Catagni classified pseudarthroses (fracture with nonunion) of the tibia based on the clinical and radiographic findings. The author is from the Hospital of Lecco in Lecco, Italy
Patient selection: nonunion of a tibial fracture
Parameters:
(1) length of the bone loss between the proximal and distal tibial segments in centimeters
(2) mobility of the fragments
(3) deformity
(4) bony defect
(5) shortening
|
Length of Bone Loss |
Type |
|
< 1 cm |
A |
|
>= 1 cm |
B |
|
Length of Bone Loss |
Mobility |
Deformity |
Type |
|
< 1 cm |
lax (mobile) |
NA |
A1 |
|
< 1 cm |
nonmobile |
none |
A2-1 |
|
< 1 cm |
nonmobile |
present |
A2-2 |
|
Length of Bone Loss |
Bony Defect |
Shortening |
Type |
|
>= 1 cm |
present |
none |
B1 |
|
>= 1 cm |
none |
present |
B2 |
|
>= 1 cm |
present |
present |
B3 |
Specialty: Surgery, orthopedic, Emergency Medicine, Critical Care, Surgery, general
