抄録
Ten proximal humeral fractures patients (two males and eight females) with an average age of 65.8 years (range; 47 to 78 years) treated operatively using an intramedullary locked nail (Polarus nail) were studied.
The average period of follow-up was 9.9 months (range; 4 to 21 months). The subjects consisted of eight cases of 2-part and two cases of 3-part fractures classified according to the Neer system and the results were assesed by post operative X-ray and the JOA score system.
The mean postoperative JOA acore was 81.5 points (range; 40 to 98). All cases achieved complete bone union, but one case of total avascular necrosis of the humeral head fragment and one case of back-out of the proximal screw were found in this series.
