Being told you need surgery for hip impingement is not the end of the conversation. For most people it is the beginning of one that should have happened much earlier. Here's what hip impingement actually is, what's driving it, and what needs to change before surgery becomes the only option.
You've been told you have femoroacetabular impingement. Maybe a scan confirmed it. Maybe there's a cam lesion, a pincer deformity, or both. You've been given a cortisone injection, told to avoid the aggravating movements, referred to a physio for hip strengthening, and at some point the conversation has turned to surgical intervention.
If that's where you are, it's worth slowing down.
Hip impingement is real. The structural features that contribute to it are real. But the structural features and the pain are not the same thing, the surgical solution addresses only part of what's driving the problem, and for many people the movement pattern producing the impingement has never been properly assessed or addressed.
That assessment is what is missing. And in many cases it is what changes the outcome.
What hip impingement actually is
Femoroacetabular impingement, FAI, occurs when the femoral head makes contact with the rim of the acetabulum during hip movement. This contact produces friction, compresses the labrum, and over time can cause labral damage and cartilage wear. The result is pain, often felt in the groin or deep anterior hip, that is reproduced with hip flexion and internal rotation and that limits activities ranging from squatting to sitting for extended periods.
There are two structural contributors to FAI. A cam deformity is an abnormality at the femoral head-neck junction that reduces the clearance between the femur and the acetabulum during hip flexion. A pincer deformity is an overcoverage of the acetabulum that similarly reduces the clearance available for hip movement. Many people with FAI have a combination of both.
These structural features are present on imaging and they are genuinely relevant. But here is what is consistently underemphasised in the standard clinical conversation about FAI: structural features and symptoms are not the same thing.
Research on asymptomatic populations consistently finds cam and pincer deformities in people with no hip pain at all. A cam lesion on an MRI does not automatically explain hip pain. It explains reduced clearance at the hip joint during certain movements. Whether that reduced clearance is producing symptoms in a specific individual depends almost entirely on how that individual is loading the hip in daily movement.
Why movement pattern determines whether structural features produce symptoms
The hip joint has a specific range of available motion. In a structurally normal hip that range is generous. In a hip with cam or pincer features that range is more restricted, specifically in the directions where the bony prominence or overcoverage creates early contact.
Whether the available range is sufficient for that individual's daily movement demands depends on how the hip is being loaded. If the hip is consistently being moved into the positions where the structural features reduce clearance, impingement occurs, pain is generated, and the labrum and cartilage are progressively loaded in ways they weren't designed to handle.
If the hip is loaded through its available range without being driven into the impingement zone, the structural features are present but the pain is not. This is why people with identical structural findings on imaging can have dramatically different symptom experiences.
The movement pattern is the variable that determines the outcome. And the movement pattern is the thing almost never properly assessed in standard FAI management.
What's driving the hip into impingement
Gait mechanics and hip loading position
The single most important driver of symptomatic FAI that is consistently missed in standard assessment is how the hip is loading during gait. When hip extension is restricted in the push-off phase of walking, the body compensates by rotating the pelvis and the femur in ways that bring the femoral head closer to the acetabular rim with every stride.
This compensation is invisible in a static assessment of the hip. It is clearly visible in a gait assessment. And it is producing impingement contact across ten thousand daily steps in a person who has been told to avoid squatting as though that is the primary aggravating activity.
The squat is not the primary aggravating activity for most people with FAI. Walking is, because walking is what most people do most. And the gait mechanics that are loading the hip into impingement have almost never been assessed.
Anterior pelvic tilt
An anteriorly tilted pelvis changes the orientation of the acetabulum relative to the femoral head. It reduces the available clearance in the anterior hip and makes impingement contact more likely at lower ranges of hip flexion than would occur in a neutrally aligned pelvis.
This means that the pain someone experiences when sitting, bending forward, or squatting is in part a function of their pelvic position, which is in turn a function of their movement pattern. Correcting anterior pelvic tilt through gait retraining and posture correction changes the orientation of the acetabulum and can meaningfully increase the functional clearance available before impingement contact occurs.
This is something surgery cannot replicate. Surgery modifies the structural geometry. Correcting the pelvic position changes the functional relationship between the existing structures, which in many cases is sufficient to reduce or eliminate symptoms without altering the structures themselves.
Training positions that drive the hip into impingement
For people who train, the movement positions that consistently aggravate FAI are those that combine deep hip flexion with internal rotation. This is the impingement zone. Standard squat instruction, which assumes a generic hip geometry and neutral pelvic alignment, often drives the hip directly into this zone.
The corrective approach is not to stop squatting. It is to identify the hip geometry of that individual and select the loading positions that allow the hip to work through its available range without entering the impingement zone. Stance width, depth, and foot position all influence where the hip loads relative to its structural limits. Getting these right for the specific hip geometry is something that requires assessment, not generic instruction.
