# Acute ankle sprain (lateral ligament)

- Category: acute
- Review status: reviewed (every claim checked against a document named on this page)
- Sources: Bachmann LM et al. BMJ 2003;326:417 (PMC149439) · Ibuprofen 400 mg film-coated tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 7020) · Paracetamol 500 mg Tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 5164) · Voltarol 1.16% Emulgel SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 366) · Bergman R, Li D, Shuman VL. Acute Ankle Sprain. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK459212. PMID: 29083595.
- Verified date: 2026-08

## Verified against

- Bachmann LM et al. BMJ 2003;326:417 (PMC149439)
- Ibuprofen 400 mg film-coated tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 7020)
- Paracetamol 500 mg Tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 5164)
- Voltarol 1.16% Emulgel SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 366)
- Bergman R, Li D, Shuman VL. Acute Ankle Sprain. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK459212. PMID: 29083595.

## Treatment metadata

- Decide the X-ray with the Ottawa ankle rules
- Diclofenac diethylamine — topical.gel
- Ibuprofen — 400 mg — oral.solid
- Paracetamol — 500 mg — oral.solid

## Complete treatment card

```text
ACUTE ANKLE SPRAIN (LATERAL LIGAMENT)
Sources: Bachmann LM et al. BMJ 2003;326:417 (PMC149439) · Ibuprofen 400 mg film-coated tablets SmPC
         sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 7020) · Paracetamol 500
         mg Tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC product 5164) ·
         Voltarol 1.16% Emulgel SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC
         product 366) · Bergman R, Li D, Shuman VL. Acute Ankle Sprain. In: StatPearls [Internet].
         Treasure Island (FL): StatPearls Publishing; 2026 Jan-. Bookshelf ID: NBK459212. PMID:
         29083595.
Review status: REVIEWED against 5 sources listed above  (2026-08)

IS IT THIS? - reference only, to read alongside your own examination
  RED FLAGS (4)
    - Cannot bear weight for four steps - X-ray
    - Bone tenderness at either malleolus, the navicular or the fifth metatarsal base - X-ray
    - A limping child - the growth plate fails before the ligament does, so this is not a sprain
      until imaged
    - Cannot lift the heel off the ground or a palpable gap in the tendon - suspect Achilles
      rupture, refer
  SYMPTOMS - what the patient reports (5)
    - Inversion injury, then pain on the outer side of the ankle
    - Ask whether they could put weight on it at the time, not only now - the rule asks about both
    - It happens when inversion or eversion force runs past what the ligaments can take, and they
      stretch, tear partly, or rupture outright
    - The acute inflammatory response is what produces the pain, the swelling and the instability of
      the joint
    - What raises the risk from within: poor proprioception, a previous ankle sprain, lax ligaments
      and malalignment of the lower limb
  SIGNS - what you find (6)
    - Palpate all four malleolar points: posterior edge and tip, medial and lateral
    - Palpate the navicular and the base of the fifth metatarsal
    - Watch them take four steps, two on each foot - limping still counts as bearing weight  [limp]
    - Most sprains take the lateral ligament complex, above all the anterior talofibular ligament,
      which is the weakest and the one most often injured
    - A worse injury also reaches the calcaneofibular ligament, and rarely the one behind it, the
      posterior talofibular
    - The medial deltoid sprain and the high ankle syndesmotic sprain are less common but carry
      greater morbidity
  TESTS (1)
    - No blood test. The only question is whether to X-ray, and the rules answer it
  Score   Ottawa ankle rules - Does this ankle need an X-ray?
  Source  Bachmann LM, Kolb E, Koller MT, Steurer J, ter Riet G. Accuracy of Ottawa ankle rules to
          exclude fractures of the ankle and mid-foot: systematic review. BMJ 2003;326:417
  Status  traced to the source above

1. DECIDE THE X-RAY WITH THE OTTAWA ANKLE RULES           [1st line]
   Adult    Open the Ottawa ankle rules before requesting a film. If no rule is positive, an X-ray
            is not needed.
   Peds     No paediatric dose is stated in the sources held for this drug.
   Source   Bachmann LM et al. BMJ 2003;326:417 (PMC149439)
   Why      A rule that says when NOT to image is the useful half. Imaging every twisted joint is
            how a clinic fills its X-ray list with normal films.
   Caution  A negative rule is a reason not to X-ray, not proof there is no fracture - it pooled
            97.6% sensitivity, not 100%.
            Bearing weight must be checked at the time of injury AND now; one of the two is not the
            rule.
            Not validated as a reason to withhold imaging in a limping child - the growth plate
            fails before the ligament.

2. DICLOFENAC DIETHYLAMINE                                [1st line]
   Adult    2-4 g (a circle 2.0-2.5 cm across) rubbed in 3-4 times daily - review after 14 days
