title: Treatment option in a SLAP-related ganglion cyst resulting in suprascapular nerve entrapment.
abstract: BACKGROUND
  Our report shows a rare case of suprascapular nerve palsy due to a SLAP-related ganglion cyst resulting in isolated weakness of the infraspinatus muscle.
  
  
  METHODS
  We report on a 31-year old volleyball player with severe shoulder pain. A ganglion cyst was excised in an open procedure and was completely resolved in a postoperative magnetic resonance imaging (MRI). But the patient again had pain and disability 7 months after this procedure. A renewed MRI scan showed a cystic mass in the spinoglenoid notch. An electromyography revealed an isolated lesion of the suprascapular nerve. The patient was treated by shoulder arthroscopy with refixation of a type-II-SLAP-lesion and drainage of the cyst formation. At latest follow-up 29 months after surgery, the patient's pain and shoulder function improved with a constant score of 94 points. A MRI scan documented complete cyst resolution.
  
  
  CONCLUSIONS
  Treatment options for ganglion cysts at the spinoglenoid notch are various and can be handled in conservative and operative ways. We believe that the arthroscopic concept with the management of a SLAP lesion as the cause of cyst formation, and the drainage of the ganglion is an effective way with low surgical morbidity that shows good postoperative results.
authors.affiliation: Department of Orthopaedic Surgery, Georg-August-University Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany. mike.baums@freenet.de
authors.forename: M H
authors.initials: MH
authors.lastname: Baums
authors.forename: R
authors.initials: R
authors.lastname: Seil
authors.forename: M
authors.initials: M
authors.lastname: Kettler
authors.forename: H
authors.initials: H
authors.lastname: Steckel
authors.forename: W
authors.initials: W
authors.lastname: Schultz
authors.forename: H-M
authors.initials: HM
authors.lastname: Klinger
mesh_terms: D000328:Adult; D001182:Arthroscopy; D001265:Athletic Injuries / Q000150:complications / Q000601:surgery; D045888:Ganglion Cysts / Q000150:complications* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009408:Nerve Compression Syndromes / Q000209:etiology* / Q000601:surgery; D012540:Scapula / Q000294:innervation*; D020069:Shoulder Pain / Q000209:etiology / Q000601:surgery