MSK & Rheum Flashcards
Give general fracture and open fracture tx
General:
1. Immobilise fracture including proximal and distal joints
2. Document neurovascular status before and after reduction and immobilisation
Ensure tetanus prophylaxis
Open:
1. IV broad spectrum abx 2. Tetanus prophylaxis 3. Thorough debridement and lavage
Tx for displaced and undisplaced NOF fracture. Extracapsular?
Pt v unwell intracapsular - hemiarthroplasty
Undisplaced - internal fixation
Displaced - below 70 internal fixation. Above 70 total hip
Extracapsular - dynamic hip screw
S&S of femur fracture?
- Pain
* Shortened and externally rotated leg
Early S&S of compartment syndrome?
• EXTREME Pain or tenderness ○ Worse on passive movement ○ Worsening despite analgesia • Swelling Parasthesia
Investigation for compartment syndrome. results?
• Measure intracompartmental pressure. >20mmHg is abnormal. >40mmHg is diagnostic.
RFs of compartment syndrome?
• Occurs following fractures. Typically suprachondylar and tibial shaft injuries.
Be wary also of tight casts or splints or DVTs
Tx for displaced and non displaced humeral fracture?
• Significantly displaced - ORIF
• Non displaced - Collar and cuff for 3 wks followed by physio
Assess neurovascular status
RFs for slipped upper femoral epiphysis?
• Obesity
• Age 11-15 most common
M 2:1 F
tx for slipped upper femoral epiphysis
• External fixation or Open reduction and pinning AS IS. Attempts to move it back could cause further damage.
Emergency as could lead to avascular necrosis of head of femur
Name the types of salter harris fractures
S - Slip A - Above physis L - Lower. Below physis in the epiphysis TE - Through everything. R - Rammed (crushed)
Perthes xray?
Flattened femoral head
S&S of perthes?
• Hip, knee or groin pain exacerbated by internal rotation
• Limp
Leg length disparity
Tx of perthes
- Minimising damage while disease runs course
* Traction of leg using brace, physiotherapy.
Investigation of congenital hip dysplasia?
• Barlow maneuver (adduct hip and push knee) and Ortolani maneuver (abduct hip and push knee) - barlow dislocates and Ortolani relocates. Will hear clunking
Limb length inequality in 1 sided hip dysplasia.
Tx of Congenital hip dysplasia
pavlik harness
Osteomyelitis investigation
Bloods - WCC
CT - cortical destruction with lytic centre
MRI - edema
Bone biopsy
ADR of methotrexate
• Myelosuppression
• Hepatotoxic
PULMONARY FIBROSIS
ADR of sulfasalazine
• Rashes
• Oligospermia
ILD
ADR of leflunomide
• ILD
• HTN
Hepatotoxic
ADR of infliximab
Reactivation of TB
Bisphosphonate ADRs
• Oeseophageal ulcers
Osteonecrosis of jaw
OA S&S on hands
Bouchons nodes - proximal IPJ
Heberdens nodes - distal IPJ
OA investigations
Xray - LOSS • L - Loss of joint space • O - Osteophytes forming at joint margins • S - Subchondral sclerosis S - Subchondral cysts
OA tx analgesics
1st line Paracetemol + topical NSAIDs NSAIDs for Hand and knee OA only
2nd line Oral NSAIDs, opioids, capsaicin cream, intra-articular corticosteroids PPI co-prescribed with NSAIDs
3rd line Supports and braces, shock absorbing insoles
4th line Joint replacement
OA tx post operative
- LMWH for 4 weeks after hip
- Pts need physio and home exercises
- Crutches and walking sticks used for up to 6 wks
OA general advice
• Weight loss
Muscle strengthening + aerobic fitness
How to avoid dislocation in hip replacement?
• Avoid flexing hip >90 degrees
• Avoid low chairs
• Don’t cross legs
Sleep on back for first 6 wks
Indications for hip replacement in OA?
Conservative tried, pt still in pain.
