Orthopaedics Flashcards
Adhesive capsulitis associations?
- DM = 20% may have an episode
- Middle aged females
Adhesive capsulitis features?
- External rotation largely affected
- Both active and passive movement affected
- Typically have a painful freezing phase, an adhesive phase, and a recovery phase
- Bilateral in 20%
- Episode lasts b/w 6m and 2y
Adhesive capsulitis Rx?
NSAIDs, physiotherapy, oral corticosteroids, intra-articular corticosteroids
Prolapsed lumbar disc mushkies?
- Produces clear dermatomal leg pain associated with neurological deficits
- Leg pain usually worse than back
- Pain often worse when sitting
L3 nerve root compression?
- Sensory loss over anterior thigh
- Weak quadriceps
- Reduced knee reflex
- Positive femoral nerve stretch test
L4 nerve root compression?
- Sensory loss anterior aspect of knee
- Weak quadriceps
- Reduced knee reflex
- Positive femoral stretch test
L5 nerve root compression?
- Sensory loss dorsum of foot
- Weakness in foot and big toe dorsiflexion
- Reflexes intact
- Positive sciatic nerve stretch test
S1 nerve root compression?
- Sensory loss posterolateral aspect of leg and lateral aspect of foot
- Weakness in foot plantar flexion
- Reduced ankle reflex
- Positive sciatic nerve stretch test
Prolapsed disc Rx?
- Analgesia, physiotherapy, exercises
- If symptoms persist e.g. 4-6 weeks then referral for consideration of MRI
Lower back pain red flags?
- Age < 20 y/o or > 50 y/o
- Hx of previous malignancy
- Night pain
- Hx of trauma
- Systemically unwell
Facet joint lower back pain mushkies?
- May be acute or chronic
- Pain worse in morning and on standing
- Pain over facets, pain is worse on extension of the back
Spinal stenosis mushkies?
- Usually gradual onset
- Unilateral or bilateral leg pain (with or without back pain), numbness, and weakness which is worse on walking. Resolves when sits down. Pain may be described as ‘aching’, ‘crawling
- Relieved by sitting down, leaning forwards and crouching down
- Examination often normal, requires MRI to confirm diagnosis
Specific causes of lower back pain?
- Facet joint
- Spinal stenosis
- Ankylosing spondylitis
- Peripheral arterial disease
What % of sciatica settles within 3m with conservative management?
90%
Lateral epicondylitis features?
- Pain and tenderness on lateral epicondyle
- Pain worse on resisted wrist extension with the elbow extended or supination of the forearm with the elbow extended
- Episodes typically last between 6 months and 2 years. Patients tend to have acute pain for 6-12 weeks
Medial epicondylitis features?
- Pain and tenderness on medial epicondyle
- Pain aggravated by wrist flexion and pronation
- Symptoms may be accompanied by numbness/tingling in the 4th and 5th finger due to ulnar nerve involvement
Radial tunnel syndrome?
- Most commonly due to compression of the posterior interosseous branch of the radial nerve. It is thought to be a result of overuse
- Symptoms similar to lateral epicondylitis but pain 4-5cm distal to lateral epicondyle, symptoms may be worsened by extending the elbow and pronating the forearm
Cubital tunnel syndrome?
- Due to compression of the ulnar nerve
- Initially intermittent tingling in the 4th and 5th finger
- May be worse when the elbow is resting on a firm surface or flexed for extended periods
- Later numbness in the 4th and 5th finger with associated weakness
Olecranon bursitis mushkies?
- Swelling over the posterior aspect of the elbow
- There may be associated pain, warmth and erythema. It typically affects middle-aged male patients.
Trigger finger definition?
Common condition associated with abnormal flexion of the digits. It is thought to be caused by a disparity between the size of the tendon and pulleys through which they pass. In simple terms the tendon becomes ‘stuck’ and cannot pass smoothly through the pulley.
Trigger finger associations?
- Women
- RhA
- DM
Trigger finger features?
- More common in thumb, middle, ring finger
- Initially stiffness and snapping ‘trigger’ when extending a flexed digit
- A nodule may be felt at the base of the affected finger
Trigger finger Rx?
- Steroid injection is successful in the majority of patients. A finger splint may be applied afterwards
- Surgery for those not responded to steroid injections
Who should be assessed for risk of fragility fractures?
- Women > 65
- Men > 75
- Younger with risk factors
2 tools to assess patients 10 year risk of developing a fracture?
FRAX or QFracture
FRAX mushkies?
- Estimates 10 year risk of fragility fracture
- 40-90 y/o
- International data
- Factors = age, sex, weight, height, previous fracture, parental fracture, current smoking, glucocorticoids, rheumatoid arthritis, secondary osteoporosis, alcohol intake
- Bone mineral density (BMD) is optional, but clearly improves the accuracy of the results. NICE recommend arranging a DEXA scan if FRAX (without BMD) shows an intermediate result
QFracture mushkies?
- Estimates 10 year risk of fragility fracture
- 30-99 y/o
- Includes larger group of RFs = Cardiovascular disease, history of falls, chronic liver disease, rheumatoid arthritis, type 2 diabetes and tricyclic antidepressants
When do you do DEXA rather than using prediction tool?
- Before starting treatment that may have rapid adverse effect
- <40 y/o who have a major risk factor
FRAX without BMD interpretation?
