technique

C Approach and Implant Removal

Pre-operative Planning


CT / quantify bone loss
X match 4 units
Cell saver
Anaesthetic review
Bone graft (cortical, cancellous)
Component removal gear

- extraction gear for femur / liners

- cement removers for cemented femur

- curved osteotomes for cemented cup

- X-plant for uncemented cup
Revision long stem femoral implants
Revision acetabular implants including cages

 

BPTB Allograft

Graft Preparation

 

BPTB Allograft Initial

 

Defrost

- in 2 litres normal saline

- can add vancomycin powder

 

Choose which part of graft to use

- usually central third

- can take either side

- try to leave sufficient graft in case of disasters

- i.e. dropping or rupturing graft

 

MRI

Creation of images

 

Placing patient into a strong magnetic field

- 30 000 x stronger than the earth's magnetic field

 

Stronger magnets, better images, shorter times

- 1.5 Tesla 

- 3 Telsa

 

The nuclei of elements with odd numbers of protons line up

- i.e. hydrogen atoms

- hydrogen is plentiful in fat and water

 

A radiofrequency is then applied, exciting the protons

Arthroscopic Acromioplasty

Technique

 

Position

- beach chair / lateral

- water pump, adrenaline in bags

- block pre-op useful as easier to control BP

- often inject the SAD with combination of LA with A prior to scope

 

Posterior portal

- 2 cm inferior, 1 cm medial

- soft spot between IS and Tm

 

Enter subacromial space

- sweep to clear adhesion

- saline on pump at 30 - 40 - 50

Open Acromioplasty

Described by Neer / modified by Rockwood

 

Two Step Acromioplasty

 

1.  Anterior acromioplasty

- resect anterior acromion back to ACJ

- prevent impingement in flexion

 

2.  Resect anteroinferior acromion 

 

Technique

 

Position

- beach chair 

- mark anatomy

- limb draped free

 

Arthroscopic SLAP Repair

Shoulder Scope SLAP 2

 

Technique

 

1. Establish portals

 

A.  Posterior portal for viewing

 

B.  Anterior portal

- need to keep low and away from biceps, otherwise difficult to get around biceps

- for suture passage, if in combination with bankart repair often use AI portal instead of AS