technique

Indications for THA

Osteoarthritis

- abnormal morphology

- loss of head neck offset

- bony impingement on acetabulum

AVN

Location

Krudwig et al KSSTA 2004

- 85 intra-articular ganglions

- 49 ACL, 16 PCL

- 12 from anterior horn meniscus, 3 posterior horn meniscus

- 3 from fat pad

Cruciate ligament ganglion

Technique

Surgical technique PDF using trans-septal portal

Indications

Deformity correction

Indications

Poor soft tissues

- prohibit ORIF

Non union

Infected non uniion

Malunion / deformity

Bone loss / bone transport / LLD

Concept

https://www.vumedi.com/video/arthroscopic-double-row-subscapularis-repa…

Technique

- extra-articular

Portals

- posterior portal very lateral so can see anterior aspect subacromial space

- port of Wilminton at anterolateral acromion to access SSC

- anterior portal in normal position, slightly more lateral so becomes working portal

Indications

Engaging Hill Sachs

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

AO Classification

Types

1. Supracondylar

2. Unicondylar

3. Intracondylar

Xrays

Supracondylar / Extra-condylar

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

Harvest site

Option 1

- lateral and medial aspect femoral trochlea

Option 2

- intercondylar notch

Option 3

- allograft

- can take larger grafts without donor site risk

Size