Abstract
Introduction
For the increasing number of frail elderly patients in Japan, mobility is crucial to stay independent and maintain quality of life. After failure reports with standard implants, a prospective multicentre study was performed to evaluate whether an implant designed for Asians enables rapid recovery after unstable trochanteric fractures.
Materials and methods
Patients with an AO 31A2 or A3 fracture sustained less than 7 days before fracture fixation with the Asian version of the Proximal Femoral Nail Antirotation. Those with severe dementia and bedridden or confined to a wheelchair were excluded. Outcome parameters were quality of life (SF36v2, EQ5D), mobility (Parker Mobility score PMS) and range of motion (ROM).
Results
Median age of the 176 pat. was 84 yrs; 88% had comorbidities, 25% were underweight/severely underweight. After 1 year, mean relative ROM was 90% for flex/ext, 88% for abd/add compared to the healthy side. Although the median PMS decreased from initial 9 to 6 points at 1 year, 42% returned to within 1 point of their pre-injury level. 60% and 76% returned to their pre-injury residential status at 6 and 12 months, resp. 43% and 65% of patients at 1-year had no problems with their mobility and self-care assessed with the EQ5D. All 8 SF36 dimensions were similar at pre-injury, 6 and 12 months.
Discussion
Frail elderly patients can achieve good function and quality of life after a trochanteric fracture treated with a size and geometry adapted implant.
