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Table 4 Intra-observer and inter-observer correlation for primary variables measured

From: Achieving coronal plane alignment in total knee arthroplasty through modified preoperative planning based on long-leg radiographs: a prospective study

Primary Variable Measured Intra-observer Correlation$ (r) Inter-observer Correlation# (r)
Pre-operative HKA axis 0.99 1.00
Post-operative HKA axis 0.99 0.98
Pre-operative mLDFA 0.98 0.98
Post-operative mLDFA 0.97 0.97
Pre-operative MPTA 0.99 0.99
Post-operative MPTA 0.96 0.95
  1. $ and #: p value < 0.0001 for all the variables measured