Hip replacement and the different approaches

A hip replacement is a surgical procedure in which a damaged or worn-out hip joint is replaced with an artificial implant. It’s usually performed to relieve pain and restore movement in people with severe arthritis, hip fractures or other joint problems that have not improved with non-surgical treatments. The operation aims to help patients return to everyday activities with improved comfort and mobility.

What are the main surgical approaches to hip replacement?

Surgeons can access the hip joint in several ways. The choice of approach depends on factors such as the patient’s age, body type, activity level, underlying condition and the surgeon’s experience. The three most common approaches are:

Posterior approach – The most widely used method, involving an incision at the back of the hip. This allows excellent visibility of the joint and makes it easier to position the implant. It is associated with very reliable outcomes but carries a slightly higher risk of dislocation than other approaches.
Anterior approach – The incision is made at the front of the hip. This technique avoids cutting through major muscles, utilises a smaller incision and can allow for a quicker initial recovery However, it requires specialised equipment/implants and carries a slightly higher risk of intra-operative fracture than other approaches.
Lateral (anterolateral) approach – The incision is made on the side of the hip. This approach reduces the risk of dislocation and is often used for patients at higher risk of falls, though it may affect muscle strength

Are there less common or newer techniques?

Minimally invasive techniques are increasingly common, which involve smaller incisions and less disruption to the surrounding tissues. These can be applied to the anterior, lateral or posterior approaches. In selected cases, computer-assisted surgery or robotic technology may be used to improve accuracy in implant placement.

While these methods may offer certain advantages, they are not suitable for all patients and long-term outcomes are still being studied.

How does the choice of approach affect recovery?

The recovery process depends on the surgical approach, the patient’s health and how well they follow rehabilitation advice. In general:

The posterior approach has a slightly higher risk of dislocation but is well established with predictable recovery timelines.
The anterior approach can allow for faster early mobility but requires careful patient selection and a slightly higher early complication rate.
The lateral approach may cause muscle weakness which is usually temporary but offers good joint stability.

Regardless of the approach, most patients work with physiotherapists to regain strength, flexibility and walking ability in the weeks after surgery.

Which approach is best?

There is no single 'best' approach for every patient. The decision is made after considering the individual’s anatomy, lifestyle needs, medical history and the surgeon’s expertise. Some people may benefit from the tried-and-tested posterior method, while others may be better suited to an anterior or lateral approach.

When should someone discuss hip replacement options with a surgeon?

Anyone experiencing severe hip pain, stiffness or reduced mobility that affects daily life despite non-surgical treatments should speak with an orthopaedic hip specialist. An in-depth consultation allows for discussion of the different approaches, expected recovery and potential risks, helping patients make an informed decision about their surgery.