How to Fix an Externally Rotated Hip

Fixing an externally rotated hip depends on whether the rotation comes from tight muscles and soft tissue or from the shape of the bones themselves. Most people who notice their feet turning out or feel a persistent outward twist at the hip are dealing with a combination of muscular tightness, weakness, and habitual posture, all of which respond well to targeted stretching, strengthening, and movement retraining. A smaller but significant group has a structural cause called femoral retroversion, where the thighbone itself is angled in a way that pushes the leg outward. The fix for each scenario is fundamentally different, and sorting out which one applies to you is the most important first step.

Why Hips Settle Into External Rotation

The hip is surrounded by a group of deep muscles whose primary job is to stabilize the joint rather than generate powerful rotation. Research examining the architecture of the short external rotators, including the piriformis, obturator internus, obturator externus, and the gemelli, has found that these muscles have short fiber lengths and collectively large cross-sectional areas, a profile suited more for holding the femoral head steady in the socket than for spinning it forcefully.¹ When those stabilizers become chronically tight or hypertonic, they pull the thighbone into a resting externally rotated position. This is the soft-tissue version of the problem, and it is the more common one.

The other possibility is bony. The angle at which the femoral neck projects forward relative to the femoral shaft is called femoral version. People whose femurs are angled further back than average, a condition known as femoral retroversion, naturally sit in more external rotation and have limited internal rotation. A study of patients with hip pain confirmed that retroverted hips had significantly greater external rotation range, while anteverted hips had greater internal rotation, with a strong correlation between the bony angle and the ratio of internal-to-external rotation.² If your external rotation is coming from bone geometry, stretching alone will not change it.

Telling Soft Tissue Apart From Bone Structure

This distinction matters because the entire treatment path hinges on it. A quick clinical screen that physical therapists commonly use is Craig’s test, where you lie face down, bend your knee to 90 degrees, and the examiner rotates your lower leg while feeling the greater trochanter. The idea is that the position where the trochanter sticks out the most reveals your femoral version angle. Craig’s test does correlate moderately with MRI-measured femoral version in some research, showing a correlation of about 0.61 with imaging.³

However, a more cautious reading of the evidence suggests that Craig’s test is not the definitive answer. A study comparing Craig’s test measurements against CT scans found essentially no correlation between the two on either the involved or uninvolved side.⁴ Another study using dual-energy X-ray absorptiometry concluded that Craig’s test is not a valid assessment of true femoral version.⁵ Adding further complexity, repeated exercise can alter Craig’s test results by changing the extensibility of surrounding soft tissue, which means the test may be picking up muscle tightness rather than bone angle.⁶

What does this mean practically? Craig’s test can give your therapist a rough sense of direction, but if the clinical picture is unclear, or if conservative treatment is not working after several months, imaging is the reliable way to know whether you are dealing with bone or soft tissue. A simple comparison of how much internal versus external rotation you have at the hip, measured lying on your back, is actually one of the better clinical predictors, with the difference between internal and external rotation showing the highest correlation with MRI-measured femoral version in one study.³ If you have dramatically more external rotation than internal rotation, it is worth investigating further.

Stretching and Soft-Tissue Approaches

When the cause is muscular, the primary targets are the deep external rotators, especially the piriformis, and the broader posterior hip capsule. The classic piriformis stretch, performed by crossing one ankle over the opposite knee and pulling the bottom knee toward the chest, directly lengthens the muscle that runs from the sacrum to the top of the thighbone. A small randomized trial comparing myofascial release to stretching for piriformis tightness found that both approaches reduced pain and improved range of motion over four weeks, with no significant advantage of one over the other.⁷ In practice, this means you do not need expensive manual therapy to make progress; consistent stretching on your own produces comparable results for this particular muscle.

Beyond the piriformis, the other external rotators and the hip capsule itself can restrict internal rotation. Useful stretches include the 90/90 stretch, where you sit with both legs bent at 90 degrees and rotate your torso over the front leg, and the internal rotation stretch performed in a half-kneeling position. Foam rolling the glutes and using a lacrosse ball on the deep external rotators can help loosen tissue before stretching.

