Orthopedic Emergencies and Clinical Management
1. Red Flags and Emergencies (Do Not Miss)
Cauda Equina Syndrome
- Back pain and sciatica
- Saddle anesthesia or reduced perianal sensation
- Urinary retention leading to late incontinence
- 👉 Management: Urgent MRI of the spine
Epidural Abscess or Discitis Complication
- Back pain, fever, and neurological signs
- Risk factors: Intravenous drug use (IVDU), infective endocarditis
- Organism: Staphylococcus aureus
- 👉 Management: MRI; consider echocardiogram if discitis is present
Compartment Syndrome
- Pain out of proportion to the injury
- Pain on passive stretch (key clinical sign)
- Increased analgesia requirement
- Pulses may be present (do not use their presence to rule out the condition)
- 👉 Management: Emergency fasciotomy
Spinal Cancer Red Flags
- Previous history of malignancy
- Thoracic back pain
- Progressive neurological deficit
2. Fractures and Trauma
Upper Limb
Scaphoid Fracture
- Fall on an outstretched hand (FOOSH), snuffbox tenderness, and pain on thumb compression
- Risk: Avascular necrosis (specifically of the proximal pole)
- Initial management: Splint or backslab
- If X-ray is normal: Repeat imaging in 7–10 days
- Proximal pole involvement: Surgical fixation
Colles’ Fracture
- FOOSH leading to a dorsally displaced distal radius
- “Dinner fork” deformity
- Complication: Median nerve injury
Galeazzi Fracture
- Radial shaft fracture combined with distal radioulnar joint dislocation
Monteggia Fracture
- Ulnar fracture combined with proximal radioulnar dislocation
Biceps Rupture
- “Popeye” deformity
Shoulder Dislocation
- Anterior (>95%): Often caused by FOOSH
- Posterior: Associated with seizures or electric shocks
- Can be reduced without sedation in selected cases
Lower Limb
Ankle Sprain
- Inversion injury
- Anterior talofibular ligament (ATFL) is most commonly affected
Weber A Fracture
- Stable: Managed with a CAM boot and weight-bearing as tolerated
5th Metatarsal Fracture
- Result of an inversion injury
Stress Fracture
- The tibia is the most common site
Hip Fractures
- Intracapsular: Managed with hemiarthroplasty or total hip replacement (THR)
- Intertrochanteric: Managed with a dynamic hip screw
- Subtrochanteric: Managed with an intramedullary nail
- Aim: Early mobilization and weight-bearing
Posterior Hip Dislocation
- Presents as a shortened and internally rotated leg
- Risk of sciatic nerve injury
3. Spine and Radiculopathy
Radiculopathy Patterns
L3
- Anterior thigh sensory loss
- Weakness in hip flexion and knee extension
- Decreased knee reflex
L4
- Medial knee and medial malleolus sensory loss
- Weakness in knee extension and hip adduction
- Decreased knee reflex
L5
- Sensory loss on the dorsum of the foot
- Foot drop (dorsiflexion weakness)
- Hip abduction weakness
- No specific reflex loss
S1
- Posterolateral leg and lateral foot sensory loss
- Weakness in plantar flexion
- Decreased ankle reflex
Spinal Conditions
Spinal Stenosis
- Neurogenic claudication
- Symptoms worsen with walking and are relieved by sitting or leaning forward
Cauda Equina
- Bilateral sciatica and saddle anesthesia
- Late signs: Urinary incontinence
- Requires urgent MRI
Discitis
- Staphylococcus aureus is the most common organism
- Risk factor: Intravenous drug use (IVDU)
- Can progress to an epidural abscess
4. Joint and Ligament Conditions
Knee
Meniscal Tear
- Twisting injury
- Symptoms include locking and giving way
- MRI confirms the diagnosis
- Ligament injuries: MRI is the best imaging modality
ACL Injury
- Sudden “pop,” swelling, and instability
- Lachman test is the most sensitive clinical test
Osteochondritis Dissecans
- Knee pain following exercise
- Symptoms include locking and clunking
Shoulder
Rotator Cuff Injury
- Presents with a painful arc
- Treatment: Analgesia and physiotherapy unless a tear is suspected
Adhesive Capsulitis
- Risk factor: Diabetes
- Classic sign: Loss of external rotation
AC Joint Injury (Grade 1–2)
- Conservative management (sling and rest)
Hand and Wrist
Carpal Tunnel Syndrome
- Median nerve compression
- Diagnosis: Prolonged sensory and motor conduction on nerve studies
- Treatment: Splint or steroid injection as first-line therapy
- Surgical management: Flexor retinaculum release
- Rheumatoid Arthritis (RA) is a common cause
De Quervain’s Tenosynovitis
- Radial wrist pain
- Inflammation of the extensor pollicis brevis (EPB) and abductor pollicis longus (APL) tendon sheaths
- Finkelstein test is positive
Dupuytren’s Contracture
- Risk factors: Phenytoin use and diabetes
- Metacarpophalangeal (MCP) contracture: Patient cannot place the hand flat
Ganglion Cyst
- Located on the dorsal wrist; transilluminates
5. Hand Osteoarthritis
- Heberden’s nodes (located at the DIP joints)
- Carpometacarpal (CMC) joint involvement
- Thumb squaring
- Common pattern in Osteoarthritis (OA) hand disease
6. Hip and Lower Limb Pain
Trochanteric Bursitis
- Lateral hip pain
- Tenderness over the greater trochanter
IT Band Syndrome
- Runner’s knee pain
Plantar Fasciitis
- Heel pain (medial calcaneus)
Meralgia Paraesthetica
- Lateral femoral cutaneous nerve compression
- Burning pain in the lateral thigh
- Causes: Weight gain or tight clothing
7. Infection and Bone Conditions
Osteomyelitis
- MRI is the best imaging modality
- Staphylococcus aureus is the most common organism
- In children: Typically affects the metaphysis
- Sickle cell disease: Associated with Salmonella
Psoas Abscess
- CT of the abdomen is the best imaging modality
- Drainage is usually successful
- Staphylococcus is a common organism
- Presents with fever and back or flank pain
8. Fracture Healing and Special Rules
Scaphoid Fractures
- Immobilize even if the initial X-ray is normal
- Repeat imaging in 7–10 days
- Proximal pole fractures require surgery
Open Fractures
- Definitive surgery is delayed until soft tissue recovery occurs
Ankle Injury Rule
- Perform X-ray if there is malleolar tenderness OR the patient cannot weight-bear for 4 steps
- Neurovascular compromise: Reduce immediately; do not delay for an X-ray
9. Bone Disease and Osteoporosis
Fragility Fracture
- In older patients (>50): DEXA is not needed if a fragility fracture is already present
QFracture / FRAX
- Tools used to guide the need for a DEXA scan
Osteoporotic Vertebral Fracture
- X-ray is the first-line investigation
10. Avascular Necrosis
Risk factors:
- Steroid use
- Chemotherapy
- Trauma
Best imaging:
- MRI of the hip
11. Other High-Yield Points
- Rib fractures: Managed conservatively with analgesia (critical for ventilation)
- Nerve blocks: Used if pain is uncontrolled
- Achilles rupture: Ultrasound is the first-line investigation
- Achilles tendonitis: Managed with rest, NSAIDs, and physiotherapy
- Charcot joint: Risk associated with alcoholic neuropathy
- Fat embolism: Triad of respiratory distress, neurological signs, and petechial rash
- Olecranon bursitis: Elbow swelling
- Baker’s cyst: Asymptomatic posterior knee swelling, often seen in children
