ePlasty: Vol. 17
Swan-Neck Deformity in Cerebral Palsy
Leyu Chiu, BA,a Nicholas S. Adams, MD,a,b and Paul A. Luce, MD, a,b,c

aMichigan State University College of Human Medicine, Grand Rapids, Mich; bPlastic and Reconstructive Surgery Residency, Grand Rapids Medical Education Partners, Grand Rapids, Mich; and cHand Surgery Centre; Grand Rapids, Mich


Correspondence: nickadams18@gmail.com
Keywords: swan-neck deformity, cerebral palsy, superficialis sling, extensor mechanism, lateral band

DESCRIPTION

A 34-year-old woman with cerebral palsy presented with swan-neck deformity of the left index and long fingers (Fig 1). The proximal interphalangeal (PIP) joint was found locked in hyperextension, but the patient could actively flex it if the hyperextension was corrected. The patient was treated with the flexor digitorum superficialis (FDS) sling procedure utilizing suture anchor support.

Figure 1. Preoperative view of the left hand demonstrating swan-neck deformity of the index finger.

QUESTIONS

1. What are the causes of swan-neck deformity?

2. Which major components of the extensor mechanism are involved in swan-neck deformity?

3. How are swan-neck deformities in cerebral pals .......