From: Comparison of the ALPS and PHILOS plating systems in proximal humeral fracture fixation – a retrospective study
ALPS
PHILOS
Number of patients with implant removal (%)
2 (10)
10 (37)
Causes (% of patients)
avascular necrosis
2 (7)
screw perforation
0 (0)
5 (19)
impingement
stiffness
1 (4)