Paper

Type of the study

Comparison arm

Length of Follow up

Oguz1

Retrospective cohort

Surgery and follow up

2 years

Zhan3

Retrospective cohort

Surgery only

N/A

Phillip4

Retrospective cohort

Surgery only

N/A

Woolf6

Retrospective cohort

Surgery only

N/A

Wright7

Prospective cohort

Surgery and follow up

6-18 months