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Groin Strain

What is a Groin Strain?

A groin strain is an overstretch or tearing injury to the muscles of the inner thigh or front of the hip. Groin strains make walking, lifting the knee, or moving the leg away from or toward the body difficult and painful. Groin strains can occur from overuse of the muscles, or from a sudden contraction of the muscles.

The injury occurs when the muscles are either too forcefully contracted or too forcefully overstretched. A muscle strain can be graded according to the amount of muscle damage:

Grade 1: Mild or partial stretch or a tear of a few muscle fibers. The muscle is tender and painful but maintains its normal strength. Use of the leg is not impaired, and walking is normal.
Grade 2: Moderate stretch, or tearing of a greater percentage of the muscle fibers. There is more tenderness and pain, noticeable loss of strength, and sometimes bruising. Use of the leg is noticeably impaired, and limping when walking is common.
Grade 3: Severe tear of the muscle fibers, sometimes a complete muscle tear. A “popping” sound may be heard or felt when the injury occurs. Bruising is apparent, and sometimes a “dent” in the muscle may be seen under the skin at the site of the tear. Use of the leg is severely difficult, and putting weight on the leg is very painful.

When groin muscles are strained or torn, muscle fibers and other cells are disrupted. Bleeding can occur, which causes bruising. Within a few minutes to a few hours after the injury, swelling can occur, causing the injured area to expand and feel tight and stiff.

Although groin strains most often occur in athletic activities such as football, soccer, and dance, they also can occur during everyday activities such as lifting heavy items, slipping while walking, or climbing stairs or ladders.

How Does it Feel?

A groin strain causes sharp pain or spasms in the groin area. The pain can quickly resolve, or it can persist, developing into a throbbing pain at rest with sharp stabs of pain when you try to move your leg or walk. The muscles can feel tight or weak. Trying to lift the leg or knee, or bringing the knees together, can also cause sharp pain. These movements can feel tight or even cause the groin muscles to spasm.

If the groin strain involves a Grade 3 (complete) tear, a “pop” may be felt or heard when the muscle tears at the time of injury.

Signs and Symptoms

With a groin strain, you may experience 1 or more of the following:

  • Pain and spasms in the groin area
  • Swelling in the groin area
  • Bruising in the groin area
  • Tightness in the groin area
  • Weakness in the leg when trying to walk, climb stairs, or move the leg
  • Limping when walking
  • Difficulty performing daily activities that require standing and walking

How Is It Diagnosed?

If you see your physical therapist first, he or she will conduct a thorough evaluation that includes taking your health history. Your physical therapist will ask you:

  • What you were doing when you first felt pain
  • Where you felt the pain and if you heard a pop when it occurred
  • If you received a direct hit to your leg or groin area
  • If you noticed any swelling in the first 2-3 hours following the injury
  • If you experience pain when lifting your leg, walking, moving the leg away from you, or drawing your knees together

Your physical therapist will perform special tests to help determine whether you have a groin strain, such as:

  • Gently moving your leg away from your body
  • Asking you to resist against his or her hand as he or she tries to gently push your leg outward (muscle strength test)
  • Gently feeling parts of the muscle to determine the specific location of the injury (palpation)

Your physical therapist may use additional tests to assess possible damage to other parts of your body, such as your hip or lower back.

To provide a final diagnosis, your physical therapist may collaborate with an orthopedist or other health care provider. The orthopedist may order further tests—such as an X-ray or magnetic resonance imaging (MRI) —to confirm the diagnosis and to rule out other potential damage. These tests, however, are not commonly required for a groin strain.

How Can a Physical Therapist Help?

Your physical therapist will design a specific treatment program to speed your recovery. This program will include exercises and treatments you can do at home to help you return to your normal lifestyle and activities.

