Issues

Osteoporosis is a risk factor for locking-plate implant failure of proximal humerus fractures

Journal: Osteologie
ISSN: 1019-1291
Topic:

Alterstraumatologie

Issue: Issues of 2014 (Vol. 23): Issue 1 2014 (1-72)
Pages: 16-21

Osteoporosis is a risk factor for locking-plate implant failure of proximal humerus fractures

F. Haasters (1), J. Kindsvater (1), G. Siebenbürger (1), W. Mutschler (1), B. Ockert (1)

(1) Klinik für Allgemeine, Unfall-, Hand- und Plastische Chirurgie, Klinikum der Universität München (LMU), München

Keywords

Osteoporosis, Locking plate fixation, Proximal humeral fractures

Summary

Objectives: Locking plate fixation for the treatment of unstable proximal humeral fractures in the elderly is widely accepted. Within this patient group osteoporosis is a common co-morbidity. Therefore, the present study aimed to evaluate the influence of osteoporosis on failure of locking plate fixation and on fracture pattern. Methods: Women > 50 and men > 60 years with proximal humeral fracture and locking plate fixation were prospectively included over eight years with a follow up of two years. Bone mineral density measurement (DXA) was performed for all patients during in-patient hospital treatment. Results: Out of 167 patients 65,9 % were diagnosed with osteoporosis according to the WHO guidelines. Patients with osteoporosis showed a significantly higher rate of revision surgery (19,1 % vs. 7,0 %). Furthermore, osteoporosis was associated with a significantly higher incidence of AO 11-B2 and C2 fractures. These fracture entities showed a significantly higher rate of loss of fixation in osteoporotic patients. Discussion: In conclusion, patients with osteoporosis feature a significantly increased risk for complications and revision surgery after locking plate fixation of proximal humeral fractures. In addition to biomechanical limitations due to low bone mineral density, a different fracture pattern with focus on varus dislocation might contribute to a higher failure rate.

You may also be interested in...

1.
S. v. Stengel, W. Kemmler, K. Engelke

Osteologie 2008 17 1: 24-30

2.
K. Abendroth

Osteologie 2008 17 1: 17-23

3.

H. Haas 1, M. Amling 2, M. Baier 3, T. Blattert 4, E. Euler 5, S. Götte 6, P. Kaps 7, H. Kasperk 3, A. Kurth 8, P.-J. Meeder 3, H. Schwarz 9, W. E. Steinleitner 10, M. Weißkopf11

Osteologie 2008 17 1: 11-16