Peroneal Tendinopathy
Lower LimbOverview
Peroneal tendinopathy is a chronic overuse condition affecting the peroneus longus and/or brevis tendons, characterized by pain and dysfunction along the lateral aspect of the ankle and lower leg. This condition commonly results from repetitive inversion ankle movements, chronic ankle instability, or biomechanical dysfunction. Conservative management including activity modification, manual therapy, and progressive rehabilitation typically yields favorable outcomes.
Pathophysiology
Peroneal tendinopathy develops through cumulative microtrauma from repetitive loading or chronic lateral ankle instability, leading to degenerative changes within the tendon matrix, inflammation of the paratenon, and potential subluxation or dislocation of the tendons around the lateral malleolus. The tendons run in a groove posterior to the lateral malleolus; abnormal foot mechanics, ankle laxity, or anatomical variations can cause friction and mechanical irritation. Intratendinous degeneration involves collagen disorganization, neovascularization, and proteoglycan accumulation without acute inflammatory infiltration.
Typical Presentation
Site
Lateral ankle and lower leg, specifically along the path of the peroneal tendons posterior to the lateral malleolus; may extend into the lateral midfoot and dorsolateral foot
Quality
Aching, burning, or sharp pain; possible clicking or snapping sensation indicating subluxation
Intensity
Variable mild to moderate pain, typically 3-6/10, worsening with activity and easing with rest; may have periods of acute exacerbation
Aggravating
Inversion movements, walking on uneven surfaces, running or jumping, prolonged weight-bearing, tight footwear, rapid directional changes, activities requiring plantarflexion and eversion against resistance
Relieving
Rest, ice application, ankle support or strapping, gentle movement, elevation, anti-inflammatory modalities
Associated
Chronic ankle instability, recurrent ankle sprains, proprioceptive deficits, peroneal muscle weakness, reduced ankle dorsiflexion range, swelling along lateral ankle, possible foot pronation, gait abnormalities
Orthopaedic Tests
Test descriptions are written with AI assistance from standard clinical texts. Where a test lists Sources, its description has been checked against them; those sources are independent and do not endorse OsteoKit. Accuracy figures and grades (A–D) appear only when checked against the published study; tests without one are marked “No accuracy study”.
Further reading: full test procedures are described in standard clinical examination texts, e.g. Magee & Manske, Orthopedic Physical Assessment (7th ed.), and Cook & Hegedus, Orthopedic Physical Examination Tests: An Evidence-Based Approach (2nd ed.).
Ankle Inversion Stress Test (Anterior Talofibular Ligament Test)
Procedure
Patient seated. Stabilise the lower leg and gently invert and plantarflex the foot, comparing movement and pain with the other side.
Positive Finding
Pain over the lateral ligaments, or more movement than on the other side.
Interpretation
A lateral ligament test, used here because chronic ankle instability often accompanies peroneal tendon problems. It does not test the peroneal tendons themselves. The figure stored here belongs to lateral ankle ligament testing, not to this condition, so no figure is shown.
Peroneal Tendon Subluxation Test (Circumduction)
Procedure
Patient seated or prone, knee bent. Ask the patient to dorsiflex and evert the foot against resistance (or to circle the ankle) while you palpate behind the lateral malleolus.
Positive Finding
The tendons are felt or seen slipping forwards over the malleolus, often with a snap and pain.
Interpretation
Suggests peroneal tendon instability from a torn superior peroneal retinaculum, which is often missed after an 'ankle sprain'. Dynamic ultrasound confirms it; orthopaedic referral is usually needed. A literature search (Europe PMC, September 2026) found no study reporting the diagnostic accuracy of this test, so no figure is shown. Ultrasound, including dynamic scanning, is used to confirm tendon subluxation.
Peroneal Tendon Palpation
Procedure
Patient seated or side-lying. Palpate the peroneal tendons behind and below the lateral malleolus and along their course to the fifth metatarsal base (brevis) and under the cuboid (longus), comparing with the other side.
Positive Finding
Tenderness, swelling or thickening along the tendons.
Interpretation
Supports peroneal tendinopathy or tenosynovitis. Tenderness behind the lateral malleolus overlaps with lateral ligament and fibular problems, so combine it with resisted eversion and the history. Ultrasound can confirm a tendon tear.
Peroneal Tendon Resisted Eversion
Procedure
Patient seated. Ask the patient to push the foot outwards (eversion) and down against your resistance, while you palpate the tendons.
Positive Finding
Pain along the peroneal tendons, or weakness compared with the other side.
Interpretation
Loads the peroneal tendons and supports them as the pain source. Marked weakness, or a tendon felt slipping forwards over the malleolus, suggests a tear or instability and needs imaging.
Single-Leg Stance or Single-Leg Hop Test
Procedure
Ask the patient to stand on the affected leg, then hop, and note pain, balance and control.
Positive Finding
Pain along the peroneal tendons, poor balance, or the ankle giving way.
Interpretation
A functional check of load tolerance and ankle control that guides rehabilitation. It does not diagnose tendon problems.
Peroneal Tendon Palpation (Distal Course)
Procedure
Palpate peroneus brevis to its insertion on the base of the fifth metatarsal, then peroneus longus as it turns under the cuboid towards the base of the first metatarsal.
Positive Finding
Tenderness along the distal tendon, at the fifth metatarsal base or beneath the cuboid.
