Stress Fractures Around the Knee: Bone Pain That Builds With Training

What is a stress fracture?

Bone constantly repairs itself in response to load. When training increases faster than the bone can adapt, tiny areas of damage build up faster than they are repaired. First the bone becomes inflamed and swollen (a stress reaction), and if loading continues a fine crack forms (a stress fracture).

Around the knee, the most common site is the upper part of the shin bone (tibia), especially on the inner side just below the joint. The lower thigh bone (femur), the top of the fibula on the outer side, and rarely the kneecap can also be affected. In older adults with weaker bones, a similar injury called an insufficiency fracture can happen with normal daily activity.

Symptoms in patients' own words

• "It started as an ache after my runs and now it hurts during them"
• "There's one spot on the bone just below my knee that is very tender"
• "It hurts to hop on that leg"
• "Now it aches at night and when I'm resting"
• "There's a little swelling on the inside of my shin"

The pattern is typical: pain builds gradually over days to weeks, rather than starting with a single injury, and gets worse with each session if training continues.

Causes and who gets it in Qatar

The main cause is doing too much, too soon. Common situations include:

• Runners increasing distance or pace quickly, or training for a race
• Military and police recruits during basic training, with long marches, drills and carrying loads
• Moving training from outdoor surfaces to treadmills or hard tracks, or changing shoes
• Returning to sport after a long break, such as after the summer or after Ramadan

Bone health also matters. Low vitamin D is common in the Gulf, partly because many people stay indoors and out of the sun during the hot months. Low calcium intake, low body weight, not eating enough for the amount of training, irregular periods in women, smoking and some medicines all weaken bone and raise the risk. When stress fractures happen with modest training, or more than once, bone health should be checked.

Diagnosis

Dr. Gelber asks about your training history and examines the knee and shin for pinpoint bone tenderness, swelling and pain on hopping. X-rays are often normal in the first weeks because the crack is too fine to see, and may show healing later.

MRI is usually the most useful test. It detects a stress reaction early, shows the extent of the injury, and rules out other causes such as tendon or meniscus problems. Blood tests can check vitamin D, calcium and other markers of bone health, and a bone density scan may be suggested when the risk profile points that way.

Treatment

Most stress fractures around the knee heal without surgery.

• Stop the activity that causes pain, and use crutches if walking hurts
• Keep fit with low-impact exercise such as swimming, pool running or cycling, but only if it causes no pain
• Correct low vitamin D and calcium under medical guidance
• Make sure you are eating enough for your training
• Work with a physiotherapist on strength, hip and core control, and running technique

Surgery is uncommon. It may be considered for a fracture that has moved out of position, a fracture in a high-risk location, or one that fails to heal despite proper rest.

Recovery and return to training

Healing usually takes from several weeks to a few months, depending on the site and severity. Return to running is gradual and only once you can walk and hop without pain and the tender spot has settled. A structured return, building time and distance slowly over several weeks, lowers the risk of the injury coming back.

In Qatar's summer, plan sessions for cooler hours or indoors, and change only one thing at a time: distance, pace, surface or footwear. Recruits should report pain early to their training medical team rather than pushing through.

When to see a specialist in Doha

See a knee specialist if bone pain near the knee keeps building with activity, hurts at rest or at night, or if one spot on the bone is very tender. Seek urgent care for sudden severe pain, inability to bear weight or a visible deformity. Dr. Gelber assesses training-related knee pain at Aman Hospital in Doha.