Hip Replacement Approaches Explained: Anterior vs Posterior Surgery
Written by Dr. Scott Allen
In 2007 The Lancet journal declared total hip replacement the operation of the century. Widely considered one of the most successful procedures in modern medicine, more than 450,000 total hip replacements are performed in the United States every year. If you are considering hip arthroplasty, you may have heard about different approaches for the surgery. The two most common approaches are the anterior and posterior. Patients often ask which is best, but the answer is not that straightforward.
Understanding Surgical Approaches
Interested in learning more? Listen to Dr. Scott Allen and Dr. Jesse Botker explain an anterior and posterior hip replacement in this video, followed by an anterior hip replacement performed by Dr. Botker.
The term “approach” refers to the pathway a surgeon uses to access the hip joint during replacement surgery. How do we safely make an incision on the skin and dissect through important anatomy to reach the hip joint? Regardless of the approach, the goal is the same: remove the damaged hip joint and replace it with artificial components that restore function and relieve pain.
The Anterior Approach
During an anterior hip replacement, the patient is placed on a special table on their back. We make an incision on the front of the hip, near the groin. The main advantage of this approach is that it utilizes an interval between muscles rather than detaching major muscles from the bone.
Potential Advantages:
Less muscle disruption during surgery
Potentially faster early recovery (first 2-6 weeks)
Less hip precautions after surgery
Possibly lower risk of posterior dislocation
Potential Disadvantages:
More technically demanding procedure
Increased risk of numbness on the outer thigh
Higher risk of wound healing issues
Specialized equipment required
Not all patients are good candidates, especially patients with very muscular legs, higher BMI, or a large belly
The Posterior Approach
During the posterior approach, the patient is placed on their side, and we make an incision on the side of their buttocks. The posterior approach has been used successfully for decades and remains one of the most common approaches worldwide.
Potential Advantages:
Excellent visualization of the hip joint
Essentially every patient is a candidate for a posterior approach
No specialized equipment necessary
Technically less demanding surgery
Potential Disadvantages:
Requires release and repair of some deep hip muscles
Traditionally associated with a slightly higher risk of dislocation, although modern techniques have significantly reduced this risk
More strict hip precautions with bending, twisting and crossing your legs after surgery
What does the research show?
Studies comparing anterior and posterior hip replacement have found that patients undergoing the anterior approach may experience slightly faster recovery during the first few weeks after surgery. By 3-6 months after surgery, outcomes including pain relief, function, implant longevity, and patient satisfaction are generally very similar between the two approaches.
In other words, the early recovery experience may differ, but long-term results are often comparable.
Which Approach Is Right for You?
The best approach depends on several factors, including:
Your anatomy
Previous surgeries
Bone quality
Body habitus
Activity level
Your surgeon’s training and experience
Many orthopedic surgeons achieve excellent results using a single approach that they have performed many times. For this reason, the surgeon’s experience with a specific technique is often more important than whether the incision is located on the front or back of the hip.
The Bottom Line
Both anterior and posterior total hip replacement are proven, effective procedures that can dramatically improve quality of life. While the anterior approach may offer some advantages during the early recovery period, long-term outcomes are generally excellent with either technique.
When considering hip replacement surgery, focus less on finding the “best” approach and more on finding a board-certified and experienced surgeon who can recommend the approach that best fits your individual situation.
want to learn more?
Be sure to watch this video discussion between Dr. Scott Allen and Dr. Jesse Botker on the difference between these two approaches. In addition to covering the differences between anterior and posterior hip replacement, the video concludes with footage of Dr. Botker performing an anterior hip replacement procedure, offering a unique look inside the operating room.
Dr. Scott Allen
Orthopaedic Surgeon
MD, FAAOS
Dr. Allen is a board-certified orthopedic surgeon specializing in the surgical and nonsurgical treatment of bone, joint, and muscle conditions, with a focus on fractures, sports medicine, and joint replacement including direct anterior total hip arthroplasty.
He is committed to providing personalized, patient-centered care by listening to each patient’s goals and collaborating to develop individualized treatment plans that restore function and support an active lifestyle.
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