signs
Hypocalcaemia
Signs
Fall in level promotes tetanus
Chvostek sign
- tapping masseter muscle induces spasm
Trousseau Sign
- flexion of thumb & wrist with extension of fingers
Carpopedal Spasm
ECG
Prolonged QT interval on ECG
Causes
1. Vit D Deficiency
Congenital vertical talus
Definition
Rockerbottom foot / Persian Slipper Foot
Epidemiology
Uncommon
50% bilateral
Doesn't delay walking
- may present in toddler with callus under talus head
Associations
Congenital anomalies
- CNS disorders
- spina bifida & diastematomyelia ~10%
- arthrogryposis
- neurofibromatosis
CRPS
Definition
Chronic Regional Pain Syndrome
CRPS 1
Sympathetically mediated pain syndrome
- excessive or exaggerated response of extremity to injury, surgery or disease
Manifested by
- intense or unduly prolonged pain
- vasomotor disturbances
- trophic changes
- delayed functional recovery
CRPS 2
Management
Incidence
Knee > Hip
- superficial position
- limited cover of well vascularised muscle
- watershed area of skin blood supply anterior to the skin incision
- much increased in fully constrained prosthesis
Ideal < 1%
Risk Factors
Increased with
- revision
- prior infection
- RA / Psoriatic arthropathy
- DM
Intertrochanteric Fractures
Definition
Fracture which extends between the trochanters of the proximal femur
- lower limit is inferior border of lesser tuberosity
Anatomy
Extra capsular / well vascularized
The key to stability is the posteromedial cortex
Metatarsus adductus
Definition
Metatarsus varus
- adduction of the forefoot at the TMTJ
Intrauterine positional deformity / packaging defect
Epidemiology
1:1000
- M = F
- bilateral in 50%
- 10% have CDH
Aetiology
Unclear
Theories
- intrauterine positioning defect
- prone nursing
Lumbar Scheuermann
Definition
Different entity to thoracic Scheuermann's
- end plate abnormal but no kyphosis or wedging
Natural History
Self - limiting condition
Epidemiology
Young athlete / labourer
Symptoms
Adolescent who presents with low grade levels of low back pain
- more pain than thoracic
Signs

