loosening

Complications

Intraoperative glenoid fracture

 

Avoid by

- careful reaming and drilling osteoporotic bone

 

Management

1.  Rotate metaglene

- use locking screws to stabilise glenoid

2.  PA screws

- cannulated 4.0 mm screws

- inserted percutaneously from posterior

 

Haematomas

 

Great deal of dead space is created

- always use a drain

Uncemented femur

GoalTHR Uncemented

 

Initial press fit

- implant geometry fits the cortical bone in the proximal femur

- good initial mechanical stability

 

Biological fixation for success

- good press fit

- minimal micromotion

- bony or fibrous tissue ingrowth or ongrowth

 

Resurfacing

ConceptBirmingham Hip Resurfacing

 

Femur

- removal of femoral head cartilage

- resurfacing with metal

- cemented / uncemented

 

Acetabulum

- standard technique

 

Bearing surface

- metal on metal

 

Indications

 

Relatively young man (40 - 50)

OA