Navicular fractures

Types

 

1.  Dorsal lip fracture / Tuberosity fracture

- avulsion fractures

- most common

- beware avulsion T post

 

2.  Body fracture

 

3.  Stress Fractures

 

Body Fractures

 

Types

 

A.  Transverse fracture in coronal plane

B.  Transverse from dorsolateral to plantarmedial

C.  Central or lateral comminution

 

Navicular fractureNavicular fracture 2

 

Displaced Navicular FractureDisplaced Navicular Fracture

 

Management

 

ORIF if displaced

- aim to restore TNJ

- 70% satisfactory reduction

 

Complications

 

Stiffness

- lose some inversion / eversion as part of STJ

 

OA

 

AVN 30%

 

Navicular AVNNavicular AVN

 

4. Stress fracture

 

History

 

Pain

No distinct trauma

 

Xray

 

Navicular Stress Fracture

 

CT

 

Navicular Fracture CT

 

Issue

 

Can go on to displaced nonunion

 

Navicular Stress Fracture DisplacingNavicular Stress Fracture Nonunion

 

Management

 

1.  Strict NWB in boot

- consider bone stimulator

 

2.  ORIF and graft

- if >50% of width of bone and failure of non-operative management

 

Case 1

 

Navicular Stress Fracture UnionNavicular ORIFNavicular ORIF Union

 

Case 2

 

Navicular Fracture APNavicular Fracture Lateral

 

Navicular Fracture CTNavicular Fracture CT2Navicular Fracture CT3

 

Navicular Fracture ORIFNavicular ORIF 1Navicular ORIF 2