indications: indicated for patients w/ a femoral neck frx who meet the following criteria:
- poor general health thay would prevent a second operation;
- pathologic hip fractures:
- parkinson's disease, hemiplegia, or other neurological disease;
- physiologic age> 70 yrs;
- severe osteoporosis w/ loss of primary trabeclae in femoral head (see Singh Index);
- inadequate closed reduction;
- displaced frx which is several days old;
- pre-existing hip disease (DJD, RA, AVN);
Wheeless' Textbook of Orthopaedics

55 BHU bicentric bipolar hemiarthroplasties were reviewed after a mean follow up of 4 years (range 1-5 years). Patients with displaced subcapital fractures were selected for operation on the basis of good mobility before the fracture. Object of the study was to see the efficacy of BHU bipolar prostheses and functional outcome.
Anil K Rai reader , Rakesh Agarwal Jr III , Saurabh Singh lecturer and Ratnav Ratan Jr I Journal of Trauma Management & Outcomes 2008, 2:7 Full text available