An Achilles tendon rupture can affect both elite athletes and recreational sports enthusiasts. Once the diagnosis has been established, one important question arises: is surgery necessary, or can the tendon heal successfully with immobilisation alone?
For many years, surgery was considered the standard treatment. Today, management strategies have evolved considerably. This article outlines the advantages and limitations of both approaches to help you understand which option may be most appropriate for your individual situation.
Understanding an Achilles tendon rupture
The Achilles tendon is the largest and strongest tendon in the human body. It connects the calf muscles to the heel bone (calcaneus) and plays an essential role in walking, running and jumping.
When the tendon ruptures, patients frequently describe hearing or feeling a sudden “snap”, similar to being struck on the back of the ankle, followed by immediate weakness and an inability to stand on tiptoe.
The two treatment options
Surgical treatment
The torn ends of the tendon are repaired using sutures to restore tendon continuity and tension.
Non-operative treatment
The tendon is allowed to heal naturally while the ankle is immobilised in an equinus position, with the foot pointed downwards, usually using a walking boot with heel wedges.
Why choose surgery?
Who is surgery recommended for?
Surgical repair remains the preferred option for physically active patients and athletes wishing to return to high-demand sporting activities.
Advantages of surgery
Improved push-off strength
Surgical repair restores tendon tension more accurately, which is particularly important for patients requiring explosive power during running, jumping or pivoting sports.
Lower risk of re-rupture
Current evidence demonstrates that the risk of a further tendon rupture is approximately 3% following surgery, compared with around 10% following non-operative treatment.
Earlier return to high-level sport
Recovery of strength and dynamic function is often faster for patients returning to sports involving acceleration, jumping or rapid directional changes.
Disadvantages of surgery
Risk of infection
The principal disadvantage of surgery is the risk of wound complications and infection. The Achilles tendon is covered by relatively thin soft tissues with a limited blood supply, making wound healing more challenging than in many other anatomical locations.
Modern surgical techniques
Whenever appropriate, percutaneous or minimally invasive repair is preferred. These techniques reduce soft tissue trauma, decrease postoperative pain and lower the risk of wound complications while providing excellent tendon repair.
Non-operative treatment: a well-established alternative
Over the past decade, functional non-operative treatment has become increasingly accepted, supported by numerous high-quality clinical studies.
Who is non-operative treatment recommended for?
Conservative treatment is generally preferred for:
- patients with lower physical demands;
- individuals at increased risk of wound healing complications, particularly smokers and patients with diabetes;
- ruptures occurring at the musculotendinous junction.
Advantages of non-operative treatment
No surgical wound
Avoiding surgery eliminates the risk of postoperative wound complications and infection.
Comparable long-term outcomes
When combined with an early functional rehabilitation programme, long-term outcomes regarding walking ability, pain relief and overall function are now considered comparable to those achieved with surgery in appropriately selected patients.
Disadvantages of non-operative treatment
Slight reduction in calf strength
The tendon may heal with a small degree of elongation, resulting in a modest reduction in push-off strength and explosive power.
Higher risk of re-rupture
The reported risk of recurrent rupture is approximately 10%, compared with around 3% following surgical repair.
Surgery versus non-operative treatment
| Surgery | Non-operative treatment | |
| Risk of re-rupture | Very low (approximately 3%) | Moderate (approximately 10%) |
| Wound complications | Small risk of infection | None |
| Muscle strength | Optimal restoration | Mild loss of strength |
| Overall recovery period | Approximately 6 months | Approximately 6 months |
Rehabilitation: the key to a successful recovery
Regardless of whether treatment is surgical or non-operative, physiotherapy is the single most important factor determining the final outcome.
Rehabilitation typically progresses through several stages.
Protection phase (Weeks 1 to 6)
The walking boot is worn to protect tendon healing while gentle ankle mobilisation begins under supervision.
Progressive loading phase (Weeks 6 to 12)
Weight-bearing gradually increases. Walking pattern is restored and gentle strengthening of the calf muscles begins.
Strengthening phase (Months 3 to 6)
Progressive eccentric strengthening exercises, balance training and sport-specific rehabilitation are introduced.
Return to sport (After 6 months)
Return to unrestricted sporting activities is considered only after satisfactory recovery of strength and successful completion of functional testing.
How is the treatment decision made?
The final treatment strategy is determined following a detailed discussion between you and your orthopaedic surgeon.
The main factors influencing the decision include:
- your age;
- your overall health, particularly the presence of diabetes or smoking, which increase the risk of wound complications;
- your sporting level and functional expectations. A 20-year-old football player is generally more likely to benefit from surgical repair than a 60-year-old recreational walker;
- the time elapsed since injury. Chronic ruptures (more than two weeks old) are technically more difficult to repair surgically.
Conclusion: What should you remember?
If your priority is to achieve the highest possible level of athletic performance while minimising the risk of tendon re-rupture, surgical repair is generally recommended.
If your physical demands are more moderate and you wish to avoid the risks associated with surgery, functional non-operative treatment can provide excellent long-term results, provided that the rehabilitation programme is followed meticulously.
In every case, a specialist consultation with an orthopaedic surgeon, together with appropriate imaging such as MRI or ultrasound, is essential to determine the treatment strategy best suited to your injury and your lifestyle.