Hip Fractures and other conditions Dr P Mushayavanhu
Hip fractures Femoral head to 5cm below lesser trochanter Intracapsular vs extracapsular
Epidemiology Bimodal age distribution Low energy- old patients Whites > blacks Women > men High energy Young patients Most expensive fracture to treat on per person basis
Anatomy
Applied anatomy Intracapsular fracture High risk of femoral head avascular necrosis Extracapscular Will heal, rich blood supply
Risk factors Non modifiable Increasing age Female sex Family history of osteoporotic fractures Ethnic origin(Caucasians)
Risk factors Risk factors for falls vs Muscle weakness Abnormal gait or balance/neurological disorders Medications- sedative /cardiovascular side effects Poor sight Risk factors for change in bone mass
Clinical features Low energy fall, elderly women High energy in the young Repetitive loading for stress fractures Hip pain and inability to walk
Clinical features Associated injuries Cormobidities/ medication Lifestyle- alcohol/smoking
Clinical features Affected leg shorter Externally rotated Tender at the groin Hip motion painful Usually neurovascularly intact distally
Imaging X Rays AP Lateral Full length femur MRI/CT scan
Intracapsular Fracture Classification Anatomical Subcapital Transcervical Basicervical Garden Pauwels AO
Garden classification
Extracapsular fractures Pertrochanteric Subtrochanteric fractures Occur from between lesser trochanter & 5cm below it
Treatment Non operative vs operative Non operative Limited role High risk surgical patients with minimal pain
Options for fixation Cannulated screws Dynamic hip screw
Cannulated screws
Dynamic hip screw
Options for replacement Displaced fractures in the physiologically old >65 Hemiarthroplasty vs total hip arthroplasty Unipolar vs bipolar Hemiarthroplasty Limited role For the physiologically elderly patients
Austin Moore Prosthesis
Thompson Prosthesis
Bipolar Hemiarthroplasty
Total hip Arthroplasty
Extracapsular fractures Fix Role for non op Options DHS Intramedullary nail eg Cephalomedullary nail Fixed angled blade plate