Achilles Tendon Rupture: Nonsurgical vs Surgical Rehab in BC

A ruptured Achilles announces itself. Patients often describe a sudden snap during a push off, a sprint start, or a jump landing, sometimes with a sound, and a sensation like being kicked in the back of the ankle. That is a different injury from the gradual, overuse-driven stiffness of Achilles tendinopathy, and it is treated on a different track from the first visit.

How a rupture is different from tendinopathy

Achilles tendinopathy builds slowly. Morning stiffness, soreness that loosens with movement, and pain that tracks with training load are the pattern, and we covered that condition and its loading-based treatment in our Achilles tendinopathy post. A rupture is the opposite: a single traumatic event, usually during an explosive push off or a sudden stretch of a tendon that was not warmed up, and the person typically cannot stand on their toes or push off the injured leg afterward.

The two conditions do share a location and, in some cases, a risk factor. A tendon that has been quietly weakened by tendinopathy or by prior treatment such as certain antibiotics can be more vulnerable to rupture. But the injury mechanism, the diagnosis, and the early management are separate problems, and this article covers rupture only.

How a rupture is diagnosed

A physical exam is usually enough to diagnose a complete Achilles rupture, without needing imaging first. The most useful bedside test is the Thompson test, sometimes called the calf squeeze test, where the patient lies face down with the foot hanging off the end of the table and the examiner squeezes the calf. In an intact tendon, the ankle plantar flexes, that is, the foot points down. In a complete rupture, it does not. A systematic review cited in the emergency medicine literature found the Thompson test carries a pooled sensitivity of 96 percent and specificity of 93 percent for a complete Achilles tendon rupture, making it one of the more reliable tests used in an urgent care or emergency setting (JETem: Thompson Test in Achilles Tendon Rupture).

Examiners often combine the Thompson test with feeling for a gap in the tendon and checking for reduced resting ankle position (the Matles test), since no single test catches every case. A partial tear or a rupture with the plantaris tendon still intact can produce weak plantar flexion despite the injury being real, which is why a clinician who suspects a rupture but gets an unclear result will often still refer for imaging or a specialist opinion. Diagnosis and the decision to image happen with a physician, not in a physiotherapy clinic. Launch Rehab does not diagnose acute ruptures. If you suspect one, same-day medical assessment is the right first step, not a physiotherapy booking.

Surgical repair versus nonsurgical functional rehab

Once a rupture is confirmed, the choice sits between an orthopedic surgeon and the patient, weighing surgical repair against nonsurgical management with a functional brace. Both are legitimate options, and the evidence on how they compare has shifted meaningfully over the past 15 years as nonsurgical protocols moved away from long periods of casting toward early functional bracing and movement.

The largest and most recent randomized trial, published in the New England Journal of Medicine in 2022, enrolled 554 patients across nonoperative treatment, open surgical repair, and minimally invasive surgical repair. All three groups used an accelerated functional rehabilitation protocol with early weight bearing. At 12 months, patient-reported outcomes on a validated Achilles tendon rupture score did not differ meaningfully between the three groups, but rerupture was more common in the nonoperative group (6.2 percent) than in either surgical group (0.6 percent each) (Myhrvold et al., New England Journal of Medicine, 2022).

An earlier meta-analysis of ten studies found the same pattern holds only when nonsurgical patients also get early functional rehabilitation rather than prolonged immobilization. When both groups used early range-of-motion protocols, rerupture rates were statistically equal between surgery and nonsurgical management. Without early motion in the nonsurgical group, surgery reduced rerupture risk by 8.8 percent. The same analysis found surgery carried a 15.8 percent higher absolute risk of other complications, mainly wound infection and nerve irritation, and that surgically treated patients returned to work about 19 days sooner (Soroceanu et al., Journal of Bone and Joint Surgery, 2012).

Put plainly: modern functional rehab has narrowed the rerupture gap that used to favour surgery outright, but has not closed it in every trial, and surgery trades a small rerupture advantage for a real chance of surgical complications and a slower initial return to work. That tradeoff, along with age, activity level, tendon gap size, and general health, is what the orthopedic surgeon and patient weigh together. A physiotherapist's role starts once that decision is made, not before it.

What physiotherapy looks like after nonsurgical management

Nonsurgical rehab today rarely means a rigid cast for months. Current functional protocols use a hinged walking boot or brace set to protect the tendon in a shortened position early on, with the heel wedged up, then gradually adjusted toward a neutral ankle position over several weeks as the tendon heals. Weight bearing is typically introduced early and progressed under the surgeon's or physiotherapist's guidance rather than delayed until the boot comes off entirely, which is the accelerated approach used in the major trials described above.

Physiotherapy involvement in this phase focuses on safe progression: confirming the brace is being worn and adjusted correctly, monitoring for signs the tendon is not tolerating the current stage, and starting gentle range-of-motion and light strengthening work once the surgeon or the protocol allows it. Because there is no surgical fixation holding the tendon ends together, the pace of loading in nonsurgical rehab is generally more conservative early on, and adherence to the brace protocol matters more than in a surgically repaired tendon.

What physiotherapy looks like after surgical repair

After surgical repair, the tendon ends are fixed together, which generally allows a more assertive early rehab timeline than nonsurgical management, though it still depends on the surgeon's protocol and how the repair looked in the operating room. Early stages focus on protected weight bearing in a boot, gentle ankle range of motion within the limits the surgical team sets, and wound and scar management.

