My wife and have just returned to NZ from a 17 day road trip from Albuquerque to Denver . Basically drove a day skied two days.
We are both 69. I have skied for 63 years including 15 years of masters racing all disciplines, and have had no skiing injuries.
My wife has skied for 44 years with no skiing injuries.
I ski hard (clocked 63 mph on ski tracks and finished the last day at Taos down Kachina peak and then Al's run).
My wife had a hip replacement last May and skies cautiously, but all mountain.
Our answer to prevention of ski injuries :-
1. Have the good luck to be born straight. look after your body.
Shaped skis have changed skiing from an aerobic sport to a strength sport. We consult a sports physiologist about six monthly. He does a body analysis then writes a program to match our condition. The program puts a lot of emphasis on using all of the smaller muscles around the large muscles. Lots of swiss ball work, and very little on machines. A huge amount of core work which I have now realized is essential for current ski technique. You cannot get way from the fact that having a straight and strong body is essential to avoid injuries.
2. You must have good equipment properly set up for you.
I saw skiers on 1989 Salomon rear entry boots and equivalent age skis. This is just plane dangerous.
I spend as much getting my boots fitted as I pay for them. (I have a right foot half an inch wider than my left foot and a bunion caused by gout in my right big toe.
Usually it takes two seasons to get my boots sorted and then I ski on them for five years before starting the painful process again.
Skis must be tuned. Doing it yourself is not rocket science, ( there are many You Tube instructional videos) and the basic equipment will cost you less than $100.
Skis need to be deburred and waxed at least every third day.
Bindings need to be correctly set.
3. Be careful out there! When you get off the lift look at the skiers and boarders around you. Try to sum up their skills and ski style.
I like to do fast carving turns and use up a lot of real estate. I used to get hit by skiers taking a straighter path and not realizing how quickly I was coming across the hill. I now wait until I can fit in between groups and look uphill as soon as I come out the fall line.
It takes work, common sense and a bit of luck to avoid injuries.