technique

Ilizarov

Ilizarov Frame Proximal Tibia Clinical Photo

 

Indications

 

Poor soft tissues

- prohibit ORIF

 

Non union

 

Infected non uniion

 

Malunion / deformity

 

Bone loss / bone transport / LLD

 

Concept

 

Platelet Rich Plasma

Definition

 

Platelet rich plasma

 

Concept

 

2 main components

 

1.  Platelets

- contain PDGF, TGF, VEGF

 

2.  Growth factors

- ILGF

- FGF

 

Formed from the separation of whole blood into plasma and RBC

- separation usually achieved with centrifugation

 

Platelet concentration

Principles of Biopsy

Aims

 

1.  Provide representative sample

- to determine whether benign or malignant

- to determine cell line

- to grade lesion

 

2.  Not compromise definitive treatment

 

Timing

 

Last step in evaluation / after staging

 

Don't perform definitive procedure immediately after biopsy unless

- pre-operative & Xray information characteristic

Mosaicplasty

Harvest site

 

Option 1

- lateral and medial aspect femoral trochlea

 

Option 2

- intercondylar notch

 

Mosaicplasty Harvest Site

 

Option 3

- allograft

- can take larger grafts without donor site risk

 

Size

 

TSA Technique

TSR APTSR Lateral

 

Goal

- head that translates 50% in all directions

- allows 30o ER with arm at side

- stable posteriorly

 

Pre-Op 

- antibiotics

- consider specific Propionobacterium cover