RA S&S
• Swollen painful joints in hands and feet
• Morning stiffness improves with use
• Bilateral symptoms over a few months
• Systemic upset
Positive squeeze test - discomfort on squeezing across joint
RA blood tests
• Rheumatoid Factor (RF) detected by Rose-Waaler test. RF not specific to RA.
Anti-CCP antibody
RA xray findings
• L - Loss of joint space
• E - Erosions periarticular
• S - Soft tissue swelling
S - Soft bones, osteopenia
Tx of RA
1st line Methotrexate + 1 other DMARD
+ Prednisolone
2nd line - If 2 DMARDs don’t work + TNF inhibitor eg infliximab
DMARDs - sulfasalazine, leflunomide
RA and pregnancy Tx
Use sulfasalazine. Other drugs not safe
Give lung, ocular, heart problems of RA
Occular:
• Keratoconjunctivitis sicca (conjunctiva dryness)
• Episcleritis (erythema)
Scleritis (erythema and pain)
Lung problems: • PULMONARY FIBROSIS • Pleural effusion • Pleurisy INFECTION DUE TO IMMUNOSUPPRESSION
Heart problems:
IHD
Give 3 spondylarthropathies
• Psoriatic arthritis
• Reactive arthritis
Ankylosing spondylitis
Patho of ankylosing spondylitis?
• HLA-B27
• Rheumatic arthritis affecting joints of spine
• Occasionally affects shoulder or hips
Affects males aged 20-30 typically.
investigation of ankylosing spondylitis
• Xray of sacroiliac joints:
○ Syndesmophytes - ossification of outer fibers of annulus fibrosis
○ Squaring of lumbar vertebrae
Sacroiliitis - Sclerosis, subchondral erosions
Tx of ankylosing sponylitis?
• Regular exercise
• Physio
• NSAIDs
Last line - TNF inhibitor eg infliximab
S&S of ankylosing spondylitis?
• Lower back pain and stiffness with insidious onset
• Worse in morning and improves with exercise
• Pain at night improves on getting up
• Reduced lateral and forward flexion (Schobers test)
Reduced chest expansion
Patho of reactive arthritis
• HLA-B27
• Arthritis that develops in response to an infection in another part of the body
• Part of Reiter’s syndrome - triad of urethritis, conjunctivitis, and arthritis:
○ “Reiter cant see, pee, or climb a tree”
• Can be post-dysenteric (gastroenteritis resulting in diarrhoea with blood) or post STI
What is Reiters syndrome
Part of Reiter’s syndrome - triad of urethritis, conjunctivitis, and arthritis:
○ “Reiter cant see, pee, or climb a tree”
Organisms of reactive arthritis
• Post-dysentry - Shigella flexneri, Salmonella enteritidis
Post-STI - Chlamydia trachomatis
Tx of reactive arthritis
- Symptomatic - Analgesia, NSAIDs, Intra articular steroids
* Persistent - sulfasalazine and methotrexate
Patho of soriatic arthropathy
• HLA-B27 associated
Arthritis developing in people with psoriasis
Tx of psoriatic arthropathy
• Treat as RA
Better prognosis
S&S of psoriatic artrhopathy
• Pain, swelling, stiff joint(s)
• Typically symmetrical polyarthritis OR asymmetrical oligoarthritis
• Can affect fingers, nails (pitting or separation), and skin
Psoriasis over extensor regions
Poly vs oligoarthritis?
• Oligo arthritis - 2-4 joints
Polyarthritis - 5+ joints
S&S septic arthritis
• Acutely inflamed joint
Extremely Painful to move
RFs of septic arthritis
• Pre-existing joint disease esp RA
• DM
• Immunosuppression
IVDU
Important thing to remember with septic arthritis?
ASK YOURSELF HOW DID THE ORGANISM GET IN??
Investigations for septic arthritis?
• Urgent joint fluid aspirate + culture and microscopy
S&S of SLE
• Fatigue
• Fevers
• Mouth ulcers
Lymphadenopathy