SHOCKIS / CLINICAL APPLICATION
Achilles Tendinopathy
Achilles tendinopathy is a common overuse condition characterized by Achilles tendon pain, swelling, and impaired function.
Disease Overview
Achilles tendinopathy is a common overuse condition characterized by Achilles tendon pain, swelling, and impaired function. It is classified into insertional type (at the bone-tendon junction) and midportion type (more than 2 cm proximal to the insertion point). Repetitive loading with insufficient recovery leads to degenerative changes in the tendon matrix.
Typical Symptoms and Associated Factors
Symptoms include posterior heel pain that worsens with physical activity.

Professional Evaluation
The diagnosis is primarily clinical, based on localized symptoms provoked by tendon-loading activities and focal tenderness on palpation. Current clinical practice guidelines do not recommend imaging as an aid for routine diagnosis; imaging studies may be considered when the diagnosis is uncertain or alternative pathologies need to be excluded.

Conservative Management
For midportion Achilles tendinopathy, clinical practice guidelines recommend progressive tendon-loading exercises and patient education as first-line treatment. Exercises should be individualized according to the patient's symptoms, functional capacity, and response to loading. Clinicians should avoid complete rest and encourage maintaining activity within pain tolerance. Other measures may include heel lifts, orthoses, and non-steroidal anti-inflammatory drugs.

ESWT: Potential Mechanisms and Limitations of Evidence
Extracorporeal Shock Wave Therapy (ESWT) is a non-invasive treatment that uses a device to deliver shock waves through the skin to the affected area. The exact mechanisms by which this therapy may exert effects on tendinopathy have not been fully elucidated. The evidence base for ESWT in Achilles tendinopathy is inconsistent.

Safety Considerations
Within the scope of the reviewed evidence, according to NICE, ESWT for Achilles tendinopathy does not raise major safety concerns. One systematic review reported 2 cases of Achilles tendon rupture after focused shock wave therapy; however, these cases were only reported as temporal associations after treatment, and no causal relationship can be established. These findings should be interpreted in the context of the limitations of the reviewed studies. Appropriate screening for patient contraindications, adherence to device-specific instructions for use, and sound professional clinical judgment remain essential.
Contact with SHOCKIS
Clinicians and procurement professionals evaluating shock wave therapy systems for Achilles tendinopathy should consider device-specific characteristics and the applicable regulatory status in their respective regions. The evidence summarized above reflects the broader ESWT literature and does not constitute validation of any specific SHOCKIS product for any particular indication. If you wish to discuss how SHOCKIS can support your clinical or procurement needs, our team is welcome to hear from you.
Clinical Workflow Checklist
- 01CLINICAL ASSESSMENT
Review patient history, symptoms, and contraindications.
- 02TARGET AREA IDENTIFICATION
Identify the treatment area through clinical examination and appropriate imaging when needed.
- 03TREATMENT SETUP
Select treatment parameters according to clinical assessment, device instructions, and patient tolerance.
- 04SHOCKWAVE APPLICATION
Apply coupling gel and deliver treatment while monitoring patient response.
- 05POST-TREATMENT CARE
Clean the treatment area and applicator, and provide appropriate aftercare guidance.
Safety Information
The information below describes conditions and reactions generally associated with extracorporeal shock wave therapy. It does not replace the instructions for use of the specific SHOCKIS device. Clinicians must verify applicability against the current device labeling and their own clinical judgment.
Contraindications & Precautions
Shock wave therapy should not be applied, or should be applied only with particular caution, in the following situations:
- Known hemorrhagic disorders or coagulation dysfunction
- Thrombosis in or adjacent to the intended treatment area
- Severe cognitive impairment or psychiatric illness
- Implanted pacemakers or other active electronic implants
- Tumors located in the treatment area
- Pregnancy, particularly the lower abdominal region
- Ruptured or severely injured tendons and fasciae, as well as regions containing the brain, spinal cord, large blood vessels, or major nerve trunks
- Regions containing abdominal organs, especially lung tissue
- Bone defects exceeding 2 cm
- Joint fluid leakage
- Growing pains in pediatric patients
Any other condition deemed unsuitable by the treating physician.
Potential Adverse Reactions
The following reactions may occur at or near the treatment site:
- Local hematoma, ecchymosis, or petechiae
- Temporary intensification of pain shortly after treatment
- Local numbness, needle-like sensation, or hypoesthesia
- High-energy extracorporeal shock wave therapy may cause local nerve or vascular injury
These reactions are generally transient and typically resolve within approximately one week without special treatment.
References
- [1] Korakakis V, Kotsifaki R, Sotiralis Y, Malliaras P. Shockwave Therapy for Midportion and Insertional Achilles Tendinopathy: A Nail in the Coffin? A Systematic Review With Meta-Analysis. J Orthop Sports Phys Ther. 2026;56(5):282-299. DOI: 10.2519/jospt.2026.13985. PMID: 42063301.
- [2] Ni T, Zhao Y, Pang L, Fu W. Extracorporeal shockwave therapy versus sham extracorporeal shockwave therapy for chronic Achilles tendinopathy: a meta-analysis of randomized controlled trials. PeerJ. 2026;14:e20506. DOI: 10.7717/peerj.20506. PMID: 41522497.
- [3] Chimenti RL, Neville C, Houck J, Cuddeford T, Carreira D, Martin RL. Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision – 2024. J Orthop Sports Phys Ther. 2024;54(12). DOI: 10.2519/jospt.2024.0302. PMID: 39611662.
- [4] National Institute for Health and Care Excellence. Extracorporeal shockwave therapy for Achilles tendinopathy. HealthTech guidance 426. Published 21 December 2016 (migrated from IPG312 and IPG571).