Children don’t suffer from the joint aches and pains experienced by older adults plagued by arthritis. Instead, they have sports injuries (or other traumatic injuries), orthopedic problems they might be born with (e.g., developmental dysplasia of the hip, clubfoot), and tumors. The recent increase in antibiotic resistant bacteria leading to skin and muscle infections has affected children as well as adults.
There aren’t pediatric orthopedic specialists in every town in America. But any large area and especially any pediatric hospital will have a pediatric orthopedic surgeon (specialist) on staff.
Sometimes an orthopedic surgeon will do a pediatric fellowship. That means after training to be an orthopedic surgeon (and maybe even working for awhile in that capacity the surgeon goes back to school to learn about children’s orthopedic problems. Then it’s possible to offer his or her services to children and teens as a subspecialty while still seeing adults.