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Electrotherapy protocol
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"lateral epicondylitis" AND physiotherapy
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2025 clinical practice guideline lateral elbow tendinopathy electrotherapy exercise
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https://www.apta.org/patient-care/evidence-based-practice-re…
The notes appear to prescribe physiotherapy twice weekly for 6 weeks, with stretching and strengthening exercises for tennis elbow. I do not see a specific electrotherapy modality or setting written on the prescription.
Important discrepancy before treatment
- The physio note labels tennis elbow, left.
- The history also mentions difficulty lifting with the right hand and pain around the olecranon (back tip of elbow).
- Tennis elbow typically causes pain at the outer/lateral elbow, aggravated by gripping, resisted wrist extension, and forearm supination. Pain directly over the olecranon may indicate a different/additional problem. Confirm the affected side and exact tender location with the orthopaedic doctor or physiotherapist before starting.
Suggested physiotherapy protocol for confirmed lateral epicondylalgia
For a qualified physiotherapist to individualize after checking skin sensation, circulation, pain, grip strength, cervical/radial nerve signs, and diabetes status.
| Phase | Plan |
|---|---|
| Weeks 0-2 | Education and activity modification: avoid repetitive tight gripping, lifting with palm down, and forceful wrist extension. Use a counterforce strap or wrist splint only if the therapist finds it helpful. |
| Electrotherapy, adjunct only | TENS or IFC for pain relief: 20-30 minutes, comfortable strong sensory intensity, around the painful lateral elbow rather than directly on bony prominence. Use only as an adjunct to exercise, not as the main treatment. |
| Optional pain-relief measure | Cold pack 10-15 minutes with a cloth barrier after aggravating activity. Avoid if sensation or circulation is impaired. |
| Weeks 1-3: loading | Pain-limited isometric wrist extension: 5 repetitions of 30-45 seconds, daily or alternate days. Gentle wrist-extensor stretching: 3 repetitions of 20-30 seconds, 2-3 times/day. |
| Weeks 2-6: progressive strengthening | Slow wrist-extension strengthening with light weight/resistance band, including eccentric lowering: 3 sets of 8-15, every other day. Add grip work, then forearm pronation-supination as tolerated. Maintain pain during exercise at mild levels and ensure it settles by the next day. |
| Functional return | Gradually rebuild lifting and computer/manual-work tolerance. Keep the wrist neutral during lifting, use two hands when possible, and increase load slowly. |
The prescription’s exercise section is consistent with this: elbow muscle strengthening, supination-pronation, and gripping exercises.
Regarding ultrasound, shockwave, laser, etc.
Do not make passive modalities the core of treatment. The best-supported rehabilitation base is education, graded tendon loading, and progressive strengthening. A current APTA guideline addresses examination and intervention for adults with lateral elbow tendinopathy, while recent reviews show that evidence for passive modalities is mixed rather than a substitute for exercise: APTA lateral-elbow guideline and a 2022 systematic review. Evidence on shockwave versus ultrasound is still evolving, including a 2025 review.
Diabetes precautions
Because the note records type 2 diabetes:
- Check skin integrity and sensation before every electrical or heat treatment.
- Do not use electrodes over broken, infected, numb, or poorly perfused skin.
- Avoid high-heat modalities if protective sensation is reduced.
- Stop treatment for burning, unusual numbness, skin redness lasting more than about an hour, swelling, or increasing pain.
Seek reassessment promptly if there is visible swelling/redness over the olecranon, fever, marked weakness, hand numbness/tingling, or pain worsening despite 2-3 weeks of correct loading.
Clinical context: tennis elbow commonly affects the wrist-extensor tendon origin and is provoked by gripping, wrist extension, and supination. Campbell’s Operative Orthopaedics, 15th ed., p. 2181.
Clarify TENS versus IFC settings and precautions
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TENS contraindications precautions diabetes impaired sensation interferential therapy evidence lateral elbow tendinopathy
TENS versus IFC for tennis elbow pain relief
Both are adjuncts for temporary pain relief, not treatments that repair the tendon. The primary treatment should remain graded wrist-extensor, grip, and forearm strengthening.
