Study of Contralateral Hip in Patients with Hip Fracture

Abstract

Background: This study was done to know whether patients with hip injury have pre-existing osteoporosis due to which, the patient sustained the fracture, subsequent fracture of the contralateral hip, any osteoarthritic changes of the contralateral hip at the time of index fracture, and ten-year probability of a major osteoporotic fracture by calculating fracture risk assessment percentage (FRAX%). Methods: 34 patients were evaluated for age, gender, body mass index (BMI), fracture type, Singh index, bone mineral density (BMD), T-scores using dual-energy X-ray absorptiometry (DEXA) scan, and ten-year probability of fracture using FRAX%. Results: Average age of the patients with hip fractures was 72.1 years. About 85% of patients were women. 67.6% of the patients were with BMI of 18.5-25 kg/m2 . The Singh index for osteoporosis fell in grades 2 and 3 in most patients. The mean interval between index fracture and contralateral hip injury was 4.25 years. Osteoarthritis of the contralateral hip was seen in 9%. The probability in ten years of hip fracture in 30 indexed patients using the FRAX% tool was 15%, and for 4 patients who were having bilateral hip fractures was 22.75%. There was a significant relationship between FRAX% with the Singh index and osteoarthritis of the contralateral hip. FRAX% was high in female patients. Conclusion: Contralateral hip fracture in patients with osteoporosis was high in women and patients with low and high BMI. Fractures were also high in patients with low Singh index and T-scores. FRAX% increased with an increase in age and increased with a decrease in T-score.