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

Figure 3

Forest plot operative time and blood loss. (a) Forest plot operative time, subgroup analysis by MRI-based and CT-based PSI. (b) Forest plot of blood loss evaluated by reduction of (A) hemoglobin and (B) volume of blood. PSI: patient-specific instrumentation; CI: conventional instrumentation; SD: standard difference.

(a) Operative time

(b) Blood loss