Which instrument was specifically designed with a sliding lock and minimal pelvic curvature to allow safe rotation of the fetal head from occipitotransverse or occipitoposterior position at mid-cavity?
- A Kielland forceps ✓
- B Simpson forceps
- C Wrigley forceps
- D Piper forceps
Correct answer: A. Kielland forceps
Explanation
Kielland forceps have a sliding lock that permits correction of asynclitism and negligible pelvic curvature so the blades can be applied at mid-cavity and rotated to occiputanterior. Simpson forceps have a pronounced pelvic curve and are for traction only, Wrigley are short outlet forceps, and Piper forceps are long-shanked instruments for the aftercoming head in breech delivery.
Reference: Williams Obstetrics, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.