For people who already have hip osteoarthritis contributing to restricted internal rotation, a structured manual therapy program combined with exercise has shown meaningful improvements. One case series found that after eight weeks of manual physical therapy and exercise, internal rotation improved from about 19 degrees to 31 degrees, with gains maintained at the 29-week follow-up.⁸ The combination of hands-on joint mobilization with active exercise appears to be more effective than either alone for restoring hip rotation in the context of arthritis.

Strengthening the Internal Rotators and Stabilizers

Stretching tight external rotators is only half the equation. If the muscles responsible for internal rotation and for controlling pelvic position are weak, the hip will drift back into external rotation once you stop stretching. The gluteus medius and gluteus minimus have anterior fibers that contribute to internal rotation, and the tensor fasciae latae also assists. Strengthening these muscles helps counterbalance the pull of the deep external rotators.

Effective exercises include side-lying clamshells performed in reverse, where you keep your feet together and lower the top knee toward the floor to train internal rotation control. Banded hip internal rotation in a seated position, where you rotate your foot outward against resistance, targets the internal rotators directly. Standing single-leg balance work challenges the hip stabilizers in a functional position and addresses the neuromuscular control component, not just raw strength.

Core and pelvic floor engagement also plays a role. The deep external rotators work closely with the pelvic floor muscles, and chronic external rotation can be associated with an anteriorly tilted pelvis. Exercises that train posterior pelvic tilt under load, such as dead bugs and glute bridges with a posterior tilt focus, help reset the pelvic position that contributes to the outward-turned pattern.

How Sitting and Daily Habits Contribute

Your daily posture matters more than most people realize. Prolonged sitting has a direct relationship with piriformis tightness. A cross-sectional study of physiotherapy students found that sitting six or more hours daily nearly tripled the odds of piriformis tightness compared to those who sat less, with about two-thirds of participants showing tightness on clinical testing.⁹ Pain during sitting was reported by nearly half the group, and low back and gluteal pain were common.

Specific sitting positions accelerate the problem. Sitting with legs crossed, with one ankle propped on the opposite knee, or with knees splayed wide all hold the hip in external rotation for extended periods. Driving with the right foot angled outward on the pedal does the same thing, hour after hour. If you are trying to correct external rotation, you need to address these habits alongside your exercise program. Sitting with feet flat on the floor, knees roughly hip-width apart, and avoiding crossed-leg positions reduces the sustained external rotation load on the joint.

Standing habits matter too. People who habitually stand with feet turned out are reinforcing the pattern through their full-body weight-bearing posture. Making a conscious effort to stand with feet pointed roughly forward, or even slightly inward of your comfortable position, provides a low-grade corrective stimulus throughout the day.

Gait Retraining for Out-Toeing

Many people with externally rotated hips walk with their toes pointed outward, a pattern called out-toeing or increased toe-out angle. If the underlying cause is soft tissue, this gait pattern can be retrained. A randomized controlled trial of a four-month toe-out gait modification program showed that participants successfully changed their foot progression angle by about 9 degrees, and this change was partially retained one month after the program ended.¹⁰ That study used the change to reduce knee loading, but the gait retraining methods apply to anyone trying to correct their foot angle.

Various forms of feedback can help with retraining. Research comparing real-time biofeedback systems to simpler methods like mirrors or raw video found that while the high-tech approach produced slightly less error, the difference was only about 2 degrees, and perceived difficulty was similar across all methods.¹¹ A mirror or even video recording yourself walking is likely sufficient for most people to monitor and adjust their foot angle without needing a motion capture lab.

Gait retraining takes weeks of consistent practice before the new pattern starts to feel automatic. Starting with short walking bouts where you consciously point your feet straighter, then gradually extending the duration, is more sustainable than trying to correct everything at once. Walking on a treadmill in front of a mirror gives immediate visual feedback that accelerates the learning process.

In Children Versus Adults

External rotation of the hip looks very different depending on age. In children, out-toeing due to femoral retroversion is relatively common and frequently corrects on its own with growth. A long-term follow-up study of 270 children with in-toeing and 53 with out-toeing found that the majority were corrected conservatively over a 10-year period, with a statistically significant rate of successful correction in both groups.¹² Pediatricians and pediatric orthopedists generally take a watchful waiting approach for children whose rotational profiles fall within a range that is expected to remodel.

