MSK Flashcards
Osteochrondroma
- Benign
- bony outgrowth with cartilagenous cap
- local pain
Surgical removal
Endochondroma
- Benign
- intramedullary and metaphyseal cartilaginous tumour caused by failure of normal enchondral ossification
Curettage + bone graft
Simple Bone cyst
- benign
- asymptomatic, found on proximal humerus and femur.
Curettage + bone graft
Osteoid Osteoma
- benign
- small collection of immature bone surrounded by an intense sclerotic halo
- constant pain, worse at night
Self-resolving
NSAIDS
CT guided radiofrequency ablation
Brodie’s Abscess
- benign
- subacute osteomyelitis
Currettage
Osteosarcoma
- most common malignant bone tumour
- produces bone
- in knees of young patients
Chemotherapy
Ewings Sarcoma
- malignant tumour of primitive cells in the marrow
- “onion skin” appearance on XR
- fever, warm swelling, raised inflammatory markers
- common in teens
- chromosome 22, EWS gene
Radiotherapy
Chemotherapy
Surgery
Osteogenesis Imperfecta
- brittle bone disease
- blue sclera
- multiple fractures
- defect of type 1 collagen
- loss of hearing
Splintage
Traction
Stabilisation (Sofield procedure)
Achondroplasia
- short stature
- prominent forehead
- widened nose
- lax joints
- normal mental IQ
Deformity correction
Limb lengthening
Growth hormone therapy
Ehler-Danlos Syndrome
- abnormal elastic and collagen formation
- hypermobility
- vascular fragility (easily bruised)
Surgery (for dislocating joints)
Duchenne Muscular Dystrophy
- progressive muscle weakness in boys
- trendelenburg positive + Gowers sign positive
- resp and cardio failure related death in 20s
- raised CK
- X linked, dystrophin gene- calcium linked
Physiotherapy
Splintage and deformity correction
Surgery (for scoliosis)
Beckers Muscular Dystrophy
- similar to DMD but live into their 40s
Physiotherapy
Splintage and deformity correction
Surgery (for scoliosis)
Erb’s Palsy
- obstetric injury
- waiters tip posture
- C5-6 nerves
- associated with scoliosis, ptosis and horners syndrome
Physiotherapy
Nerve transfer
Subscapularis releases
Latissimus Dorsi Tendon Transfers
Klumpke’s Paralysis
- C8-T1 nerves
- paralysis of forearm and hand muscles
Physiotherapy
Developmental Dysplasia of the Hip (DDH)
- perinatal dislocation of the hip
- shortened limb
Pavlik Harness
Transient Synovitis
- inflammation of the synovium of a joint following a viral infection
Self-limiting
Rest + NSAIDS
Perthes Disease (Legg-Calvé-Perthes)
- idiopathic osteochondritis of the femoral head
- age 4-9, commonly boys
- pain, limb, Trendelenburg positive
- AVN of femoral head
Self-healing (18+ months)
NSAIDS
Physiotherapy (Swimming etc)
If non-healing: Osteotomy
Sipped Upper Femoral Epiphysis (SUFE)
- inferiorly slipped neck of femur due to growth plate not being able to cope with weight
- pain in knee, groin
- loss of internal rotation
Immediate internal fixation in-situ using screws to prevent slippage
Chronic slipping: Osteotomy
Talipes Equinovarus (Club Foot)
- feet are rotated medially and inferiorly
- congenital deformity
Ponseti technique splintage (4-6 week blocks)
Shoulder Impingement Syndrome
- tendons of the rotator cuff are compressed in the tight subacromial space during movement
- pain between 60-120 degrees on extension
NSAIDS, Analgesia, Physiotherapy
Subacromial steroid injection
Subacromial decompression
Tarsal Coalition
- abnormal bridge between calcaneus, navicular and talus
Splintage
Resistant: Surgery to remove connection
Rotator Cuff Tear
- pain and weakness in shoulder muscles
Surgery
Physiotherapy
Adhesive Capsulitis (Frozen Shoulder)
- pain and stiffness of shoulder between 40-60 degrees on abduction
- loss of external rotation
Self-limiting (18-24months)
Physiotherapy + NSAIDS
Steroid injections
MUA (Manipulation under anaesthetic)
