{'fraction_non_alphanumeric': 0.03033980582524272, 'fraction_numerical': 0.014563106796116505, 'mean_word_length': 5.021897810218978, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Non-bony lumbar stenosis treated by excision of limited lamina and enlargement of spinal canal: a report of 45 cases].

In the treatment of 45 cases with non-bony lumbar stenosis, we adopted remain of spinal process and supraspinal ligament, excision of limited lamina and ligament flavum, enlargement of spinal canal. Follow-up of 40 cases showed 31 were excellent, 7, good and 2 poor. Satisfactory results were obtained in 95% of the cases: non-bony lumbar stenosis considered a type of acquired lumbar stenosis. Clinically, it was characterized by claudication. Diagnosis of the disease mainly depends on dynamic flexion-extension myelography. The advantages of this method include excision of spinal canal soft tissue which compressed nerve, small damage of bone structure, recover of the patients and lumbar stability.