His bone age is 17 yrs. all of the epiphyses are closed the exception of the distal radius and ulna. his knee plates are closing. any way to grow?

Yes....a bit: People will gain additional height through the growth plates in their spine until they are in their 20s. This will be minimal however.

Unfortunately, no: With that much bone fusion and only a bit of opening at the radius and ulna, there is little to no growth left. Medications that exist to help promote growth and to hault bone maturation are effective only when there is a good amount of bone maturation left to work with. Hope this answers your question.

Not significant: With a bone age of 17, the distal ulna and radius are just shy of complete fusion in a boy. Final height is better correlated with bone age of left hand, fingers, and wrist than other growth plate sites in older children. We sometimes look at hemiskeletal bone age in the very young child when the left hand, wrist, and fingers might have lots of developmental variability.

Growth in the spine: in the vertebral bodies or vertebrae still occur even after the hands and feet and limbs have closed growth plates and it often does. there are 24 pre sacral vertebrae, of each one adds only 1mm then that is an inch. Growth occurs in the spine until about age 20, but slows compared to the rates shown in adolescence