Athletic Pubalgia: Groin Pain Caused by Muscle Strain, Not Sports Hernia

Understanding Athletic Pubalgia

Athletic pubalgia, commonly referred to as a 'sports hernia,' is a frequent cause of groin and lower abdominal pain in athletes and active individuals. However, it differs from a genuine inguinal hernia, primarily involving strains or tears in the tissues connecting the rectus abdominis muscles of the abdomen and the adductor muscles of the thigh.

This condition is particularly prevalent in sports that involve high-speed running, sudden changes in direction, kicking, and rapid body twisting. The pain associated with athletic pubalgia typically begins gradually and can be felt deeply in the groin or lower abdomen.

Symptoms and Presentation

In its early stages, the pain may only occur during physical activity. However, as the condition progresses, it can start to interfere with daily activities. An exacerbation of pain with movements like sprinting, kicking, cutting, and twisting is a clear indicator of this issue.

Pain can also arise when performing sit-ups or contracting abdominal muscles against resistance. Similarly, experiencing pain during resisted contraction of the adductor muscles, which pull the leg towards the body, is considered a significant symptom.

Crucially, unlike a typical inguinal hernia, athletic pubalgia usually does not present with a visible external bulge. While pain may subside with rest, it often recurs upon resuming sports activity.

Affected Anatomical Structures

Several key anatomical structures can be affected in athletic pubalgia. These include the insertion of the rectus abdominis muscle, the conjoint tendon, the external oblique aponeurosis, the origin of the adductor longus muscle, the pubic symphysis, and the posterior inguinal wall.

The repetitive stretching and strain on these structures during sports activities are the primary culprits behind the pain and injury.

Distinguishing from Femoroacetabular Impingement (FAI)

Another significant cause of groin pain is Femoroacetabular Impingement (FAI). While both conditions can cause groin pain in athletes, they have distinct characteristics.

Athletic pubalgia pain is primarily located in the groin and lower abdomen, whereas FAI pain is more pronounced in the deep anterior part of the hip. Specific sports activities that aggravate athletic pubalgia include sprinting, kicking, and changes in direction. In contrast, FAI is more aggravated by hip flexion, squatting, and prolonged sitting.

From a diagnostic perspective, resisted adduction and resisted sit-ups are often painful in athletic pubalgia, while these symptoms are less specific to FAI. Conversely, the FADIR test (a specific hip joint movement test) is frequently positive in FAI and typically negative in athletic pubalgia.

Diagnostic Approaches

For diagnosis, an MRI of the pelvis can be beneficial in evaluating athletic pubalgia. Depending on the situation, an X-ray, MRI, or CT scan of the hip may be used to assess FAI.

Co-existence and Holistic Evaluation

It is important to recognize that athletic pubalgia and FAI are not always mutually exclusive; they can co-exist in many athletes, complicating diagnosis and treatment.

Therefore, a comprehensive physical assessment is essential for athletes experiencing persistent or recurrent groin pain. This evaluation should include assessing hip range of motion, the strength of adductor and abdominal muscles, the sensitivity of the pubic area, and an overall examination of the inguinal structures.

An accurate identification of the root cause is crucial for developing an effective treatment plan and preparing the athlete for a safe and timely return to sport. This holistic approach helps athletes find a lasting solution to their condition and prevent future injuries.