{'fraction_non_alphanumeric': 0.02263374485596708, 'fraction_numerical': 0.006172839506172839, 'mean_word_length': 5.1645569620253164, '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}}
Roentgenographic changes of the hip joint following extra-articular operations for degenerative arthritis.

1. Roentgenographic changes of the hip joint following extra-articular operations for degenerative arthritis have been described. 2. Improvement was noted in the roentgenograms in three fourths of the hips treated by osteotomy or the hanging-hip operation. 3. The mechanism by which beneficial changes are brought about may be common to both types of extra-articular operations.