Efficacy of ultrasound guided drug injection into shoulder joint cavity and pain point in the treatment of patients with obstinate scapulohumeral periarthritis

Abstract

Objective To investigate the efficacy of ultrasound guided drug injection into shoulder joint cavity and pain point in the treatment of patients with obstinate scapulohumeral periarthritis. Methods Thirty-eight patients with obstinate scapulohumeral periarthritis were received the treatment of drug injection into shoulder joint cavity and pain point under ultrasound guidance. All patients were followed up for 1 year, and the curative effect was observed. Results The range of antexion, abduction and extorsion of the shoulder joint movement (145°±11°, 92°±10°, 49°±17°) at one month after the treatment was wider than that (85°±13°, 45°±9°, 9°±4°) before the treatment, and VAS was lower (6.9±1.4 vs 2.6±1.2) , with significant difference (P<0.05) . 11 cases showed calcification in shoulder joint cavity by ultrasound and 7 cases hydrarthrosis before the treatment, in which 5 cases calcification disappeared, 5 cases shrank, 1 case unchanged; and 3 cases hydrarthrosis disappeared, 3 cases decreased and 1 case unchanged at one year after the treatment. 12 cases were excellent effect at one year after the treatment, 9 cases good effect, 4 cases effective, 3 cases bad effect. The total effective rate was 92.1%. Conclusion Ultrasound guided drug injection into shoulder joint cavity and pain point is an effective method in the treatment of obstinate scapulohumeral periarthritis. Key words: Ultrasonography; Injections, intra-articular; Shoulder joint; Pain point injection; Frozen shoulder