title: The additive effects of hyaluronidase in subacromial bursa injections administered to patients with peri-articular shoulder disorder.
abstract: OBJECTIVE
  To evaluate the additive effects of hyaluronidase combined with steroids in patients with peri-articular shoulder disorder.
  
  
  METHODS
  Thirty patients with peri-articular shoulder disorder were given subacromial bursa injections once a week for three consecutive weeks. Fifteen patients (Group A) underwent subacromial bursa injections with hyaluronidase 1,500 IU, triamcinolone 40 mg and 0.5% lidocaine (total 6 ml). Another fifteen patients (Group B) underwent the same injections with triamcinolone 40 mg and 0.5% lidocaine (total 6 ml). We examined the active range of motion (AROM) in the shoulder, used a visual analogue scale (VAS) for measurement, and administered a shoulder disability questionnaire (SDQ) at the commencement of the study and then every week until one week after the third injection.
  
  
  RESULTS
  There were no significant difference between group A and B before the injections took place (p>0.05). Statistically significant improvement was seen in the VAS, SDQ, and AROM of flexion, abduction, internal rotation at one week after the first and second injections compared with the parameters measured at previous visits in both groups (p<0.05), except the SDQ between one week after the first and second injections in group B (p>0.05). Improvement in all parameters measured at one week after the third injection compared with the measurement values at one week after the second injection were not statistically significant in both groups (p>0.05). However, group A (the hyaluronidase group) showed significantly greater improvements than group B in terms of their SDQ and AROM of internal rotation scores one week after the three injections had taken place (p<0.05).
  
  
  CONCLUSIONS
  Peri-articular shoulder disorder patients who underwent subacromial bursa injections using hyaluronidase and steroids showed greater functional improvements than those who were given only steroid injections.
authors.affiliation: Department of Rehabilitation Medicine, Dae-gu Fatima Hospital, Daegu 701-600, Korea.
authors.forename: Seung Deuk
authors.initials: SD
authors.lastname: Byun
authors.forename: Dong Hwi
authors.initials: DH
authors.lastname: Park
authors.forename: Yong Ho
authors.initials: YH
authors.lastname: Hong
authors.forename: Zee Ihn
authors.initials: ZI
authors.lastname: Lee