Extended deep femoral angioplasty: An alternative to femoropopliteal bypass

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Abstract
The results of extended deep femoral angioplasty (EDFA) have been analysed for 74 legs in 72 patients. In 69 per cent a femoropopliteal bypass would have been possible, so EDFA is considered here as an alternative operation. The success rate was 66.9 per cent, the failure rate 25.6 per cent and no effect was achieved in 7.5 per cent. Diabetes adversely affected the results. Of the failures, 45 per cent were diabetic, while the incidence of diabetes was only 14 per cent in the group where the operation was successful. The long term results of the operation were reasonable, 75 per cent being successful for 10–39 months. Age had no bearing on success or failure. The effects of EDFA were most dramatic on intermittent claudication. In 52 per cent it was abolished and in 92 per cent claudication distance was increased to over 200 yards. Good results were achieved after failed lumbar sympathectomy and failed femoropopliteal bypass. Successful results of EDFA could be predicted best by inspection of angiograms. Success or failure could have been predicted from the state of the run-off in 81 per cent of the cases. Claudication and rest pain were the most relieved by EDFA, followed by ischaemic ulceration of the leg. Gangrene of digits was helped but less than had been hoped. We conclude that the indications for femoropopliteal bypass are limited to cases of digital gangrene where angiography shows that bypass is possible or where an EDFA operation has failed.