Table 2

Coleman methodology score

Components of the Coleman scoreIndividual components (score)Bitar et al Christiansen et al Camanho et al Petri et al
Study size (10)>60 (10)10
41–60 (7)7
20–40 (4)44
<20, not stated (0)
Mean duration of follow-up (5)>24 (5)5555
12–24 (2)
<12, not stated or unclear (0)
Number of different surgical procedures included in each reported outcome (10)One surgical procedure only (10)10101010
More than one surgical procedure but >90% undergoing one procedure (7)
Not stated, unclear or <90% undergoing one procedure (0)
Type of studyRandomised control study (15)15151515
Prospective cohort study (10)
Retrospective study (0)
Diagnostic certaintyIn all (5)5555
In >80%
In <80%
Description of surgical procedureAdequate (5)5555
Fair (3)
Inadequate (0)
Description of postoperative rehabilitationWell described, >80% complying (10)10101010
Well described with 60%–80% complying (5)
Protocol reported or <60%–80% complying (0)
Outcome measuresOutcome measures clearly defined (2)2222
Timing of outcome assessment clearly stated (eg, at best outcome after surgery or at follow-up) (2)2222
Use of outcome criteria that has reported good reliability (3)3333
Use of outcome with good sensitivity (3)3333
Outcome assessmentSubject recruited (5)5555
Investigator independent of surgeon (4)4444
Written assessment (3)3333
Completion of assessment by subjects themselves with minimal investigators assistance (3)
Selection processSelection criteria reported and unbiased (5)5555
Recruitment rate reported: >80% or <80% (5)5555
Eligible subjects not included in the study satisfactorily accounted for or 100% recruitment (5)5
Total94928686