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Centre for Orthopaedics
Suite 10-33/34/35 Mount Elizabeth Novena Specialist Centre
38 Irrawaddy Road
Singapore, 329563, Singapore
Ph: (65) 6684 5828
Fax: (65) 6684 5829

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I am reading conflicting reports about how to treat an Achilles tendon rupture. Even on your website there are some studies that say surgery is better and others that recommend a nonsurgical treatment plan. What's the overall big picture view?

You are correct that there are some conflicting results published in the medical literature about the treatment of Achilles tendon ruptures. Some of the differences depend on the type of treatment applied. Not all surgical treatment and not all nonsurgical care are the same. For example, surgical repair can be done with an open incision, with a minimally invasive approach (very small incision), or percutaneously (through the skin). Results can vary just based on those differences. Likewise, not all conservative care is the same. In some centers, an approach known as functional rehabilitation is offered, whereas other centers continue to use the traditional method of cast immobilization for six weeks. Here's a little more about this concept of functional rehab. Instead of putting the lower leg in a cast for six weeks a brace is used. The cast would hold the ankle in a slight amount of plantar flexion (toes pointed down) with no movement allowed. The brace could be removed so the patient could actively plantar flex the ankle every day from day 10 on. The idea is to use early range-of-motion to stimulate tendon healing without putting any stress on the tear. For a long time now, studies have repeatedly shown that surgery is the better way to treat Achilles tendon ruptures. Patients got better faster and returned to work and play sooner. And there were fewer cases of tendon rerupture after surgery compared with conservative care. But surgery always comes with some risks of its own. So there have been continued efforts to compare different types of conservative care against surgical repair. That's where functional rehab comes into play. In a recent meta-analysis, the authors combined the results of 10 studies that compared results after functional rehab versus surgery. The authors looked at rerupture rate as the main measure. But other factors evaluated included the rate of other complications (e.g., infection, skin breakdown, tendon necrosis, blood clots, nerve damage, scarring), return to work, calf circumference (size), muscle strength, and function. The first important finding was the risk of complications other than rerupture with surgery: 15.8 per cent higher with surgery compared with functional rehab. However, on the plus side for surgery, patients went back to work almost three weeks sooner after surgery compared with functional rehab. All other factors (ankle motion, function, and calf size) were the same regardless of treatment. So what's the answer then? Should patients have surgery right away for an Achilles tendon rupture? Or should they go with functional rehab if it's available? There may not be a one-size-fits all kind of reply. Consider these facts: the rerupture rate is the same between surgery and functional rehab. However, the risk of other complications is higher whenever surgery is done. The risk of rerupture is higher after prolonged immobilization (traditional conservative care) compared with surgery. If all other factors are equal, functional rehab should be considered first. If functional rehab is not available, then surgery should be the top option but keeping in mind the risk of other complications. Those "other" complications could be something as minor as a skin rash or infection but could be as serious as a life-threatening blood clot to the lungs. There is no way to predict who will have a post-operative problem and whether it will be minor or major. In terms of motion, function, and return to full activities, patients in both groups are equally successful. But there is a less than three per cent chance of rerupture after surgery compared with 10 to 12 per cent following nonsurgical treatment. Each patient must discuss with the surgeon the potential benefits, problems, and trade-offs with each type of treatment available.


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