Table 3.

Cases in which additional axillary/Velpeau views contributed to clinical decision making, accounting for 6 (40%) of 15 patients diagnosed with shoulder instability.

Case	View Type	Initial Diagnosis	Post-Axillary and/or Velpeau Views Diagnosis	Effect of Axillary and/or Velpeau View on Clinical Decision Making
1	Velpeau	Prosthetic hemi-arthroplasty in anatomical alignment (no pathology)	Anterior dislocation of prosthetic humeral head	The dislocation was recognized by the orthopaedic surgeon in the initial radiograph series, but the radiologist required an additional Velpeau view to visualize the pathology. This resulted in a glenohumeral reduction procedure.
2	Velpeau	Inferior subluxation	Posterior dislocation	The correct diagnosis of posterior dislocation was made with the Velpeau view, resulting in a glenohumeral reduction procedure.
3	Both (Axillary and Velpeau)	Anterior dislocation of prosthetic humeral head	No dislocation	The lack of pathology was recognized by the orthopaedic surgeon in the initial radiograph series, but the radiologist required additional axillary and Velpeau views to confirm this.
4	Axillary	Anterior subluxation (equivocal)	Anterior subluxation (confirmed)	The axillary view was useful in confirming the diagnosis, thereby resulting in a glenohumeral reduction procedure.
5	Axillary	Anterior dislocation or subluxation	No dislocation	The lack of pathology was recognized by the orthopaedic surgeon in the initial radiograph series, but the radiologist required an additional axillary view to confirm this.
6	Both (Axillary and Velpeau)	Posterior subluxation (equivocal)	Posterior subluxation (confirmed)	The axillary and Velpeau views were useful in confirming the diagnosis, thereby resulting in a glenohumeral reduction procedure.