- Low risk = reassure and lifestyle advice
- Intermediate risk = BMD test
- High risk = Bone protection
FRAX with BMD interpretation?
- Reassure
- Consider treatment
- Strongly recommend treatment
When to repeat FRAX/QFracture?
- If the original calculated risk was in the region of the intervention threshold for a proposed treatment and only after a minimum of 2 years
- When there has been a change in the person’s risk factors
Most common cause of posterior heel pain?
Achilles tendon disorders
Risk factors for achilles tendon disorders?
- Quinolone use e.g. ciprofloxacin
- Hypercholesterolaemia (predisposes to tendon xanthomata)
Achilles tendinitis features?
- Gradual onset of posterior heel pain worse with activity
- Morning pain and stiffness common
Achilles tendinopathy Rx?
- Simple analgesia
- Reduction in precipitating activities
- Calf muscle eccentric exercises (self-directed/physio guided)
Achilles tendon rupture clinical examination?
Simmond’s triad
1. Altered angle of declination
2. Palpable gap in tendon
3. Calf squeeze
Achilles tendon rupture Ix?
US
Achilles tendon rupture Rx?
Refer to orthopaedics
Discitis definition?
Infection in the intervertebral space
Discitis features?
- Back pain
- Pyrexia, rigors, sepsis
- Neuro = changing lower limb neurology if epidural abscess develops
Discitis features?
- Back pain
- Pyrexia, rigors, sepsis
- Neuro = changing lower limb neurology if epidural abscess develops
Discitis causes?
- Bacterial = S. aureus most common
- Viral
- TB
- Aseptic
Discitis Dx?
- MRI has highest sensitivity
- CT guided biopsy may be required to guide antimicrobial Rx
Discitis Rx?
- 6-8wks IV Abx
Discitis complications?
- Sepsis
- Epidural abscess
Discitis further Ix?
- TTE/TOE for endocarditis
Positive scarf test?
Acromioclavicular degeneration
Positive scarf test?
Acromioclavicular degeneration
Chondromalacia patellae AKA?
Patellofemoral pain syndrome
Patellofemoral pain syndrome mushkies?
- Softening of the cartilage of the patella
- Common in teenage girls
- Characteristically anterior knee pain on walking up and down stairs and rising from prolonged sitting
- Usually responds to physiotherapy
Infrapatellar bursitis?
Clergyman’s knee, associating with kneeling
Prepatellar bursitis?
Housemaid’s knee, associated with more upright kneeling
ACL injury mushkies?
- Twisting of knee - popping noise may be noted
- Rapid onset of knee effusion
- Positive draw test
PCL injury mushkies?
- May be caused by anterior force applied to the proximal tibia (e.g. knee hitting dashboard during car accident)
Collateral ligament injury?
- Tenderness over the affected ligament
- Knee effusion may be seen
Meniscal lesion?
- May be caused by twisting of knee
- Locking and giving-way are common features
- Tender joint lines
FOOSH anatomical snuffbox pain?
Scaphoid fracture
Morning stiffness > 2 hours?
May be inflammatory arthritis
Hip OA RFs?
- Increasing age
- Female
- Obesity
- DDH
Hip OA mushkies?
- Chronic groin ache following exercise and relieved by rest
- Oxford Hip score to assess severity
- Red flags suggesting alternative cause = rest pain, night pain, morning stiffness
Hip OA Ix?
- If features typical, clinical Dx is ok
- Otherwise, plain XRs
Hip OA Rx?
- Oral analgesia
- Intra-articular injections: short term benefit
- THR definitive Rx
THR complications?
- Perioperative = VTE, fracture, nerve injury, infection
- Leg length discrepancy
- Posterior dislocation = during extremes of hip flexion, presents with clunk + pain + inability to weight bear, internal rotation and shortening of leg
- Aseptic loosening (most common reason for revision)
- Prosthetic joint infection
Myxoid/mucoid cyst?
Benign ganglion cysts usually found on the distal, dorsal aspect of the finger. There is usually osteoarthritis in the surrounding joint. They are more common in middle-aged women.
Ottawa ankle rules?
Ankle XR required only if there is pain in the malleolar zone and any 1 of the following:
1. Bony tenderness at the lateral malleolar zone (from the tip of the lateral malleolus to include the lower 6 cm of posterior border of the fibula)
2. Bony tenderness at the medial malleolar zone (from the tip of the medial malleolus to the lower 6 cm of the posterior border of the tibia)
3. Inability to walk four weight bearing steps immediately after the injury and in the emergency department
Cubital tunnel syndrome features?
Cubital tunnel syndrome occurs due to compression of the ulnar nerve as it passes through the cubital tunnel.
1. Tingling and numbness of 4th and 5th finger which starts off intermittent then becomes constant
2. Over time pts may also develop weakness and muscle wasting
3. Pain worse on leaning on affected elbow
4. Often a Hx of osteoarthritis or prior trauma to the area
Cubital tunnel syndrome Ix?
Dx usually clinical, however in selected cases nerve conduction studies may be used
Cubital tunnel syndrome Rx?
- Avoid aggravating activity
- Physiotherapy
- Steroid injections
- Surgery in resistant cases
Osteomyelitis classification?
- Haematogenous
- Non-haematogenous