At FP Brisbane we assess the specific structural geometry of the hip alongside the movement pattern and select loading positions accordingly. The goal is to load the hip effectively in the positions it can actually manage rather than in the positions a generic program assumes everyone can use.
What surgery does and doesn't address
Hip arthroscopy for FAI typically involves reshaping the femoral head or acetabular rim to increase the available clearance, combined with repair of any labral damage. When the structural contribution to impingement is significant and conservative management has genuinely failed, this can produce meaningful improvement.
But arthroscopy does not change the movement pattern that was loading the hip into impingement before the surgery. The post-surgical hip has more structural clearance. If the same gait mechanics, the same pelvic alignment, and the same loading positions are resumed after surgical recovery, the hip is being loaded in the same directions as before, just with a slightly larger margin before contact occurs.
Post-surgical outcomes for FAI are variable partly for this reason. The structural problem is addressed. The movement problem that was driving the structural loading is not. At FP Brisbane we see post-surgical FAI presentations regularly, people whose pain has not resolved or has recurred after arthroscopy because the movement pattern was never corrected.
The surgery-first conversation skips the movement assessment. That assessment should come first, not as an alternative to surgery in all cases, but as the step that determines whether surgery is genuinely necessary or whether the movement pattern, corrected, is sufficient to resolve the symptoms.
What actually helps before surgery is considered
A properly conducted movement assessment that covers gait mechanics, pelvic alignment, hip loading positions in training, and the relationship between the structural geometry of the hip and the movement patterns being applied to it is the starting point.
From that assessment, a corrective program that addresses the gait pattern driving the impingement loading, corrects the pelvic alignment changing the acetabular orientation, and identifies the loading positions that allow the hip to work effectively within its available range can produce significant symptom reduction in a meaningful proportion of FAI presentations.
This is not a guarantee. Some structural presentations are significant enough that mechanical correction alone cannot provide sufficient relief and surgical intervention is appropriate. But this determination should be made after the movement pattern has been properly assessed and addressed, not before. In many cases the movement assessment has never happened, the patient has been managed with activity modification and injection, and surgery is being discussed because the symptoms haven't resolved, not because mechanical management has genuinely failed.
Client result: "I was told my FAI would likely need surgery within two years. I decided to try addressing the movement pattern first. At FP Brisbane the gait assessment found a significant hip extension restriction on the affected side and an anterior pelvic tilt that was reducing the clearance further with every step. Eight months of corrective work later my symptoms have reduced by around eighty percent and I've returned to full training. The surgical conversation has been put on hold indefinitely." Brisbane client
What this looks like at Functional Patterns Brisbane
At FP Brisbane, FAI presentations receive a full gait and movement assessment before any loading modification or corrective program is designed. We assess how the hip is being loaded through gait, what the pelvic alignment is doing to the acetabular orientation, and what training positions are driving the hip into its impingement zone.
From that assessment we build a corrective framework that addresses the gait mechanics, the pelvic alignment, and the loading positions simultaneously. The structural features of the hip are not going to change. The way the hip is loaded through those structural features is something that can change significantly.
If you have been diagnosed with FAI and surgery has been suggested, it is worth finding out whether the movement pattern has been properly assessed first.
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Frequently Asked Questions — Hip Impingement Without Surgery
Can hip impingement be treated without surgery?
For many people yes. The structural features that contribute to FAI, cam and pincer deformities, are present in asymptomatic people as well as symptomatic ones. Whether those features produce symptoms depends largely on how the hip is being loaded in daily movement. Correcting the gait mechanics and pelvic alignment that are driving the hip into its impingement zone, and selecting loading positions that work within the hip's available range, produces significant symptom reduction in a meaningful proportion of FAI presentations without surgical intervention.
Why does my hip impingement pain come on when I sit for long periods?
Prolonged sitting places the hip in flexion and often in a degree of internal rotation, which is the position most likely to produce impingement contact in a structurally predisposed hip. Anterior pelvic tilt, which is common in people who sit for long periods, reduces the available clearance further. Addressing the pelvic alignment and the seating mechanics that are maintaining the hip in its impingement zone can significantly reduce sitting-related pain.
Will surgery fix hip impingement permanently?
Hip arthroscopy addresses the structural contribution to impingement by increasing the available clearance at the joint. It does not address the movement pattern that was loading the hip into impingement before surgery. If the same gait mechanics and loading positions are resumed after surgical recovery, the hip is being loaded in the same directions as before with a slightly larger structural margin. Post-surgical outcomes are variable partly for this reason. Correcting the movement pattern alongside or before surgical intervention produces more durable outcomes.
What movements make hip impingement worse?
The positions most likely to produce impingement contact are those that combine hip flexion with internal rotation, including deep squatting, sitting with legs crossed, and activities that require both hip flexion and rotation simultaneously. However, gait is often the primary aggravating pattern in terms of total load because it produces these forces across ten thousand daily repetitions. Modifying training positions is important but correcting gait mechanics is often what produces the most significant overall symptom reduction.