Medial Epicondylitis (Golfer's Elbow) - painful and tender on flexion
Rest + NSAIDs
Steroid injection
Brace
Lateral Epicondylitis (Tennis Elbow) - painful and tender on extension
Rest + NSAIDs
Steroid injection
Brace
Tendonitis
- inflammation of a tendon
Self-limiting
Steroid/ anaesthetic injection
Torn tendon of biceps (Popeye’s deformity)
Self-healing
Rest
Sometimes: surgical repair
Dupuytren’s Contracture
- proliferation of type 3 collagen fibres
- begins in palm, works outwards
- thickens tendons in palm
- ring finger is most common
- common in alcoholics, Peyronie’s disease and diabetics
Fasciectomy
Fasciotomy
Needle aponeurotomy
Amputation of finger(s)
30 degrees is tolerated
Table top test= positive= treatment
Trigger Finger
- tendonitis of flexor tendon with nodular enlargement
- gets caught on A1 pulley
- clicking sensation on straightening finger
- 3rd/4th digit
Steroid injection
Surgery
Ganglion Cyst
- cyst at synovial joint
- transilluminates
Recurrent: Aspiration/ excision
Trochanteric Bursitis
- inflammation of a bursae at a joint
- caused by over activity
Rest, analgesia, NSAIDS, Physiotherapy
Anterior Cruciate Ligament Rupture
- painful sports injury
- twisting movement on planted feet with “pop”
- instant haemarthrosis and swelling
- positive Lachman’s test and anterior drawer test
ACL reconstruction/ tendon graft (using patellar tendon)
Rehab
1 year out of sport
Posterior Cruciate Ligament Rupture
- head on blow to the shin
- instability on going down stairs
- doesn’t swell as much as ACL
- posterior sublaxation of the tibia, positive posterior drawer test
Reconstruction
De Quervain’s Tenosynovitis
- spontaneous swelling and pain in the thumb
- common in middle-aged women, RA and pregnancy
NSAIDS
Splint/ rest
Steroid injection
Decompression surgery
Medial Collateral Ligament Rupture
- pain on medial stress
Knee brace
Lateral Collateral Ligament Rupture
- pain on lateral stress
- more unstable than MCL
Reconstruction
Patellar Instability
- due to direct blow/ twist
- usually dislocated laterally
- spontaneous reduction
Physiotherapy to strengthen quadriceps
Recurrent: Surgery and reconstructed medial palatofemoral ligament
Compartment Syndrome
- internal bleeding and exudate from fracture and injury
- rise in internal pressure
- compression of the venous system, causing congestion within muscle
- secondary ischaemia as arterial blood cannot supply the congested muscle
- severe pain
- nerves are compressed resulting in parasthesia and sensory loss
Emergency fasciotomy
Giant Cell Tumour
- benign
- locally destructive
- around knee and distal radius
- multinucleated giant cells
- “soap bubble” appearance on XR
Excision
Phenol/ bone cement/ liquid nitrogen
Fibrous Dysplasia
- common in adolescents, head and neck
- defective mineralisation
- affected bone is wider with thin cortices, can stress fracture
- shepherd’s crook deformity in the proximal femur
Biphosphonates- reduce pain
ORIF + cortical graft
High recurrence: Excision
Chondrosarcoma
- malignant
- cartilage producing bone tumour
- in their 40s, pelvis and femur
Surgery
Doesn’t respond to chemo/radio therapy
Myeloma
- a type of cancer that develops from cells in the bone marrow called plasma cells
- age 45-65
- recurrent infection
- deposition of AL amyloid
- weakness, back pain, bone pain,
Solitary plasmacytoma: radiotherapy
Multiple myeloma: chemotherapy
Lipoma
- a benign neoplastic proliferation of fat
Excision
Baker’s Cyst
- swelling of synovial fluid in the popliteal
Leave alone
Recurrence: Excision
Abscess
- cellulitis in wound / blocked sweat gland / cyst
Self-limiting
Incision + drainage
Implantation Dermoid
- Epithelial Cells in subcutaneous tissue
- Cyst with pseudocapsule and grey fluid
Excision
Angiosarcoma
- Malignant tumour of the blood vessels
Chemotherapy: Doxorubicin
Surgery