Young children should not go down a playground slide while sitting on another person's lap. This was the conclusion of a study looking at playground injuries. In particular, one pediatric surgeon reviewed the records of 58 children who sustained a tibialfracture over an 11-month period of time. The tibia is the larger of the two bones in the lower leg. Eight of those fractures occurred while going down the slide on the lap of an adult (usually the parent).

You may not be at fault in any way. Sometimes nature takes its own course and it has nothing to do with our actions or inactions.

Sacral agenesis (the absence of a sacral bone at the base of the spine) is uncommon, but not unheard of. About one in every 25,000 children born have some kind of sacral anomaly or defect. Sometimes, the bone is completely missing as with your child. In other cases, only half of the sacrum is present or there may be a part missing on both sides.

Sometimes babies are born with defects or anomalies like missing vertebral bones, only half of a vertebral bone formed, fused vertebral bones, and/or fused ribs. These defects result in curvature of the spine called congenital scoliosis.

At this point, scientists still don't know the etiology or cause of congenital scoliosis. To help understand this condition, let's go right back to the moment of conception. The sperm meets the egg, penetrates, and fertilizes it.

Sometimes babies are born with defects or anomalies like missing vertebral bones, only half of a vertebral bone formed, fused vertebral bones, and/or fused ribs. These defects result in curvature of the spine called congenital scoliosis. Any time this happens, the parents wonder, What did I do wrong? How did this happen?

Osteosarcoma (bone cancer) is a rare form of cancer with only about new 560 cases diagnosed each year. Children and teens are affected most often because of how fast they are growing. Rapid turnover of bone cells goes haywire when tumor-suppressor genes that normally regulate the bone cell cycle get turned off or get side tracked.

Osteosarcoma, also known as osteogenic sarcoma, is a rare malignant tumor that targets fast growing bone cells, which is why children and teens are affected most often. Edward Kennedy, Jr., lost his right leg due to bone cancer at the age of twelve in 1973. Much has changed since then in terms of treatment.

Osteosarcoma (bone cancer) is the topic of this review article. It's a rare form of cancer with only about new 560 cases diagnosed each year. But it can have devastating effects and a poor prognosis, so articles like this are very helpful in keeping us up-to-date on the diagnosis and treatment of this disease.

Not necessarily. While it's true that many athletes do get injured, there are ways to protect children and prevent some of these injuries. Here's what we know so far. First, to give you an idea of how common sports participation is -- there are over seven million high school students involved in athletics each year in the United States. And about two million injuries each year as well. About one in 10 of those injuries is really a repeat or recurrent injury.

It's clear now to sports professionals that pitching every inning of every game is no longer a good idea. But that's how it was done in the early days of baseball and for many years after. Fatigue (no matter how strong the athlete is) can lead to injury. Researchers have studied this problem trying to determine a formula whereby a pitcher would be able to calculate exactly how many pitches would be safe.

The accuracy and speed of the pitch depend on many, many actions such as the foot position and orientation (turned out/turned in), shoulder and pelvis rotation, knee extension, and trunk motion and position.