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Table 4 Repetition numbers of intraoperative additional resection

From: Predictive factors and repetition numbers for intraoperative additional resection of initially involved soft tissue resection margins in oral squamous cell carcinoma: a retrospective study

Variable

0

1

2

p-value

Clinical preoperative parameters

Tumor location (n)

  Tongue

8 (100.0%)

0 (0.0%)

0 (0.0%)

0.194

  Floor of mouth

10 (90.9%)

1 (9.1%)

0 (0.0%)

  Mandible

8 (88.9%)

1 (11.1%)

0 (0.0%)

  Maxilla

5 (71.4%)

2 (28.6%)

0 (0.0%)

  Cheek

5 (100.0%)

0 (0.0%)

0 (0.0%)

  Soft palate

2 (50.0%)

1 (25.0%)

1 (25.0%)

  Hard palate

0 (0.0%)

0 (0.0%)

0 (0.0%)

Midline involvement (n)

  No

33 (86.8%)

4 (10.5%)

1 (2.6%)

0.609

  Yes

5 (83.3%)

1 (16.7%)

0 (0.0%)

cT-status > 2 (n)

  No

25 (86.2%)

3 (10.3%)

1 (3.4%)

1.000

  Yes

13 (86.7%)

2 (13.3%)

0 (0.0%)

Clinical intraoperative parameters

Bone resection (n)

  No

14 (93.3%)

1 (6.7%)

0 (0.0)

0.764

  Yes

24 (82.8%)

4 (13.8%)

1 (3.4%)

Monopolar instrument use (n)

  No

6 (75.0%)

1 (12.5%)

1 (12.5%)

0.212

  Yes

32 (88.9%)

4 (11.1%)

0 (0.0%)

Reconstruction flap size (n)

  Small

26 (89.7%)

3 (10.3%)

0 (0.0%)

0.554

  Large

12 (80.0%)

2 (13.3%)

1 (6.7%)

Histopathological postoperative parameters

pT-status > 2 (n)

  No

20 (87.0%)

3 (13.0%)

0 (0.0%)

0.824

  Yes

18 (85.7%)

2 (9.5%)

1 (4.8%)

Grading > 2 (n)

  No

30 (83.3%)

5 (13.9%)

1 (2.8%)

0.644

  Yes

8 (100.0)

0 (0.0%)

0 (0.0%)

Vascular invasion (n)

  No

37 (86.0%)

5 (11.6%)

1 (2.3%)

1.000

  Yes

1 (100.0%)

0 (0.0%)

0 (0.0%)

Lymphatic invasion (n)

  No

33 (86.8%)

4 (10.5%)

1 (2.6%)

0.609

  Yes

5 (83.3%)

1 (16.7%)

0 (0.0%)

  1. Data presented as numbers (with percentage) (tumor location, midline involvement, cT-status, bone resection, monopolar instrument use, reconstruction flap size, pT-status, grading, vascular invasion, lymphatic invasion) for patients with intraoperative additional resection (n = 44); reconstruction flap size small: radial free forearm flap, scapula free flap, soleus perforator flap; reconstruction flap size large: anterolateral thigh flap, fibula free flap, latissimus dorsi flap; p-values corresponding to testing for differences between groups with Freeman Halton test
  2. Abbreviations: cT-status clinical T-status, pT-status histopathologic T-status