What Happens when You Have Sculptra Many Months Apart?

Generally Sculptra results are supposed to last about 2-5 years.
The material makes collagen form around the material which causes the area to swell. Its similar to what happens when a grain of sand enters an oyster. This causes the oyster to secrete the pearl which builds up around the grain of sand becoming much larger than the original particle.
The same goes for Sculptra. It takes time to build up collagen around the material and therefore we space out the injections.
The 11 month period between injections is a little bit longer than recommended but should not interfere with the short term result.
You may also benefit from additional treatments.

There is no downside to having the second injection done several months later.  You will not have lost any benefit with the first treatment.  

Sculptra is poly-L-lactic acid and works by stimulating your innate collagen production where it is injected. While timing of touchup Sculptra injection can be performed on an as needed basis after first 2-3 sessions, it is ideal that the duration between first couple Sculptra treatments be done 4-8 weeks apart. Each subsequent Sculptra injection builds upon the collagen stimulatory effect brought by the prior treatments. You will achieve better synergy when the first couple injections are performed according to the recommendation of your board-certified dermatologist or plastic surgeon.