title: Outcomes of Arthroscopic Decompression of Spinoglenoid Cysts Through a Subacromial Approach.
abstract: OBJECTIVE
  To describe a spinoglenoid cyst decompression technique through a subacromial approach and its clinical outcomes after 2 years of follow-up.
  
  
  METHODS
  From March 2008 to October 2013, 26 patients underwent arthroscopic decompression of a spinoglenoid ganglion cyst with and/or without superior labral anterior to posterior repair, and patients who were available for minimum of 2 years of follow-up were included. For functional assessments, the visual analog scale (VAS) pain score, subjective shoulder value (SSV), University of California at Los Angeles (UCLA) shoulder score, American Shoulder and Elbow Surgeon (ASES) score, and shoulder active range of motion were used to compare preoperative and postoperative follow-up values. Follow-up magnetic resonance arthrography was taken at 6 months postoperatively to evaluate incomplete decompression or recurrence of the cyst.
  
  
  RESULTS
  In total, 21 patients were included in this study. At the 2-year follow-up, the VAS, SSV, ASES, and UCLA shoulder scores significantly improved compared with preoperative values (P < .001): VAS improved from 3.5 to 0.7 (P < .001); SSV improved from 62.9 to 93.1 (P < .001); ASES score improved from 64.3 to 94.4 (P < .001); UCLA shoulder score improved from 21.6 to 32.9 (P < .001). Also, active forward flexion improved from 153° to 158° (P = .014), and external rotation improved from 55° to 57° (P = .042) significantly, with the exception of internal rotation. The follow-up magnetic resonance arthrography was performed in 18 patients (86%), and there was no recurrence of the spinoglenoid notch cyst.
  
  
  CONCLUSIONS
  For spinoglenoid cyst decompression, the subacromial approach was found to be effective, yielding satisfactory clinical outcomes without recurrence.
  
  
  METHODS
  Level IV, therapeutic case series.
authors.affiliation: Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Sung-Jae
authors.initials: SJ
authors.lastname: Kim
authors.affiliation: Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Yun-Rak
authors.initials: YR
authors.lastname: Choi
authors.affiliation: Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Min
authors.initials: M
authors.lastname: Jung
authors.affiliation: Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Jun-Young
authors.initials: JY
authors.lastname: Park
authors.affiliation: Department of Orthopaedic Surgery, Arthroscopy and Joint Research Institute, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea. Electronic address: min1201@hanmail.net.
authors.forename: Yong-Min
authors.initials: YM
authors.lastname: Chun
mesh_terms: D000328:Adult; D001175:Arthrography; D001182:Arthroscopy / Q000379:methods; D019299:Decompression, Surgical / Q000379:methods; D005260:Female; D045888:Ganglion Cysts / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging / Q000601:surgery*; D010147:Pain Measurement; D016059:Range of Motion, Articular; D012785:Shoulder Joint / Q000000981:diagnostic imaging / Q000601:surgery*; D020069:Shoulder Pain / Q000209:etiology; D016896:Treatment Outcome