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Stress Fracture

Stress fracture is a common injury in sports as a result of rigorous training. These are tiny cranks in bone that are not strong enough to undergo the increased intensity of training.

Stress Fracture

It may affect any bone depending upon the demand of sports. Like stress fracture of lumbar vertebrae in gymnasts or tibial stress fracture in runners. Stress fractures can also arise in normal day to day activities in bones weakened because of osteoporosis.

Stress Fractures occur in 2 scenarios:

  1. Excessive force through normal bone
  2. Excessive force through abnormal bone e.g. Osteoporosis

Stress fractures commonly occur in the weight-bearing bones of the lower leg and foot. Track and field athletes are particularly susceptible to stress fractures, but anyone can experience a stress fracture.

Stress Fracture1

Stress fracture commonly occurs at following sites

  • Metatarsal (Foot)
  • Navicular (Mid-Foot)
  • Tibia (Shin)
  • Neck of Femur (Hip)
  • Pars intraarticularis (Lower Back – Spondylolysis or Spondylolisthesis)

CAUSES:

The sequences of event that lead to stress fracture are as follows

This is an overuse injury Overtraining/ rapid increase in intensity of training leads to fatigue fatigued muscles are unable to absorb excessive load the excess load/ stress is transferred to bone leads to tiny cracks in the bone called stress fracture.

Women are more susceptible to stress fractures. This can be attributed to a condition called “FEMALE ATHLETE TRIAD”.

  • Eating disorders (bulimia or anorexia),
  • Amenorrhea (infrequent menstrual cycle), and
  • Osteoporosis (reduced bone density).

As a female’s bone mass decreases, her chances of getting a stress fracture increases. The advice of a sports dietitian is highly recommended.

SYMPTOMS:

  • Pain with activity is the most common complaint
  • Pain subsides with rest.

DIAGNOSIS:

X-rays are commonly used to determine stress fracture. At times x ray is not helpful as features of stress fracture on X ray appears after few weeks. A CT scan or MRI may be needed.

Stress Fracture2

TREATMENT:

The most important aspect of treatment is rest from activity that caused the pain. Post stress fracture engage in pain-free activities for six to eight weeks. If the provocating activities are not given up it may cause larger and harder to heal stress fracture and in chronic conditions it may never heal properly.

The orthopedic doctor will look for bone density, hormonal issues, calcium, Vitamin D etc and treat accordingly.

Physiotherapist will analyze the strength, biomechanical faults, training regime and accordingly treat or make necessary changes.

Sports Dietitian will work on the diet of athlete to ensure adequate nutrition.

PREVENTION:

  • Appropriate rest after training
  • Gradually increase the intensity of training.
  • Cross-training – alternating activities that fulfills same fitness goals.
  • Apart from maximizing the main stream training like endurance in marathon runners, athletes should also be trained to achieve an optimal levels of strength and power.
  • Maintaining a healthy diet.
  • Use appropriate foot wear.
  • If pain or swelling occurs, immediately stop the activity and consult a physiotherapist or orthopedic doctor.