Amputation and Arthrodesis Flashcards
What is: a surgical treatment leading to joint fusion?
Arthrodesis
What is: a non-surgical condition leading to joint fusion?
Ankylosis
What is: the removal of an appendage, or a portion thereof?
Amputation
What are the 4 major indications for arthrodesis?
- Irreparable fracture of the joint
- A chronically unstable joint
- Chronic, severe degenerative joint disease
- Neurologic injury causing partial paralysis of the limb
Which joint is NOT amenable to arthrodesis?
Hip joint
What are 4 alternatives to arthrodesis?
- Medical management
- Total joint replacement
- Excision arthoplasty
- Amputation
What are the 4 major principles to a successful arthrodesis?
- Articular cartilage removal
- Bone graft
- Joint fusion at an anatomic standing angle
- Rigid fixation
For a successful arthrodesis, you’ll want to remove the articular cartilage and expose the ___ ___.
Subchondral bone
Bone grafts are used in arthrodesis to speed the formation of what?
Callus
What is the advantage to callus formation in an arthrodesis joint?
Decrease of implant fatigue and implant failure
Which of the following stimulates bone healing and inducting other cells to come into the area: osteogenesis, osteoconduction, osteoinduction, osteopromotion?
ALL OF THE ABOVE
What are the 4 sources from which you can get an autogenous cancellous bone graft?
- Proximal humerus
- Distal femur
- Proximal tibia
- Ilial wing
What is the name of the instrument used intraoperatively to measure the anatomic standing angle of a joint?
Goniometer
True or False: The arthrodesis will not heal if it is not rigidly fixed.
TRUE
Following an amputation, for how long should you support that limb with external coaptation?
6-8 weeks