Intra-capsular Neck Of
Femur Fractures
Sheweidin AZIZ – Sep 2015
Aim
1. Background
2. Anatomy + Patho-anatomy
3. Predisposing factors
4. Mechanism of injury
5. Clinical presentation/Radiological investigation
6. Classification
7. Aims of treatment
8. Management
9. Complications
Background
About 70-75,000 hip fractures per year in UK (10/1000)
Average age 77 years
Commonest cause of admission to orthopaedic wards
Usually fragility fracture
Background
Lifetime risk 15% ♀ and 5% ♂
High mortality rate ~10% in 30 days and up to30% in a
year
Annual cost of over £2 billion
About 10-20% admitted from home will move to
institutional care
Anatomy
Borders x2
Surfaces x2
Calcar
Anatomy
Described by Crock
Extra-capsular ring
Retinacular
Ligamentun Teres
Anatomy
Predisposing factors
1. Loss of bone strength
2. Loss of local shock absorbers
3. Reduction in protective responses
4. Increased risk of falls
Mechanism of injury
Low Energy
Direct
Indirect
High Energy
Cyclical Loading Stress fracture
Clinical Presentation
History
Injury
Predisposing factors
Inability to weight bear
Clinical examination
Shortening and external rotation
Inability to SLR
Groin tenderness
Clinical Presentation
Radiological investigations
Plain radiograph (Antero-posterior and Lateral)
MRI
CT
Classification
Anatomical Location
Garden
Pauwels
Anatomical Location
Garden
Garden
Pauwels
Goals of treatment
Patient comfort
Restore hip function / independence
Reduce length of immobility
Management - Multidisciplinary team
1. General
1. Identify +/- treat cause of injury
2. Secondary prevention
3. Rehabilitation
2. Specific
1. Management of hip fracture: Conservative/Operative
Specific management
1. Analgesia
2. Hydration
3. Investigations (Bloods, CXR, ECG, Echo .. etc)
4. Identify and treat co-morbidities to avoid delay
Operative management
1. Internal Fixation
1. Cannulated screws
2. Dynamic Hip screws
2. Arthroplasty
1. Cemented Thompson
2. Cemented bipolar
3. Uncemented Austin Moore
4. Total hip Replacement
Cannulated Screws
Dynamic Hip Screw
Cemented Thompsons
Cemented bipolar
Austin Moore
Total Hip Replacement
Complications - General
 VTE / PE
 Infections (UTI / LRTI / Wound)
 Bed sores
 Osteoarthritis
 Avscaulr necrosis
 Non union
Complications – Arthroplasty
Revision surgery 10%
Higher mortality
Longer hospital stay
Dislocation
Complications – Arthroplasty
Leg length discrepancy
Acetabular erosion
Implant infection
Fracture around prosthesis
Expensive
Complications – Internal Fixation
Non union 20-30%
Avascular necrosis 10-20%
Revision surgery 25-30%
Post Operative care
1. Check Hb / U&Es
2. VTE prophylaxis
3. Rehabilitation with physio - Mobilise Full weight bearing
4. +/- check X-Rays
Further reading
1. Orthopaedic Trauma Association Classification
2. BOAST guidelines on Fragility Hip Fractures
3. National Hip Fracture Database
4. NICE clinical guidance – Management of hip fractures in
adults
QUESTIONS

Intra capsular neck of femur fractures