Arthroscopically assisted internal fixation of the symptomatic unstable os acromiale with absorbable screws

Ehud Atoun, Alexander van Tongel, Ali Narvani, Ehud Rath, Giuseppe Sforza, Ofer Levy

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


Background: Symptomatic meso- type os acromiale is a common pathology with inconsistent outcomes of treatment with various surgical techniques. We report the outcome of a new technique for arthroscopic fusion of symptomatic os acromiale with absorbable screws. Materials and methods: The study included 8 shoulders in 8 patients with symptomatic meso- type os acromiale who were treated with the use of a new technique for arthroscopic fusion with absorbable screws. The mean age was 54 years (range, 38-67 years), and the mean time from onset of symptoms to surgery was 18 months (range, 9-25 months). No patients reported a specific traumatic event before the onset of symptoms, and all noted the insidious onset of pain with no precipitating event. Results: The average length of follow-up was 22 months (range, 12-36 month). The average Constant score improved from 49 points (range, 35-57 points) to 81 points (range, 75-86 points). The average satisfaction score improved from 4.5 of 10 (range, 2-6) to 8.5 of 10 (range 7-9). All patients made a good clinical recovery at 3 to 6 months after surgery. At the last follow-up, full radiographic union was observed in 6 patients, partial union in 1 patient, and persistent radiologic nonunion in 1 patient. Anterior bulging of the absorbable screws was noted in 2 patients, and the screws were trimmed 6 months after the first procedure. Conclusions: We have found that this new arthroscopic technique of fixation of os acromiale with absorbable screws provides promising clinical, cosmetic, and radiologic results with high patient satisfaction.

Original languageEnglish
Pages (from-to)1740-1745
Number of pages6
JournalJournal of Shoulder and Elbow Surgery
Issue number12
StatePublished - 1 Dec 2012
Externally publishedYes


  • Absorbable screws
  • Arthroscopic
  • Case Series
  • Fusion
  • Level IV
  • Os acromiale
  • Shoulder
  • Treatment Study

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine


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