Interpretation
Locates the painful part of the tendon. Tenderness at the fifth metatarsal base after an inversion injury may be a fracture and needs an X-ray (Ottawa foot rules). Pain under the cuboid can come from an os peroneum.
⚠ Red Flags
- •Severe trauma or fracture suspected (obtain imaging)
- •Signs of deep vein thrombosis (unilateral calf swelling, warmth, deep-vein tenderness). Homan's sign is unreliable (sensitivity roughly 10-54%, specificity roughly 39-89%) and must not be used to include or exclude DVT
- •Neurological compromise (foot drop, numbness in peroneal nerve distribution)
- •Systemic inflammatory conditions (rheumatoid arthritis, seronegative spondyloarthropathy)
- •Unexplained significant swelling or constitutional symptoms
- •Tendon rupture with loss of eversion strength
⚡ Yellow Flags
- •High kinesiophobia or fear of movement related to ankle instability
- •Psychological distress from recurrent ankle injuries
- •Occupational demands requiring high ankle stability without adequate support
- •Poor compliance with rehabilitation due to perceived prognosis
- •Secondary gain from chronic ankle dysfunction
- •Perfectionist personality with excessive training load
Osteopathic Techniques
Non-operative care comes first and is usually given 4–6 months: NSAIDs, ice, rest or a boot, physiotherapy and a lateral heel wedge to unload the tendons. No trials of osteopathic techniques were found.
- Reference bookWalt & Massey · StatPearls 2023
Region
Peroneal muscles and tendons, lateral ankle
Technique
Rationale
Calf and lower-leg soft tissue is usually given alongside a loading or stretching programme.
How it's done & evidence
How it's done
Hands-on kneading, stroking and sustained pressure to the calf (gastrocnemius and soleus), the Achilles tendon and the peroneal and tibial muscles of the lower leg. In trials it was given alongside exercise, such as eccentric calf loading.
Evidence in Peroneal Tendinopathy
Searched 25 Oct 2026: no trials of soft tissue technique in peroneal tendinopathy.
Sources
- Journal articleFurlan et al. · Cochrane 2015
- Journal articleKo et al. · BMC Musculoskelet Disord 2023
Region
Ankle and subtalar joints
Technique
Rationale
Ankle, subtalar and midfoot glides, mainly to restore dorsiflexion and foot mobility.
How it's done, cautions & evidence
How it's done
Passive, rhythmic, low-velocity glides of the ankle (talocrural), subtalar, midfoot and toe joints, within or up to the end of the available range, often aimed at restoring ankle dorsiflexion.
Cautions
Before mobilising an acute ankle injury, check for fracture with the Ottawa ankle rules (tenderness over either malleolus), and palpate the base of the 5th metatarsal, the navicular and the midfoot for a Lisfranc injury.
Evidence in Peroneal Tendinopathy
Searched 25 Oct 2026: no trials of ankle or subtalar mobilisation in peroneal tendinopathy.
Sources
- Journal articleCoulter et al. · Spine J 2018
- Reference bookBergman et al. · StatPearls 2025
Region
Fibular head
Technique
Rationale
Fibular head muscle energy technique; fibular head dysfunction can contribute to ankle pain.
How it's done, cautions & evidence
How it's done
Patient supine or seated with the knee bent to 90°. Draw the fibular head toward its restricted direction while taking the foot to its barrier (plantarflexion and supination, or dorsiflexion and pronation). The patient pushes the ankle gently against resistance for 3–5 seconds, relaxes, and the new barrier is taken up. Repeat 3–5 times, then re-check fibular head motion.
Cautions
Not used with an acute ankle sprain or a lax ankle, an acute fibular fracture or a deep vein thrombosis, or when positioning could aggravate an acute injury.
Evidence in Peroneal Tendinopathy
Searched 25 Oct 2026: no trials. Indirect: StatPearls (MET and HVLA, fibular head) notes that fibular head somatic dysfunction can lead to knee and ankle pain and gait changes.
Sources
- Reference bookDecker et al. · StatPearls 2024
Rehabilitation Exercises
Gastrocnemius and Soleus Stretch (Standing Wall or Lunge)
Peroneal Muscle Stretch (Cross-Leg Seated Reach)
Ankle Plantarflexion and Dorsiflexion (Seated or Supine)
Ankle Inversion and Eversion (Gentle, Non-Weight-Bearing)
Peroneal Eversion (Resistance Band, Seated)
Plantarflexion with Inversion (Weighted or Resistance Band)
Single-Leg Calf Raises
Single-Leg Standing Balance (Progression to Eyes Closed)
Balance Board or Wobble Cushion Training
Single-Leg Stance on Uneven Surface (Foam or Pillow)
Gait Training with Focus on Neutral Ankle Position
Single-Leg Lateral Hops or Lateral Lunges (Advanced Sport-Specific)
Referral Criteria
- •Suspected tendon rupture with complete loss of eversion strength or inability to perform normal gait
- •Severe acute swelling with signs of compartment syndrome (pain out of proportion, paresthesia)
- •Chronic pain unresponsive to 8-12 weeks of conservative management despite compliance
- •Subluxation or dislocation of peroneal tendons causing instability or functional impairment
- •Neurological signs suggesting peroneal nerve compromise
- •Imaging findings requiring surgical consultation (displaced fractures, significant tendon tears)
- •Suspicion of underlying rheumatological or systemic inflammatory condition
- •Complex ankle instability requiring specialist orthopedic or sports medicine assessment
- •Chronic regional pain syndrome features developing