ANALYSIS OF ULNAR VARIANCE DISTRIBUTION IN LOCAL ADULT ORTHOPAEDIC PATIENTS

ABSTRACT Objective: To document the distribution of ulnar variance in the adult outdoor patients of orthopaedic clinic in tertiary care hospital of Pakistan. Study Design: Cross-sectional study. Place and Duration of Study: Pakistan Naval Ship Shifa Hospital, Karachi Pakistan, from May 2016 to May 2017. Methodology: From the outpatient clinic of orthopaedics, 243 individuals' wrist X-rays were taken after informed consent. X-rays were in postero-anterior view with neutral arm position. Ulnar variance was measured using the method of perpendiculars. Other relevant data included were gender, age, and dominant hand. The data were then analyzed using SPSS-22. Results: There were 175 males and 68 females in the collected sample with the mean age of 36.29 ± 11.26 years. In our study, the mean ulnar variance was 0.424 ± 1.4 with positive ulnar variance at a higher frequency of 56% followed by negative ulnar variance at 32.9% and finally neutral ulnar variance at 11.1%. Conclusion: In the outdoor adult orthopaedic patients of Pakistan Naval Ship Shifa hospital, positive ulnar variance predominates followed by negative ulnar variance and lastly neutral ulnar variance.