The First 24-48 Hours
Your physical therapist may advise you to:

  • Rest the area by avoiding walking or any activity that causes pain. Crutches may be recommended to reduce further strain on the muscles when walking.
  • Apply ice packs to the area for 15-20 minutes every 2 hours.
  • Compress the area with an elastic bandage wrap.
  • Consult with another health care provider for further services such as medication or diagnostic tests.

Reduce Pain
Your physical therapist can use different types of treatments and technologies to control and reduce your pain, including ice, heat, ultrasound, electricity, taping, exercises, and hands-on therapy such as massage.

Improve Motion
Your physical therapist will choose specific activities and treatments to help restore normal movement in the leg and hip. These might begin with “passive” motions that the therapist performs for you to gently move your leg and hip joint, and progress to active exercises and stretches that you perform yourself.

Improve Strength
Certain exercises will benefit healing at each stage of recovery; your physical therapist will choose and teach you the appropriate exercises to steadily restore your strength and agility. These may include using cuff weights, stretchy bands, weight-lifting equipment, and cardio exercise equipment such as treadmills or stationary bicycles.

Speed Recovery Time
Your physical therapist is trained and experienced in choosing the right treatments and exercises to help you heal, return to your normal lifestyle, and reach your goals faster than you are likely to do on your own.

Return to Activities
Your physical therapist will collaborate with you to decide on your recovery goals, including your return to work or sport, and will design your treatment program to help you reach those goals in the safest, fastest, and most effective way possible. Your physical therapist will apply hands-on therapy such as massage, teach you exercises and work re-training activities. Additionally, if you are an athlete you will be taught sport-specific techniques and drills to help you achieve your sport-specific goals.

Prevent Future Reinjury
Your physical therapist can recommend a home exercise program to strengthen and stretch the muscles around your hip, upper leg, and abdomen to help prevent future re-injury of your groin. These may include strength and flexibility exercises for the leg, hip, and core muscles.

If Surgery Is Necessary
Surgery is rarely necessary in the case of a groin strain, but if a groin muscle fully tears and requires surgical repair, your physical therapist will help you minimize pain, restore motion and strength, and return to normal activities in the speediest manner possible after surgery.

Can this Injury or Condition be Prevented?

The following can help you prevent groin strains:

Increase the intensity of activity or sport gradually, not suddenly. Avoid pushing yourself too hard, too fast, or too soon.
Always warm up before starting a sport or heavy physical activity.
Follow a consistent strength and flexibility exercise program to maintain good physical conditioning, even in a sport’s off-season.
Wear shoes that are in good condition and fit well.
Use correct lifting techniques.

Real Life Experiences

Brendan walks outside his house in the wintertime when the sidewalk is icy and slippery. His foot slips out from underneath him and his right leg suddenly slides forward while his left leg remains behind him. He falls down with his right leg and left leg stretched out in opposite directions, and feels immediate pain in his right groin area. He has difficulty standing up and climbing up his front steps; he limps back inside his house. Brendan is concerned because he has to climb stairs and walk at work, and his yearly ski trip is just 3 weeks away.

Brendan is able to see his physical therapist the next day. The physical therapist performs tests that reproduce Brendan’s pain to a moderate degree to assess his injury. The physical therapist determines the injury is a Grade 1 strain. She begins treatment to reduce his pain and swelling using ice and electrical stimulation. She teaches him how to compress and support the injury at home and at work using an elastic wrap, and shows him simple stretches and exercises he can start in 48 hours to help restore motion. She tells Brendan they will likely be able to start strengthening his leg in a few days, and that he may still be able to go skiing with his friends, although she can’t guarantee it. She reassures Brendan that she will reevaluate him every time he comes to the clinic, and she will adjust the treatment to help him recover as quickly as possible. Over the next 3 weeks, Brendan performs his exercises and treatments at home just as his therapist instructs him, and works with her on a steady program of strengthening and recovery. Since the initial strain was mild, and Brendan followed his therapy program correctly, he takes a minimal amount of time off from work and heals in time to go on his ski trip.

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