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Table 2 Histological analysis

From: Differences in placement of calcium phosphate-hybridized tendon grafts within the femoral bone tunnel during ACL reconstruction do not influence tendon-to-bone healing

 

Failure mode (number)

Suspension group (n = 9)

Coherence group (n = 9)

2 weeks

PO: 2/MS: 7

PO: 2/MS: 7

4 weeks

PO: 0/MS: 9

PO: 0/MS: 9

 

Soft tissue remaining within the bone tunnel after biomechanical testing (μm2/μm)

Suspension group (n = 9)

Coherence group (n = 9)

2 weeks

77.2 ± 49.3+

104.0 ± 95.5+

4 weeks

596.4 ± 586.7+

434.6 ± 280.5+

 

Direct bonding area (%)

Suspensor group (n = 5)

Coherence group (n = 5)

2 weeks

32.1 ± 12.5+

30.2 ± 9.9+

4 weeks

51.4 ± 7.4+

50.9 ± 7.0+

 

Width of GAG-stained area (μm2/μm)

Suspension group (n = 5)

Coherence group (n = 5)

2 weeks

96.1 ± 12.2

76.2 ± 50.4

4 weeks

143.1 ± 90.3

124.3 ± 33.4

 

LTMI score (points)

Suspension group (n = 5)

Coherence group (n = 5)

2 weeks

14.4 ± 1.3

14.4 ± 0.9

4 weeks

14.8 ± 1.8

14.2 ± 0.8

  1. Results are shown as mean ± SD
  2. PO pull out, MS tendon midsubstance, LTMI ligament tissue maturation index, GAG glycosaminoglycan
  3. *:Significant difference between groups in the same week (p < 0.05)
  4. +:Significant difference between weeks in the same group (p < 0.05)