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Table 4 Stepwise regression model

From: Correlation of MRI and arthroscopic findings with clinical outcome in temporomandibular joint disorders: a retrospective cohort study

 

Variable

P-Value

MRI

ST improvement in MC in the entire population

Crumpled disc ≤3

0.0112

  

Rounded disc ≤1

0.073

  

Articular eminence deformation ≤1

0.0848

  

Lateral pterygoid muscle anomaly ≤2

0.1763

  

Joint effusion ≤2

0.2095

 

ST improvement in MC if MC is pain

Condylar Deformation ≤4

0.0029

  

Lateral pterygoid muscle deformation ≤2

0.0049

  

Articular eminence deformation ≤1

0.0052

  

Rounded disc ≤1

0.0227

 

MT improvement in MC in the entire population

Crumpled disc ≤3

0.0054

  

DJD

0.1861

  

Inflammatory arthritis

0.1992

 

MT improvement in MC if MC is pain

Articular eminence deformation ≤1

0.0325

Arthroscopy

ST improvement in MC in the entire population

DJD

0.0178

  

Haemorrhagic infiltration of the medial synovium ≤1

0.0845

  

Other

0.068

 

ST improvement in MC if MC is pain

Reduction ≤2

0.0744

  

Other

0.4226

 

MT improvement in MC in the entire population

Displacement of the disc ≤4

0.058

 

MT improvement in MC if MC is pain

Articular eminence deformation ≤4

0.2853

MRI + Arthroscopy

ST improvement in MC in the entire population

Reduction (arthroscopy) ≤ 2

0.0474

  

Other (arthroscopy)

0.3772

 

ST improvement in MC if MC is Pain

DJD (arthroscopy)

0.0559

  

Other (arthroscopy)

0.1823

  

Joint effusion (MRI) ≤ 1

0.1418

 

MT improvement in MC in the entire population

Crumpled disc (MRI) ≤ 3

0.0078

  

DJD (MRI)

0.0581

 

MT improvement in MC if MC is Pain

Articular eminence deformation (arthroscopy) ≤ 4

0.9984

  1. MRI: Magnetic resonance imaging, ST: short-term, MT: medium-term, MC: Main Complaint, DJD: Degenerative Joint Disease. P-values in bold are significant. 5-point Likert scale (1. absolutely not present; 2. probably not present; 3. uncertain; 4. probably present; 5. absolutely present)