Akademik Veri Yönetim Sistemi
22. Ulusal Anatomi Kongresi , Ankara, Türkiye, 13 - 17 Ekim 2021
Objective:
Because of the unique architecture and shape of the proximal ulna, particular
difficulties exist for fixation and restoration for its fractures. The present study
aimed to evaluate the proximal ulnar angulations anatomy that contributes to
its different architecture.
Methods:
After ethical approval was obtained from the Clinical Research Ethical
Committee of Istanbul Faculty of Medicine (Date: 25/06/2021, number: 13), a
sample of 107 adult ulnae that have no records of their age and sex was studied.
A digital caliper was used to measure the ulnar length (UL), point of varus
angulation (PVA), and widths at the point of varus angulation. The proximal
ulnar angulations (proximal ulna torsion angle (PUTA), varus angulation (VA),
articular angle (AA), proximal ulna dorsal angulation (PUDA),
olecranon–diaphysis angle (ODA)) were determined with a goniometer. SPSS 21.0
(IBM Corporation, Armonk, NY, USA) was used for statistical analysis. In
addition to descriptive statistics, Student t tests were used for comparison
between two sides. Pearson correlation was calculated to evaluate relationships
for parametric values whereas, Spearman’s correlation was used for
non-parametric ones.
Results:
The average UL was 261.17±43.06 mm, PVA was 82.27±10.65mm, total width was 15.04±1.83
mm, posterior-interosseus width was 13.71±2.36mm and posterior-anterior
width was 15.15±1.92mm. The mean PUTA, VA, AA, PUDA and ODA were found 27.10 o±9.04o,13.61o±3.17o, 26.12o
±3.99o, 7.57o±3.80o and 17.39o±5.32o, respectively. The VA was statistically significant
differences between right and left (p < 0.05). A significant correlation was
found between AA and ODA (p < 0.001).
Conclusion:
The mean values of the angulations of proximal ulna can provide valuable data
during surgery for the fixation of ulna. We believe that knowing these
angulations may facilitate the intraoperative restoration of proximal ulna
complex anatomy when dealing with comminuted or Monteggia fractures.
Keywords:
Ulna; proximal ulnar angulations; fracture.