1. TENS: practical starting settings
Use conventional high-frequency TENS for activity-related elbow pain.
| Parameter | Starting setting |
|---|---|
| Frequency | 80-120 Hz |
| Pulse width | 50-100 microseconds |
| Intensity | Strong but comfortable tingling, no visible muscle contraction |
| Duration | 20-30 minutes |
| Frequency of use | At physiotherapy sessions, or home use if trained. Usually up to 1-3 sessions/day as needed, with skin checks. |
| Electrode placement | Two pads placed around the painful lateral elbow / common wrist-extensor tendon area, not directly over the most prominent bony point. Keep pads a few centimetres apart and on clean, dry, intact skin. |
Goal: reduce pain enough to allow the prescribed exercises and normal light activity. Pain relief may be short-lived, so do not judge tendon recovery solely by response to TENS.
2. IFC: practical starting settings
IFC is usually delivered in clinic using four electrodes. It can feel more comfortable at higher intensity because it uses a medium-frequency carrier current.
| Parameter | Starting setting |
|---|---|
| Carrier frequency | 4,000 Hz |
| Amplitude-modulated frequency | 80-150 Hz for analgesia |
| Sweep | 80-150 Hz or a similar analgesic sweep, if the machine offers it |
| Intensity | Strong, comfortable sensory tingling, without motor contraction |
| Duration | 15-20 minutes, up to 30 minutes if well tolerated |
| Electrode placement | Four electrodes placed to cross the painful lateral-elbow region, with the target area in the middle of the current field. |
Which should be chosen?
- TENS is simpler, cheaper, and suitable for a supervised home programme.
- IFC may feel more comfortable at a stronger sensory intensity, but it is usually clinic-based.
- There is no reliable reason to use both in the same session. Choose one, assess pain and function, then prioritize exercise.
Evidence for electrotherapy in lateral elbow tendinopathy is variable. It may help pain temporarily but should not replace progressive loading. A 2022 systematic review of physiotherapy approaches and recent reviews of nonoperative care do not establish electrotherapy as a stand-alone solution: physiotherapy systematic review and nonoperative-treatment review.
Essential precautions for this case
Because diabetes is documented, check for reduced skin sensation, neuropathy, poor circulation, wounds, or fragile skin before every session.
Do not use TENS or IFC
- Over broken, infected, inflamed, bleeding, or insensate skin.
- If the person has an implanted electrical device such as a pacemaker, ICD, neurostimulator, or implanted pump, unless the treating medical team specifically clears it.
- Across the chest, over the front or sides of the neck, over the carotid sinus, through the head, or over the eyes.
- During bathing, sleeping, driving, or operating machinery.
- Where the patient cannot understand, report, or safely adjust the sensation.
Use only with clinician clearance or close supervision
- Diabetes with numbness, reduced protective sensation, ulcers, marked peripheral arterial disease, or poor wound healing.
- Epilepsy, especially if electrodes could be near the head or neck.
- Pregnancy, avoiding abdomen, pelvis, and lower back unless specifically prescribed.
- Active cancer in the intended treatment region, unexplained pain, recent trauma, suspected fracture, infection, or acute swollen/red elbow.
- Significant skin allergy to adhesive electrodes.
Impaired sensation matters because both TENS and IFC depend on the patient feeling and reporting a safe intensity. An evidence-based review specifically advises against TENS/IFC when impaired sensation prevents this feedback: electrophysical-agent precautions. General TENS safety guidance also recommends checking skin, sensation, implanted devices, and correct electrode placement before use: NCBI clinical summary.
Stop and reassess if
- Burning, sharp pain, new numbness, dizziness, palpitations, rash, blistering, or redness persisting more than about an hour occurs.
- Elbow pain is mainly at the olecranon, with redness, warmth, swelling, or fever. That pattern is not typical of lateral tennis elbow and needs reassessment.
- The note contains a side discrepancy, with tennis elbow recorded on the left but difficulty lifting described in the right hand. Confirm the side and diagnosis before electrode placement or exercise loading.
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