Hip Cracking
What Is Hip Cracking?
Hip cracking (medically called "snapping hip") is a snapping or catching sensation felt or heard in the hip when walking, getting up from a chair or moving the leg. It is usually caused by muscles and tendons sliding over bony prominences at the hip, and it is generally painless and harmless.
In most people cracking is not a problem and needs no treatment. However, if the cracking is accompanied by pain, catching or a sense of giving way, there may be an underlying tendon irritation (bursitis) or an intra-articular problem (a labral tear); in that case assessment is needed. For other hip problems you can review the hip page.
Types by Location
Cracking is grouped by where the sound comes from; this determines the underlying structure and the treatment.
- Outer side (most common): the iliotibial band sliding over the outer prominence of the femur (the greater trochanter). A distinct "snap" is felt as the hip bends.
- Front: the iliopsoas tendon flicking over the bony and soft structures at the front of the hip; it is usually felt deep in the groin.
- Intra-articular: catching and cracking caused by a labral tear or a problem on the joint surface; it is usually accompanied by pain and discomfort in the groin.
What Causes It? Risk Factors
Cracking is usually related to tightness of the muscles and tendons and to repetitive movements. It is more common in certain groups.
- Tightness and imbalance of the muscles and tendons around the hip.
- Activities that require repetitive bending and rotation (dance, gymnastics, athletics, football).
- Relative tightening of the muscle-tendon structures during the rapid growth of adolescence.
Symptoms
The symptoms vary according to whether the cracking is painless (in most people) or painful.
- A snapping or catching felt with particular movements (stairs, getting up from a chair, turning).
- In painful cases, pain on the outer side of the hip or in the groin along with the cracking.
- In intra-articular cases, locking, catching and groin pain that increases with rotation.
When Is It a Warning Sign?
A painless cracking that causes no discomfort is not a disease on its own and usually does not even need follow-up. What makes cracking a problem is the pain and loss of function that accompany it.
Painful cracking on the outer side suggests irritation of the iliotibial band and the bursa (greater trochanteric pain syndrome). Deep groin pain that increases with rotation, along with locking, can point to an intra-articular problem (a labral tear, impingement); this distinction determines the treatment.
Diagnosis: Examination and Imaging
The diagnosis is usually made from the history and physical examination. The movement that reproduces the cracking is observed; the location of any pain, the triggers and the range of motion of the hip are assessed.
Imaging is usually not needed in a painless, typical cracking. If there is pain, locking or a suspected intra-articular problem, an X-ray is requested to assess the bone structure and MRI to show the state of the labrum and cartilage.
One aim of the examination is also to tell apart other conditions that can mimic cracking. Hip arthritis, impingement and tendon problems can cause similar sounds and pain, so the location of the complaint, its triggers and the accompanying findings are assessed as a whole.
Non-Surgical Treatment
In painless cracking, explanation and reassurance are usually enough. In painful cases treatment begins with non-surgical measures and aims to release the tight structures and restore muscle balance.
- Activity modification and temporarily reducing the movements that provoke pain.
- Physiotherapy: stretching the iliotibial band, iliopsoas and the muscles around the hip and balanced strengthening.
- Short-term cold application and anti-inflammatory medication under medical advice to manage pain and inflammation.
- A corticosteroid injection in resistant cases with accompanying bursitis in selected patients.
Common exercises in physiotherapy target the tight structures: side stretches that lengthen the iliotibial band, iliopsoas and rectus femoris stretches for front cracking, and exercises that strengthen the hip abductor muscles. When done regularly and within the limits of pain, exercise can reduce the frequency and intensity of the cracking; forceful stretches are avoided.
When Is Surgery Needed?
Surgery is rarely needed for hip cracking. It is considered in outer or front-type cases where pain persists despite adequate non-surgical treatment, or in patients found to have an intra-articular problem (a labral tear).
In these situations releasing the tight tendon or repairing the labrum arthroscopically may come onto the agenda. The decision is made on an individual basis according to the cause of the cracking and the severity of the complaint.
Prevention and Recovery
Painful cracking usually has a good outcome when managed correctly; however, it can recur if the underlying tightness and muscle imbalance are not corrected. Regular stretching and strengthening are the most effective approach to reducing recurrence. A painless cracking does not need any special "fix"; the aim is to manage the conditions that cause pain.
- Regular stretching of the iliotibial band and the muscles around the hip.
- Balanced strengthening of the hip and trunk muscles and warming up before activity.
- Increasing load and intensity gradually and avoiding repetitive overload.
When Should You See a Doctor?
Painless cracking usually needs no concern; however, some symptoms call for assessment.
- The cracking is accompanied by pain and affects daily activities.
- There is locking, catching or a sense of giving way in the hip; these suggest an intra-articular problem.
- The complaint persists or increases despite simple measures taken at home.
For the assessment of hip symptoms you can contact Assoc. Prof. Serkan Sürücü, and you can also review the other conditions covered within hip surgery.