Definition
Greek for bent finger in sagittal plane
- fixed flexion deformity of PIPJ
- usually little finger
Epidemiology
Atraumatic
<1% of population
- strong familial predisposition
- 60% bilateral
80% progress - worsens with adolescent growth spurt
Etiology
Tight FDS / Abnormal insertion of lumbricals into flexor sheath
Leads to
- contracted volar plate
- tight collateral ligaments
- joint deformity / subluxation
- volar skin deficency
Xray
Head of P1 has bullet shape
PIPJ is subluxed
Nonoperative management
Splinting
Stretching
Operative management
Indications
Progressive deformity
> 60° fixed flexion deformity and functional disability
Technique
Release all tight volar structures
- skin / FDS / volar plate / capsule
- +/- FDS transfer to the extensor hood
- +/- extension osteotomy / dorsal closing wedge
Corain et al J Hand Surg Asian Pac 2022
- 42 camptodactyly released surgically
- good / excellent results in 81%