*3.3. Scapular Notching*

Scapular notching was present in 13 (27%) patients: 6 cases were grade 1 and 7 cases were grade 2. No cases of grades 3 and 4 were observed. All cases presented a bone spur formation at the scapular neck. Notching was significantly associated with high baseplate position (12/12 cases of notching in case of high baseplate vs. 1/36 in case of low position; *p* < 0.001). Patients with and without notching did not show a significant difference in baseplate inclination (14◦ ± 9◦ vs. 16◦ ± 8◦, *p* = 0.408). Glenoid RLL were significantly more frequent in patients with scapular notching (31% vs. 6% *p* = 0.038). Notching was not associated with GT (*p* = 0.611) and calcar resorption (*p* = 0.716). Patients with scapular notching presented lower clinical results (Table 3).

**Table 3.** Clinical outcomes according to notching at the last follow-up. No preoperative or demographical differences were found between the two groups.


CS, Constant Score; ASES, American Shoulder and Elbow Surgeon; SSV, Subjective shoulder value; AE; anterior elevation; ER, external rotation; IR, internal rotation.
