Management of Ankle Pain in Elderly Patients with Normal Radiographs

Pharmacologic Management

Acetaminophen (up to 4 g/day) is recommended as the first‑line analgesic for elderly patients to avoid NSAID‑related gastrointestinal, renal, and cardiovascular complications (American Geriatrics Society) 1.
If acetaminophen is insufficient, topical NSAIDs should be tried before oral NSAIDs to limit systemic exposure (American Geriatrics Society) 1.
When oral NSAIDs are required, prescribe the lowest effective dose for the shortest duration and co‑prescribe a proton‑pump inhibitor for gastro‑protection in older adults (American Geriatrics Society) [1][2].
COX‑2 selective inhibitors may be used with caution; rofecoxib is associated with fluid retention and increased cardiovascular risk in older adults, especially without concurrent aspirin (American Geriatrics Society) 2.
Intra‑articular corticosteroid injection (e.g., triamcinolone) is advised for moderate‑to‑severe pain when inflammatory signs such as joint effusion are present or when oral NSAIDs are contraindicated (British Medical Journal; American Geriatrics Society) [1][2].
Intra‑articular hyaluronic acid can be considered for pain refractory to non‑invasive measures, although evidence is stronger for knee osteoarthritis (American Geriatrics Society) 2.
Opioid analgesics should be reserved as a last resort for severe refractory pain; in patients >75 years, total tramadol should not exceed 300 mg/day (American Geriatrics Society) 2.

Early mobilization with a semirigid ankle brace or lace‑up support is preferred over immobilization to prevent joint stiffness, muscle atrophy, and loss of proprioception (British Medical Journal) 1.
Neuromuscular training and proprioceptive exercises have moderate‑level evidence for reducing functional instability and re‑injury risk (British Medical Journal) 1.
Progressive weight‑bearing as tolerated, targeted muscle strengthening, and general aerobic conditioning constitute core non‑pharmacologic therapy (British Medical Journal) 1.
Manual therapy techniques (joint manipulation and stretching) improve ankle dorsiflexion and should be incorporated (British Medical Journal) 1.
Local heat or cold applications provide symptomatic relief (British Medical Journal) 1.
Assistive devices such as a walking stick and shock‑absorbing footwear are recommended for patients with activity‑of‑daily‑living limitations (British Medical Journal) 1.

Magnetic Resonance Imaging (MRI) without IV contrast is the preferred modality to evaluate all ankle structures (ligaments, tendons, cartilage, bone) and to detect occult osteochondral lesions, ligamentous tears, and tendon pathology not visible on plain radiographs (American College of Radiology) 3.
MRI demonstrates high accuracy for identifying intra‑articular pathology when mild anterior joint effusion is present, suggesting possible cartilage injury, synovitis, or impingement lesions (American College of Radiology) 3.
If MRI is contraindicated (e.g., pacemaker, severe claustrophobia, metallic implants), computed tomography (CT) without contrast is an acceptable alternative and provides superior visualization of cortical/subcortical bone and intra‑articular ossific bodies (American College of Radiology) [4][3].

Intra‑articular corticosteroid injection is indicated for moderate‑to‑severe pain with inflammatory signs, offering rapid symptom relief when oral NSAIDs are unsuitable (British Medical Journal; American Geriatrics Society) [1][2].
Hyaluronic acid injection may be used for persistent pain after failure of conservative measures, though evidence is extrapolated from knee osteoarthritis studies (American Geriatrics Society) 2.
Opioid therapy should be considered only after exhaustive trial of NSAIDs, corticosteroids, and hyaluronic acid, with careful dosing and monitoring for adverse effects (American Geriatrics Society) 2.

Referral for surgical evaluation is warranted after an adequate 6–8‑week trial of comprehensive conservative treatment fails to achieve satisfactory pain control or functional improvement (American Academy of Family Physicians) 5.
Additional surgical considerations include progression to moderate or severe ankle instability on repeat stress testing, large intra‑articular fracture fragments (>15 mm), and chronic ankle instability persisting despite rehabilitation (clinical consensus, not cited).

The American College of Radiology recommends obtaining radiographs if Ottawa Ankle Rules criteria are met, with a sensitivity of 96.7% for detecting fractures 6, 7, 8, 9, 10
Ottawa Ankle Rules criteria include inability to bear weight, point tenderness over specific areas, and other signs, with a high sensitivity for detecting fractures 6, 7, 9
Initial radiographs should be followed by MRI or CT if pain persists, to evaluate for occult fractures, osteochondral injuries, or ligamentous damage 6, 7, 8, 11
The American Academy of Family Physicians suggests that the OAR have a high sensitivity for detecting fractures, correctly ruling out fracture without radiography in 299 out of 300 patients 9, 10

The British Journal of Sports Medicine recommends performing a delayed physical examination (4-5 days post-injury) to assess ligament injury severity, including the anterior drawer test with 84% sensitivity and 96% specificity 12
Advanced imaging with MRI or CT is recommended if initial radiographs are negative but pain persists, with MRI being most sensitive for occult fractures and excellent for ligamentous injuries 6, 7, 8, 12, 11
The American College of Radiology suggests that MRI without IV contrast or CT without IV contrast are both appropriate next steps for evaluating persistent pain with negative initial radiographs 6, 7, 8, 11

The American Academy of Family Physicians recommends implementing functional rehabilitation with NSAIDs, semirigid or lace-up ankle supports, and graded exercise regimen with proprioceptive training for patients with no fracture identified 9, 10
For occult fractures or osteochondral lesions, management may include conservative treatment with immobilization and radiographic follow-up, or orthopedic referral for potential surgical fixation 13
The American College of Radiology suggests that osteochondral lesions may require arthroscopic excision or repair if symptomatic, and that severe ligament injuries may require surgical consideration after adequate rehabilitation trial 8, 11

The American Academy of Family Physicians warns against relying on clinical examination alone in the first 48 hours, as excessive swelling and pain limit accurate assessment of ligament integrity 9, 10
The American College of Radiology advises against missing syndesmotic (high ankle) injuries, which require different management and have longer recovery times, and recommends testing with the crossed-leg maneuver 10, 11