Adults do not have this luxury. Skeletal remodeling of femoral version essentially stops after skeletal maturity. If your externally rotated position is driven by bone structure, no amount of stretching, strengthening, or gait retraining will change the angle of the femoral neck. This is why adults with persistent external rotation that does not improve with conservative treatment should have their femoral version measured with imaging before assuming the problem is purely muscular.

Downstream Effects on the Knee and Ankle

An externally rotated hip does not just affect the hip. The entire lower limb rotates as a unit, and the knee and ankle compensate for the position above them. Research on knee osteoarthritis has found that patients with asymmetric hip rotation, particularly those with reduced internal rotation on one side, show significant differences in knee loading patterns, including changes in the knee adduction moment, which is a proxy for how much force is being driven through the inner compartment of the knee.¹³

The toe-out gait pattern that accompanies external hip rotation also has implications for the knee. A study of older adults with medial knee osteoarthritis found that greater toe-out angle was associated with reduced likelihood of disease progression over time, suggesting that some degree of toe-out may actually protect the medial knee compartment by redistributing load.¹⁴ This creates an interesting tension: correcting toe-out gait might improve hip function but could change knee loading in ways that matter if you already have knee arthritis. If you have both hip and knee issues, working with a clinician who considers the whole chain is important rather than blindly straightening your foot angle.

When the Problem Is Structural

Femoral retroversion that causes pain, limits function, or leads to impingement is a different clinical picture than soft-tissue tightness. Hips with absolute femoral retroversion, where the femoral neck actually points backward relative to neutral, have a much higher rate of a specific type of impingement called subspine impingement. One study found that 92% of hips with absolute retroversion had this extra-articular impingement, compared to none in the control group.¹⁵ The impingement area was also roughly double in hips with decreased combined version compared to those with normal version. This mechanical conflict between the femur and acetabulum can damage cartilage and labral tissue over time, making it more than a cosmetic or postural issue.

A systematic review examining the association between femoral retroversion, out-toeing gait, and hip osteoarthritis found that rotational femoral osteotomy, where surgeons intentionally cut and reposition the femur to correct the angle, can lead to pain relief and improved gait in patients whose retroversion is causing symptoms. This is particularly relevant when both the femur and acetabulum are retroverted, a combination that compounds the mechanical mismatch.¹⁶

Derotation osteotomy is a significant surgery reserved for patients who have failed conservative management and have imaging-confirmed version abnormalities. A study following patients for an average of about six and a half years after the procedure found that in the retroverted group, internal rotation improved from roughly negative 1 degree before surgery to 23 degrees afterward, while external rotation decreased from about 81 degrees to 42 degrees. Hip function scores improved by an average of 27 points on the modified Harris Hip Scale, a meaningful gain.¹⁷ The improvements were statistically significant and held up over the follow-up period.

Getting an Accurate Measurement

If you and your clinician decide that imaging is warranted, the gold standard has traditionally been CT, but lower-radiation alternatives are gaining ground. The EOS biplanar radiography system can measure femoral and tibial torsion with values nearly identical to CT. One head-to-head comparison found femoral torsion of 13.4 degrees by EOS versus 13.7 degrees by CT, with no statistically significant difference and strong agreement between the two methods.¹⁸ A systematic review and meta-analysis confirmed a high overall correlation between EOS and CT for hip and pelvic measurements.¹⁹

Three-dimensional reconstructions from biplanar radiography have also been validated against known measurements, with error margins comparable to those of CT.²⁰ The practical advantage is that EOS delivers substantially less radiation than CT, which matters if follow-up scans are needed to monitor changes or plan surgery. Not every imaging center has an EOS machine, but if one is available and you need version measured, it is a reasonable alternative to CT.

The Evolutionary Angle

Femoral version is not just a clinical curiosity. Research comparing human skeletal anatomy across populations and even across species suggests that the angle of the femoral neck relative to the shaft is a key feature of the human hip that evolved alongside our upright walking pattern. Work examining the relationship between femoral anteversion and the orientation of the pelvic bones has found that these two features are correlated, meaning femoral version may influence hip mechanics in ways that go beyond simply how far you can rotate your leg inward or outward.²¹ The normal range of femoral version in adults is wide, roughly 10 to 25 degrees of anteversion, and some degree of variation is just part of being human. The clinical threshold at which version becomes a “problem” is not a sharp line but depends on whether it causes pain, limits function, or leads to secondary damage like impingement or early arthritis.