DePuy Synthes launch the ACTIS Total Hip

March 2018

Brand new hip system revolutionises all types of hip replacement surgery

Across England and Wales, around 160,000 hip and knee replacements are performed each year. This type of surgery is common in adults aged between sixty and eighty, with diseases such as osteoarthritis and rheumatoid arthritis the leading causes. Adults of all ages will be considered for hip replacement surgery, where damaged bone is replaced with a prosthesis, but currently recovery is lengthy and demanding, so it’s important that medical equipment companies are always researching ways of improving treatment options for patients.

Since the first procedure was performed in the 1960s methods and equipment have developed hugely, leading to an ever-improving recovery landscape for patients of all ages. Industry leaders DePuy Synthes’ innovative new ACTIS Total Hip system is intended for use in ‘soft tissue-sparing’ surgery like the anterior approach, where an artificial joint is inserted through the front of the hip without cutting through muscles or nerves.

DePuy Synthes is part of Johnson & Johnson Medical Devices Companies, and this is their first offering for use in the anterior approach. So far approximately 11,000 patients have benefited from the ACTIS Total Hip system, with the rollout continuing throughout 2018. It was introduced on 7th March 2018 at the 2018 American Academy of Orthopaedic Surgeons (AAOS) Annual Meeting in New Orleans, LA.

The design features POROCOAT porous coating that allows for easier biological fixation to the bone. The stem is available in twelve sizes to properly fit within the femur across a range of patient anatomies, and a lateral shoulder that’s reduced in size to help avoid the obturator externus (OE) and other rotator muscles that aid in free movement of the hip joint. In the design rationale, the company state: “The implant and instrumentation are designed to balance ease of insertion and may provide improved implant stability.”

Traditionally, total hip replacements were carried out through the posterior or lateral approach, but even in ‘minimally invasive’ procedures the muscle and nerves are subject to significant cutting and sectioning, which can lead to impaired joint stability during recovery and ultimately even hip dislocation. In studies carried out by the Hip Society, it was found that hip replacements carried out using the anterior approach had just a 1% dislocation rate, as opposed to up to 4% across posterior and anterolateral approaches. DePuy Synthes aim to provide value, improved outcomes and patient satisfaction to surgery centres across the world, and this reduction in dislocation leads to a reduction in hospital readmissions, and a faster recovery rate for patients.

So how does it really perform? Dr. Atul F. Kamath, Department of Orthopaedic Surgery, University of Pennsylvania, says: “I now have a single system for most patients’ bone types, shapes and anatomic considerations. I have been impressed with the early clinical results, stem fixation on x-rays and patient satisfaction.” This is an exciting development for the medical world that will hopefully see a heightened patient recovery response going forward.

 

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