![]() The obvious cause of a tibial stress fracture is overuse, however, there are a number of factors which can increase the chances of sustaining a tibial stress fracture. Lots of small impacts on the bone even though they may be very small, result in a cumulative build-up. Therefore, there is more load on the bone. This is because your muscles are unable to absorb some of the load. ![]() In particular, fatigue causes the distribution of forces in the bone to alter. Continuous muscle contractions and stress forces of impact cause the tibia to overload. Long bones such as the tibia have an outer sheath surrounding the hard compact bone called the periosteum with the inner core containing bone marrow. The most common site, however, is two to three inches above the bony bit on the inside of the ankle (called medial malleolus) on the tibia bone. ![]() Either of these bones can develop stress fractures. Its purpose is mainly as an area for muscles to attach. The tibia is the larger, thicker of the two and its role is load-bearing. The lower leg consists of two bones, called the tibia and fibula. Often you then see new bone growth where it has begun to heal. If you suspect a stress fracture of the tibia then rest for at least 4 weeks before taking a second X-ray. It is the new cells along the line of the fracture which will become visible. This is because a stress fracture will not show up on an X-ray until it has begun to heal. It can be difficult to distinguish a tibial stress fracture from a case of shin splints. If you have a stress fracture you may also feel a particularly tender spot at the exact point of the stress fracture.You may even have swelling over the site of the fracture.When pressing in over the area your leg will feel tender and sore.Symptoms often occur after running long distances.Pain on the inside of the shin, usually on the lower third.Tibial stress fracture symptoms are very similar to shin splints (medial tibial stress syndrome) and include:
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