As healing progresses, physiotherapy shifts to restoring calf strength and ankle range of motion that surgery and the period of protection tend to reduce. This looks similar in structure to the progressive loading used for Achilles tendinopathy, moving from isometric holds to heel raises to slow, loaded heel drops, but the timeline is set by tendon healing after a traumatic tear and a repair, not by an overuse pattern, so it follows the surgeon's stated protocol rather than a symptom-led pace. Surgical scar tissue and any nerve irritation near the incision also get specific attention that a nonsurgical rehab plan does not need.

Return to sport is criteria based, not calendar based

Whichever path a patient takes, returning to running, cutting, or jumping sport is judged against measurable criteria rather than a fixed number of weeks. Typical benchmarks physiotherapists check include symmetrical calf strength and single-leg heel raise endurance compared with the uninjured side, full pain-free ankle range of motion, and the ability to tolerate hopping and landing tasks without compensation. We use a similar criteria-based approach for other major tendon and ligament rehab, including the staged return-to-sport testing described in our ACL reconstruction rehab timeline post.

Recovery timelines depend on which path was chosen, how the tendon and any repair are healing, age, baseline fitness, the demands of the sport someone wants to return to, and how consistently the rehab plan is followed. There is no single week count that applies to every rupture, whether it was repaired surgically or managed with a functional brace, and a physiotherapist tracking your specific milestones is a more useful guide than a generic timeline. Our general note on how long physiotherapy takes covers the same idea for other injuries: the plan is set from what is found at assessment, not from a script.

What to do if you suspect a rupture

A sudden snap, a sensation of being struck in the back of the ankle, or a sudden inability to push off the foot needs same-day medical assessment, not a physiotherapy booking. An emergency department, urgent care clinic, or your family physician can perform the Thompson test and arrange the orthopedic referral that decides between surgical and nonsurgical management. Once that decision has been made and the acute period has passed, physiotherapy is where the rebuilding happens, whichever path was chosen. If you are recovering from either a repaired or a nonsurgically managed Achilles rupture and are not sure your rehab is progressing appropriately, book a physiotherapy assessment and we will build the plan around the stage you are actually at.

This article is general information, not personal medical advice. A regulated practitioner can confirm whether the patterns described apply to you.

Frequently asked questions

Is an Achilles rupture the same thing as Achilles tendinopathy?

No. Tendinopathy is a gradual, overuse-related loss of tendon capacity that builds over weeks with morning stiffness and activity soreness. A rupture is a sudden, complete or near-complete tear, usually during an explosive movement, and needs same-day medical assessment rather than a loading program.

Do all Achilles ruptures need surgery?

No. Both surgical repair and nonsurgical functional bracing are legitimate options, and current evidence with early functional rehabilitation shows similar patient-reported outcomes between the two at 12 months. The choice depends on rerupture risk tolerance, surgical complication risk, activity demands, and general health, and is made with an orthopedic surgeon.

Does surgery lower the risk of the tendon rupturing again?

It can, though the size of that advantage depends on the rehab protocol used. A 2022 randomized trial found rerupture in 6.2 percent of nonoperative patients versus 0.6 percent in each surgical group. An earlier meta-analysis found the rerupture gap closes when the nonsurgical group also uses early functional rehabilitation rather than prolonged casting.

What does the Thompson test tell a doctor?

It checks whether squeezing the calf still causes the ankle to point down. If it does not, that points to a complete Achilles tendon rupture. Pooled data puts its sensitivity at 96 percent and specificity at 93 percent, though a partial tear or an intact plantaris tendon can sometimes still produce some plantar flexion.

Can a physiotherapist diagnose an Achilles rupture?

Physiotherapists can recognize the pattern and will refer urgently, but Launch Rehab does not diagnose or manage acute ruptures on-site. Diagnosis and the surgical-versus-nonsurgical decision happen with a physician and an orthopedic surgeon. Physiotherapy's role begins with rehab once that decision is made.

Is rehab different after surgery compared with nonsurgical treatment?

The overall goals, rebuilding calf strength, restoring ankle range of motion, and meeting return-to-sport criteria, are the same. The pacing differs because a surgically repaired tendon is held together by the repair itself, which often allows a more assertive early loading timeline than a nonsurgically managed tendon healing inside a brace. Both should follow the surgeon's or protocol's specific staging.

How long until I can run or play sport again after an Achilles rupture?

There is no fixed week count that applies to everyone. Return to running or cutting sport is judged against measurable criteria such as symmetrical calf strength, single-leg heel raise endurance, and tolerance for hopping and landing, not a calendar date. Your surgeon and physiotherapist will set expectations based on how your specific tendon and rehab are progressing.

What happens if I ignore a suspected rupture and keep walking on it?

That is a decision for medical assessment, not something to self-manage. Delaying diagnosis can complicate the surgical-versus-nonsurgical decision and affect how the tendon ends are positioned for healing. Same-day assessment is the appropriate response to a suspected rupture.

Sources

• Nonoperative or Surgical Treatment of Acute Achilles' Tendon Rupture, New England Journal of Medicine (2022)
• Surgical versus nonsurgical treatment of acute Achilles tendon rupture: a meta-analysis of randomized trials, Journal of Bone and Joint Surgery (2012)
• Thompson Test in Achilles Tendon Rupture, JETem: Journal of Education and Teaching in Emergency Medicine