Table 2

Basic characteristics of included studies

AuthorEvidenceDesignMatchingRACAFollow-upQuality scoreCountry
NoRobot typeNo
Lim et al 201582bRCT12 34524ROBDOC2524 monthsRCTKorea
Nakamura et al 201092bRCT123475ROBDOC715 yearsRCTJapan
Nishihara et al 2006102bRCT1278ROBDOC7824 monthsRCTJapan
Hananouchi et al 2007113bRP1331ROBDOC2724 months★★★★★★★Japan
Siebel et al 2005123bRP1236CASPAR3517.9 months★★★★★★Germany
Domb et al 201463bR12 34550MAKO50NS★★★★★★★USA
Domb et al 2015133bR12228MAKO708NS★★★★★★USA
  • Design: R, retrospective; RP, retrospective design. Matching: (1) age; (2) gender; (3) body mass index; (4) aetiology; (5) single surgeon.

  • CA, conventional arthroplasty; NS, not specified; RA, robotic-assisted arthroplasty; RCT,  randomised clinical trial.