title: Secondary or new compensatory head posture after Anderson-Kestenbaum surgery.
abstract: OBJECTIVE
  To report clinical findings and surgical management of 4 patients with congenital nystagmus who presented with a new or reversal of their original horizontal compensatory head posture (CHP) after Anderson-Kestenbaum (A-K) surgery.
  
  
  METHODS
  Retrospective chart review.
  
  
  RESULTS
  All 4 patients demonstrated a 40°-45° horizontal face turn at the time of their initial surgery and 3 underwent 20% and one 30% augmented A-K surgery to correct the CHP. The new CHP or reversal of the original CHP was observed at a mean of 4 years (range 1-9 years) after the initial surgery. The reversed CHPs measured 20°, 40°, 20°, and 20°, respectively. These new or residual CHPs were surgically managed in 3 patients and an acceptable head position was achieved in all patients.
  
  
  CONCLUSIONS
  This series of patients points out the occurrence of secondary null points and reversed CHP after surgical correction of initial CHP.
authors: Department of Ophthalmology, Zonguldak Karaelmas University Faculty of Medicine, Zonguldak, Turkey. silaycanturk@gmail.com
authors: Silay Canturk
authors: SC
authors: Ugurbas
authors: John D
authors: JD
authors: Baker