   Peds     Contraindicated under 14 years (SmPC 4.2). It is not a smaller dose for a younger child
            - the product is not licensed for them at all.
   Source   Voltarol 1.16% Emulgel SmPC sections 4.1 Therapeutic indications and 4.2 Posology (eMC
            product 366)
   Why      Named first because its label names this injury: SmPC 4.1 covers trauma of tendons,
            ligaments, muscles and joints due to sprains, strains and bruises. A topical NSAID
            reaches the painful tissue without the gastric and renal exposure of a swallowed one.
   Caution  Do not apply to broken skin, open wounds, or mucous membranes.
            Avoid in the last trimester of pregnancy.
            Wash hands after applying unless the hands are the site treated.
   Egypt    VOLTAREN 1% EMULGEL 25 GM        NOVARTIS > GL...    39.00 EGP
            DICLOPRO 1% GEL 50 GM            DBK PHARMA > ...    52.00 EGP
            VOLTAREN 1% EMULGEL 50 GM        NOVARTIS > GL...    68.00 EGP
            VOLTAREN 1% EMULGEL 100 GM       NOVARTIS > GL...   101.00 EGP

3. IBUPROFEN                                              [2nd line]
   Adult    200-400 mg orally 3-4 times daily with food, at least 6 hours apart - maximum 1200 mg in
            24 hours; shortest duration that controls the pain
   Peds     A limping child after an ankle or knee injury is not managed as a sprain. The growth
            plate is weaker than the ligament, so the same force that sprains an adult fractures a
            child - assess for a physeal injury rather than prescribing and waiting.
   Source   Ibuprofen 400 mg film-coated tablets SmPC sections 4.1 Therapeutic indications and 4.2
            Posology (eMC product 7020)
   Why      SmPC 4.1 lists painful swelling and inflammation after soft tissue injuries. Second line
            to the gel only because a swallowed NSAID exposes the whole patient to reach one joint.
   Caution  Avoid in active peptic ulcer, and in severe heart, liver or kidney disease.
            Co-prescribe a PPI if elderly or at GI risk.
            Avoid in the third trimester of pregnancy.
   Egypt    DAJUANOFEN 400 MG 20 F.C. TABS.  COPAD PHARMA         5.00 EGP (0.25/unit)
            FLABU 400MG 10 F.C.TAB.          DELTA PHARMA         3.75 EGP (0.38/unit)
            NOVA-PROFEN 400MG 30 F.C. TABLETS SANOFI                           12.75 EGP (0.42/unit)
            IBUPROFEN 400 MG 10 TAB.         SEDICO               6.00 EGP (0.60/unit)
            MAFO 400 MG  30 F.C.TABS         EIPICO              42.00 EGP (1.40/unit)
            BRUFEN 400 MG 30 TABS.           KAHIRA > ABBO...    78.00 EGP (2.60/unit)
            PROFUSOL 400MG 20 S.G CAPS.      EUROPEAN EGYP...    31.00 EGP
            ANALGIPROF 400 MG 25 SACHETS     EVA PHARMA          37.50 EGP
            NOVA-PROFEN  100MG/5ML ORAL SUSP. 100ML SANOFI                                  2.25 EGP
                -> ? strength differs, ? different route - not oral solid
            BRUFEMOL-N SUSP. 60 ML           ARAB DRUG COM...     4.50 EGP
                -> ? strength differs, ? different route - not oral solid

4. PARACETAMOL                                            [add-on - not a substitute]
   Adult    1 g (two 500 mg tablets) orally every 4-6 hours - maximum 4 g in 24 hours; not more than
            3 days without review
   Peds     Paediatric dosing is by weight and is not given here; see the child's own condition
            entry.
   Source   Paracetamol 500 mg Tablets SmPC sections 4.1 Therapeutic indications and 4.2 Posology
            (eMC product 5164)
   Why      Add-on for a patient who should not have an NSAID, or alongside one. It does not replace
            the NSAID - it has no anti-inflammatory action on the injured ligament.
   Caution  Count every other product the patient is taking that contains paracetamol.
            Reduce the dose in low body weight, chronic alcohol use or hepatic impairment.
   Egypt    FEBRIMOL 500 MG 20 TAB.          PHARCO               3.50 EGP (0.17/unit)
            CETAMOL 500 MG 20 TABS.          MEMPHIS              8.00 EGP (0.40/unit)
            PARACETAMOL-MUP 500MG B.P. 20 TABS. MUP                            13.00 EGP (0.65/unit)
            CETAL 500 MG 20 TABS.            EIPICO              24.00 EGP (1.20/unit)
            ARKADOLOW 500 MG 30 F.C. TABS.   UTOPIA              42.00 EGP (1.40/unit)
            PARAMOL 500MG 20 TAB.            MISR                38.00 EGP (1.90/unit)
            ADOL 500MG 24 CAPLETS            JULPHAR             32.00 EGP
            AUGICETAMIDE 500 MG 20 SACHETS   AUG PHARMA          50.00 EGP
            FEBRIMOL ORAL DROPS 20 ML        PHARCO               4.00 EGP
                -> ? strength differs, ? different route - not oral solid
            THERA-LO 3.2G/100ML ORAL SUSP. 100 ML PHAROPHARMA                               5.00 EGP
                -> ? strength differs, ? different route - not oral solid

Prices are indicative (dataset snapshot 2026-06); verify with the pharmacy.
```

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