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Comparison of the measured values by PJR with those of the Merchant and Settegast methods.
| Comparison among three groups | Measure | |||
|---|---|---|---|---|
| Parameters | PJR | Merchant | Settegast | |
| Degree of flexion | 40° | 45° | 105° | p-value |
| Patellar angle | 9° | 13° | 14.5° | — |
| X-ray tube angle | 99° | 60° | 15° | — |
| Detector angle | 81° | 45° | 0° | — |
| (a) DMLP | 9.97 ± 0.15 | 10.57 ± 0.47 | 9.40 ± 0.47 | 0.001 |
| (b) DPFG | 12.35 ± 0.68 | 10.55 ± 0.43 | 8.54 ± 0.65 | 0.001 |
| (c) DFGT | −0.37 ± 0.36 | 3.93 ± 0.23 | 5.42 ± 0.49 | 0.001 |
