|Exclusion criteria for the title, abstract, and paper-level screening of articles retrieved from the PubMed search|
|Exclusion criteria, listed in hierarchical order||Example or explanation|
|• Focus on wrong procedure||e.g. total knee arthroplasty|
|• Focus on risk factors for primary THA||as opposed to risk of revision of THA|
|• Focus on outcomes of revision THA surgery||as opposed to risk of revision of primary THA|
|• No living human subjects||e.g. canine or simulation study|
|• Focus on non-standard THA||e.g. hip resurfacing|
|• Focus on THA to address hip fracture||as opposed to THA for hip arthritis|
|• Focus on non-prosthesis THA outcome||e.g. mortality|
|• Focus on prosthesis-related non-revision outcome||e.g. polyethylene wear|
|• Focus on stem or cup failure only*||as opposed to revision of any component|
|• Focus on specific brand comparison only+||no other comparisons reported|
|• Sample has less than 2,500 person-years||at the title level, case studies were excluded|
|• Study includes no new clinical data*||e.g. literature review|
|• Study does not report a comparative risk metric+||e.g. no odds ratio or multiple survival curves|
|• Article could not be retrieved+||not available in electronic or print archives|
* Assessed at the abstract and paper levels of screening only.
+ Assessed at the paper level of screening only.
Prokopetz et al.
Prokopetz et al. BMC Musculoskeletal Disorders 2012 13:251 doi:10.1186/1471-2474-13-251