The Clinical Characteristics of Nocturnal Pain Accompanying Shoulder Periarthritis

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  • 夜間痛を合併した肩関節周囲炎の臨床的特徴

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<p>Purpose: To evaluate the clinical characteristics of nocturnal pain accompanying shoulder periarthritis, the positional relationships of scapulohumeral joint and shoulder joint movements were compared among a non-nocturnal pain group, a nocturnal inflammation group, and a nocturnal contracture group.</p><p>Patients: The subjects were 100 patients (100 shoulders) with shoulder periarthritis. Based on frontal shoulder joint X-ray films of the subjects, the AHI, HHD, AHI/HHD ratio, and GHA were measured. To assess the range of shoulder join movement, flexion, lateral rotation, and internal rotation were measured and compared.</p><p>Results: No significant differences of AHI, HHD, and shoulder joint flexion were observed between the three groups. Compared to non-nocturnal pain group, the nocturnal contracture group showed a reduced range of lateral and internal rotation, while GHA was increased. Compared to the non-nocturnal pain group, the nocturnal inflammation group showed a decrease of AHI/HHD, while GHA was increased. The nocturnal contracture group showed an increase of GHA compared to the nocturnal inflammation group.</p><p>Conclusion: In the nocturnal inflammation and nocturnal contracture groups, the scapula was in a position of downward rotation. When nocturnal pain was due to inflammation, the range of shoulder joint rotation was relatively well maintained. However, the range of shoulder joint rotation was restricted when contracture was responsible for pain.</p>

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