Intervention Protocol

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Unicompartmental arthroplasty for knee osteoarthritis

  1. Brigitte M Jolles1,*,
  2. Antoine F Eudier1,
  3. Estelle Lécureux2

Editorial Group: Cochrane Musculoskeletal Group

Published Online: 5 JUN 2013

DOI: 10.1002/14651858.CD010563


How to Cite

Jolles BM, Eudier AF, Lécureux E. Unicompartmental arthroplasty for knee osteoarthritis (Protocol). Cochrane Database of Systematic Reviews 2013, Issue 6. Art. No.: CD010563. DOI: 10.1002/14651858.CD010563.

Author Information

  1. 1

    Centre Hospitalier Universitaire Vaudois and University of Lausanne, Department of Orthopaedic Surgery and Traumatology, Lausanne, Switzerland

  2. 2

    Centre Hospitalier Universitaire Vaudois / University of Lausanne, Direction médicale, Lausanne, CH, Switzerland

*Brigitte M Jolles, Department of Orthopaedic Surgery and Traumatology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Site Hôpital Orthopédique, 4 Avenue Pierre Decker, Lausanne, 1011, Switzerland. Brigitte.Jolles-Haeberli@chuv.ch.

Publication History

  1. Publication Status: New
  2. Published Online: 5 JUN 2013

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Table 1. Risk of bias tool of the Cochrane Collaboration

DomainSupport for judgementReview authors’ judgement

Selection bias.  

Random sequence generation.Describe the method used to generate the allocation sequence in sufficient detail to allow an assessment of whether it should produce comparable groups.Selection bias (biased allocation to interventions) due to inadequate generation of a randomised sequence.

Allocation concealment.Describe the method used to conceal the allocation sequence in sufficient detail to determine whether intervention allocations could have been foreseen in advance of, or during, enrolment.Selection bias (biased allocation to interventions) due to inadequate concealment of allocations prior to assignment.

Performance bias.  

Blinding of participants and personnel Assessments should be made for each main outcome (or class of outcomes). Describe all measures used, if any, to blind study participants and personnel from knowledge of which intervention a participant received. Provide any information related to whether the intended blinding was effective.Performance bias due to knowledge of the allocated interventions by participants and personnel during the study.

Detection bias.  

Blinding of outcome assessment Assessments should be made for each main outcome (or class of outcomes).Describe all measures used, if any, to blind outcome assessors from knowledge of which intervention a participant received. Provide any information related to whether the intended blinding was effective.Detection bias due to knowledge of the allocated interventions by outcome assessors.

Attrition bias.  

Incomplete outcome data

Assessments should be made for each main outcome (or class of outcomes). 
Describe the completeness of outcome data for each main outcome, including attrition and exclusions from the analysis. State whether attrition and exclusions were reported, the numbers in each intervention group (compared with total randomised participants), reasons for attrition/exclusions where reported, and any re-inclusions in analyses performed by the review authors.Attrition bias due to amount, nature, or handling of incomplete outcome data.

Reporting bias.  

Selective reporting.State how the possibility of selective outcome reporting was examined by the review authors and what was found.Reporting bias due to selective outcome reporting.

Other bias.  

Other sources of bias.State any important concerns about bias not addressed in the other domains in the tool.

If particular questions/entries were prespecified in the review’s protocol, responses should be provided for each question/entry.
Bias due to problems not covered elsewhere in the table.

 
Table 2. Levels of quality of a body of evidence in the GRADE approach

Underlying methodologyQuality rating

Randomised trials; or double-upgraded observational studiesHigh

Downgraded randomised trials; or upgraded observational studiesModerate

Double-downgraded randomised trials; or observational studiesLow

Triple-downgraded randomised trials; or downgraded observational studies; or case series/case reportsVery low