infection
Management


Tsukayama Classification
Complications
Complications
Subscapularis failure
Rotator cuff failure
Instability
Infection
Periprosthetic fracture
Aseptic loosening
Neurological injury
Incidence
Parada et al. J Should Elbow Surg 2021
- 2224 aTSA complication rate 11%, revision rate 5.6%
Complications
Aetiology
Undisplaced wrist fracture
- interrupts blood supply at a watershed area
- between 3 weeks and 3 months post injry
Spontaneous
- RA / SLE
Site
Just distal to extensor retinaculum at Lister's tubercle
Examination
Place hand flat on table
- lift only thumb
Management
Complications
General
- haemarthrosis
- DVT
- infection

Septic Arthritis


Incidence
Complications
1. Infection



Peters et al J Arthroplasty 2009
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
Prevention
Preoperative
Identify high risk groups
- immunocompromised
- diabetes
- RA
- malnutrition
Urine screen
- check for and treat UTi
Groin, nose, axilla swabs
- for MRSA
- if positive, treat
- need 3 consecutive free swabs
3 x chlorhexidine preoperative showers in 8 hours
Admit day of surgery
- check skin for lesions

