If you’re preparing for a total hip replacement, you may have heard your surgeon talk about an anterior, lateral, or posterior approach.
You may also have heard that one approach is better than another.
From a physiotherapist's perspective, it’s a little more complicated than that.
Each surgical approach involves accessing the hip joint from a different direction, and each can affect the muscles and tissues around the hip differently. However, your overall recovery depends on much more than the approach alone.
In this blog, I’ll explain the basic differences between the three approaches and what they may mean for your rehabilitation.
What Is a Surgical Approach?
The surgical approach refers to the direction your surgeon uses to access the hip joint during surgery.
The three approaches you will hear about most often are:
Anterior
Lateral
Posterior
All three approaches can be used to perform a successful total hip replacement.
The main difference is which tissues and muscles the surgeon works through or around to reach the hip joint.
Anterior Hip Replacement
With an anterior approach, the surgeon accesses the hip from the front.
One of the potential benefits is that the approach can avoid cutting some of the larger muscles around the hip. However, that doesn't mean there is no muscle or soft tissue trauma, and you can still experience weakness, pain, swelling, and difficulty walking after surgery.
From a physiotherapy perspective, we still need to work on the same big-picture goals:
Walking
Strength
Mobility
Balance
Muscle activation
Returning to normal activities
Some people feel they progress quickly after an anterior hip replacement, but everyone's recovery is different.
Anterior does not mean "easy recovery."
Lateral Hip Replacement
With a lateral approach, the surgeon accesses the hip from the side.
Depending on the specific surgical technique, some of the muscles on the outside of the hip can be affected.
This can sometimes contribute to weakness around the hip, particularly with movements that require the gluteal muscles to stabilize the pelvis.
You may notice things such as:
Difficulty walking without a limp
Weakness when climbing stairs
Difficulty standing on one leg
Reduced hip strength
This is where physiotherapy can be particularly important.
We want to gradually rebuild the strength and control of the muscles around the hip rather than simply waiting for them to recover on their own.
Posterior Hip Replacement
With a posterior approach, the surgeon accesses the hip from the back.
Some of the muscles and tissues at the back of the hip can be affected during the surgery.
Historically, patients were often given strict "hip precautions" following a posterior approach, such as avoiding certain combinations of hip movements.
However, precautions vary depending on the surgeon, surgical technique, and individual patient.
This is important: don't assume that everyone with a posterior hip replacement has the same restrictions.
Your surgeon and healthcare team should provide you with your specific instructions.
What Precautions Might You Have After Surgery?
You may be given different movement precautions depending on which surgical approach you have.
It's important to remember that precautions are not the same for everyone. Your surgeon's instructions should always take priority, as recommendations can vary depending on the surgical technique and your individual circumstances.
Anterior Approach
With an anterior approach, there may be fewer traditional movement restrictions, but you may still be advised to avoid excessive hip extension or turning your leg outward during the early stages of recovery.
For example, you may be asked to avoid:
Taking your leg too far behind you
Excessive outward rotation of the hip
Large or extreme movements of the hip
Lateral Approach
Following a lateral approach, precautions may focus more on protecting the muscles on the outside of the hip.
You may be advised to avoid:
Crossing your legs
Excessive sideways movement of the leg
Sleeping on the operated side initially
Certain positions that place excessive stress on the healing tissues
Your physiotherapist can help you understand which movements are appropriate as your strength and healing progress.
Posterior Approach
With a posterior approach, traditional precautions have often focused on avoiding positions that combine bending the hip deeply with bringing the leg across your body or rotating the hip inward.
You may be advised to avoid:
Crossing your legs
Bending the hip beyond 90 degrees
Bringing your knee too far toward your chest
Turning your leg inward, particularly when the hip is bent
Low chairs or deep squatting early in recovery
However, not everyone with a posterior hip replacement will have these exact restrictions. Many surgeons now use different precaution protocols depending on the patient and surgical technique.
The Important Part
Don't be afraid to move.
Precautions are designed to protect the healing hip during the early stages of recovery, not to prevent you from using your hip.
Your restrictions will generally become less important as your tissues heal, your strength improves, and you regain control of your hip.
Your surgeon and physiotherapist can help you understand what you can safely do now and when you can start doing more.
If you're unsure whether a particular movement is safe, ask your healthcare team rather than simply avoiding the movement indefinitely.
So, Which Approach Is Best?
This is probably the question I hear most often.
The honest answer is: there isn't one approach that is automatically best for everyone.
Research comparing the different approaches has found some differences in the early stages of recovery, but many of these differences become much smaller as recovery progresses.
Your surgeon will consider factors such as your anatomy, medical history, previous surgeries, the condition of your hip, and their surgical experience when deciding which approach is appropriate.
And from a physiotherapy perspective, I care about more than the incision.
I want to know:
How strong are you?
How are you walking?
How well can you control your hip?
What activities do you want to get back to?
Those things will ultimately guide your rehabilitation.
Does the Approach Change Physiotherapy?
It can.
Your physiotherapist should understand which surgical approach you have had because it can influence which muscles and tissues have been affected and whether there are any specific precautions to follow.
But the overall rehabilitation process has a lot in common.
Early on, we focus on:
Managing pain and swelling
Getting you walking safely
Restoring basic mobility
Activating the muscles around the hip
Regaining independence
As you progress, the focus shifts toward:
Progressive strengthening
Glute strength
Balance
Walking mechanics
Stairs
Endurance
Returning to exercise and recreational activities
Your exercises should progress based on how you are recovering, not simply which surgical approach you had.
Don't Get Too Caught Up in the Approach
It's easy to spend a lot of time researching which approach is "best" before surgery.
I understand why.
You want to know what your recovery will look like and how quickly you'll get back to normal.
But try not to let the surgical approach become the only thing you focus on.
Two people can have the same surgical approach and have completely different recoveries.
Your age, strength before surgery, overall health, pain, activity level, surgical technique, rehabilitation, and individual goals can all influence your recovery.
The approach is one piece of the puzzle.
Final Thoughts
Anterior, lateral, and posterior hip replacements are different ways of accessing the same hip joint.
Each approach has its own considerations, but all can result in excellent outcomes.
From my perspective as a physiotherapist, the most important thing is what happens after surgery.
Your goal isn't simply to have a successful hip replacement.
It's to recover your strength, confidence, mobility, and ability to do the things that matter to you.
Don't worry if someone else with the same surgical approach seems to be recovering faster than you.
Your recovery is your own.
Focus on gradually building your strength and capacity, and give your body the time it needs to recover.
If you're preparing for a hip replacement and want some guidance on how to prepare beforehand or what to do after surgery, send me an email or reach out. I'd be happy to help you through your recovery.
Liam
Disclaimer
This content is for educational purposes only and does not replace medical advice. Every hip replacement and recovery is different. Surgical approaches, precautions, and rehabilitation recommendations can vary. Always follow the specific instructions provided by your surgeon and healthcare team.
