Data Selection & Collection Process
All titles identified by the initial literature search were
independently reviewed by two authors (LML and PDC) and the abstract
and/or full text was reviewed where required. Data were extracted from
papers that met the inclusion criteria by two authors. Extracted data
included study type, sample size, surgical technique, study population
characteristics, follow-up period, outcome measures, complications of
surgery, and symptom outcomes. Any differences in extracted data were
discussed and any disagreements resolved by the senior author (DE).