Background:The purpose of the present study was to assess the role of vitamin D3 in proximal femur fracture in elderly patients. Methods: This is a retrospective study of 120 elderly patient presenting with lower limb fracture who were evaluated clinically and radiologically. Serum vitamin D3 level assessment done in all patient. Results: In my study, I have studied 120 patients of aged more than 60 years, presented to our hospital with lower limb trauma, 62.5% had proximal femoral fractures and 38.5% had other fractures of lower limb. Out of those patients 43% patients were male and 57% were female, which comes to 1:1.3 of male to female ratio. Previous history of fall is very common factor associated with proximal femoral fractures, in my study history of fall was associated with 42% of patients. Distribution of fractures was equal 1: 1 in patients not having history of fall. Proximal femoral fractures was four times more common in patients with previous history of fall, recurrent fall is due to proximal muscle weakness, imbalance, poor eye sight, loss of protective mechanism. In my study 43% of patients have serum d3 level <20 ng/dl, 34 %have serum vitamin d3 level 20 -30 ng/dl, and 23% have serum vitamin d3 level >30 ng/dl. Grading of the osteoporosis with singh index was noted in my study 60% of patients have singh osteoporotic index 3 or less than 3, and most of them had proximal femoral fractures. Patients having fractures of lower limb other than proximal femur have singh osteoporotic index 4 or more than 4.in patients of proximal femoral fractures most of them have singh osteoporotic index 3 or less than 3 and also most of them have serum vitamin d3 level <30 ng /dl. Conclusions: Assessment of vitamin d3 in proximal femoral fracture patients, it shows in Increase incidence proximal femoral fracture in low vitamin d3 level. Adequate dietary calcium intake has been associated with decrease rate of proximal femoral fractures, patients having proximal femoral fractures 66% was taking dietary calcium intake > 750 mg per day. same type of finding was found by feskanschi et al. in patients taking high dietary calcium and vitamin d3 intake have less chance of hip fractures.

Periprosthetic fractures of the femur after hip arthroplasty represent a difficult treatment challenge. The results of management of periprosthetic fractures have varied greatly due to factors such as bone quality, fracture pattern and method of treatment including non-operative measures, reduction fixation, or revision surgery. These treatments have historically been fraught with high incidence of complications, treatment failures and compromised outcomes. Despite these problems, surgical treatment has become the standard in treating the majority of periprosthetic femur fracture. This study was to assess the functional outcome of patient who underwent treatment for periprosthetic fracture following hip arthroplasty. It is a retrospective study of 20 patients, 12 male and 8 female, with average follow up was minimum of 8 months and maximum of 24 months. Patient who underwent treatment for periprosthetic fracture following hip arthroplasty and intraoperative periprosthetic fracture were included in this study. Medically unfit patients were excluded from this study. Revision long stem, locking plate, ss wire and cable graft. Outcome was analyzed functionally by harris hip score. Our study demonstrates good functional outcome in periprosthetic fracture with few complications. Keywords: periprosthetic fracture hip, harris hip score.