Main author (year) country

Obstetric predictors of successful

or unsuccessful MR

Maternal predictors of

successful or unsuccessful MR

Other predictors of

successful or unsuccessful MR

Shaffer

2006 USA

Labour induction and EDA were associated with higher rates of CD, but none of these factors increased the rate of failed rotation.

Multipara women and women under 35 years were more likely to have a successful MR.

No Data

Le Ray 2007

France

Attempted rotation before full dilatation tripled the risk of failure compared with rotation at full dilatation.

MR for failure to progress increased the risk of failure compared with prophylactic rotation.

No engagement (above station 0) increased the risk of failure.

Nulliparity and age > 35 were risks of failure.

Risk factors for failure increased with the number of attempts. 69.6% succeeded on the first occasion, but none of the fourth or fifth attempts were successful.

MR at night failed twice as often

compared with during the day

Sen 2013

Japan

MR has a better chance of success if the foetal head is at station 0, or further down.

There was no significant difference

between the successful rotation rate when MR and Posture change were compared.