). Objectives: To assess the sensory and motor deficits in the clinical symptoms of patients with intramedullary CAs after complete surgical resection. Setting: Seoul National University Hospital, Korea. Results: The patients' mean ASIA score at follow-up was increased in comparison to the preoperative score (97.2±5.3 vs 95.2±7.6, P ¼ 0.201), but this difference was not significant. The mean JOA motor score at follow-up was slightly increased in comparison to the preoperative score (7.2±1.3 vs 6.8±1.3, P ¼ 0.107). There was a significant difference between the patients' preoperative and follow-up JOA sensory score (4.3 ± 1.0 vs 4.9 ± 0.9, P ¼ 0.007). The rates of complete resolution of motor and sensory deficits were 45.5% (5/11 patients) and 7.1% (1/14 patients), respectively. Conclusion: Although complete surgical resection could improve the clinical symptoms of intramedullary CAs, the sensory deficits usually remain in the long-term period after complete resection.