Accuracy and dispersal of subacromial and glenohumeral injections in cadavers

J Rheumatol. 2006 Jun;33(6):1143-6.


Objective: "Blind" shoulder injections are often inaccurate and infiltrate untargeted structures. We tested a hypothesis that optimizing certain anatomical and positional factors would improve accuracy and reduce dispersal.

Methods: We evaluated one subacromial and one glenohumeral injection technique on cadavers.

Results: Mean accuracy was 91% for subacromial-targeted and 74 and 91% (worst- and best-case scenarios) for joint-targeted injections. Mean dispersal was 19% for subacromial-targeted and 16% for joint-targeted injections. All results bettered those reported previously.

Conclusion: These "optimized" techniques might improve accuracy and limit dispersal of blind shoulder injections in clinical situations, benefiting efficacy and safety. However, evaluation is required in a clinical setting.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acromioclavicular Joint / anatomy & histology
  • Aged
  • Aged, 80 and over
  • Arthrography
  • Coloring Agents / administration & dosage
  • Humans
  • Humerus / anatomy & histology
  • Injections, Intra-Articular / methods*
  • Male
  • Reproducibility of Results*
  • Shoulder Joint* / anatomy & histology


  • Coloring Agents