Patient-Specific or Conventional Instrumentations: A Meta-analysis of Randomized Controlled Trials

Figure 5

Forest plot of malalignment of mechanical axis. Subgroup analysis by system-specific PSI. Abbreviations: PSI: patient-specific instrumentation; CI: conventional instrumentation; SD: standard difference. Other PSI systems: a: MyKnee; b: Materialise NV; c: Miscellaneous.