What is a bone stress injury (BSI) and how do I know I have one? How long will it take to get me back to running? As a physical therapist who treats a lot of runners and as a lifelong runner myself, I have always had a passion for keeping runners running. The act of running can make someone’s day tick along better, can help with consistent sleep, calm the nerves and can even make a runner more fun to be around. It can be social or an act of solitude. It can be alarming for a runner when they start to experience a nagging pain that doesn’t warm up or even worsens as they run. Pain that doesn’t dissipate with a warm-up routine or is vague at first but then becomes localized or intensifies through the run can be a sign of a bone stress injury or BSI. BSI is a general term indicating mechanical load is exceeding the bone’s structural ability to withstand the load. However, BSIs occur on a continuum. One end of that continuum is a stress reaction, the other end can be stress fracture or even a full fracture of the bone. The runner recognizes this as pain that isn’t normally present. BSIs can occur for many reasons whether due to biomechanics or from a nutritional standpoint or a combination of both. As high-school and college cross-country runners prepare now for this upcoming season, they should be aware of the common causes and ways to prevent bone stress injuries.
Medial Tibial Stress Syndrome
What is Medial Tibial Stress Syndrome?
Medial tibial stress syndrome (MTSS), also known as “shin splints”,
is an overuse injury that causes pain at the front of the shin with exercise. MTSS is an early stress injury along a spectrum that includes tibial stress fractures. It is most common in runners, jumping athletes, and military personnel-- individuals which undergo recurrent impact exercise.
Differential diagnosis of MTSS requires clinicians to distinguish MTSS from tibial stress fractures, exertional compartment syndrome, peripheral vascular disease or popliteal artery entrapment, and other less common causes of exertional pain in the lower extremities, including muscle or fascia involvement or nerve entrapment syndromes.