Table 2 The clinical outcomes and complications in the patients who underwent frozen autograft reconstruction on the appendicular skeleton in the three age groups.

From: Clinical outcomes of frozen autograft reconstruction for the treatment of primary bone sarcoma in adolescents and young adults

Generation

Children (≤ 14 years old)

AYAs (15 to 39 years old)

Older adults (≥ 40 years old)

P-value

Case (n)

27

37

16

Chemotherapy (n)

27

35

8

 < 0.01

Oncological outcome (n) (%)

CDF 16 (59%)

CDF 16 (43%)

CDF 10 (63%)

0.58

NED 5 (19%)

NED 6 (16%)

NED 1 (6%)

AWD 2 (7%)

AWD 5 (14%)

AWD 3 (19%)

DOD 4 (15%)

DOD 10 (27%)

DOD 1 (6%) DOOD 1 (6%)

Median period of bone union (mos.) (range)

6 (3–15)

8 (3–21)

10 (4–24)

0.14

Bone union rate within 1 year

94%

94%

63%

0.06

Functional score (MSTS score) (n) (%)

Excellent 18 (86%)

Good 2 (10%)

Fair 1 (5%)

Poor 0 (0%)

Excellent 23 (79%)

Good 4 (14%)

Fair 2 (7%)

Poor 0 (0%)

Excellent 13 (87%)

Good 1 (7%)

Fair 1 (7%)

Poor 0 (0%)

0.98

5-year graft survival (%)

80%

86%

79%

0.79

Reasons for graft removal

Infection (n) (%)

1 (4%)

5 (14%)

3 (19%)

0.28

Fracture (n) (%)

1 (4%)

0 (0%)

0 (0%)

0.54

Non-union (n) (%)

0 (%)

0 (0%)

0 (0%)

1

Osteoarthritic change (n) (%)

2 (7%)

0 (0%)

0 (0%)

0.15

Recurrence (n) (%)

3 (11%)

2 (5%)

1 (6%)

0.86

Complications

Infection (n) (%)

1 (4%)

7 (19%)

3 (19%)

0.17

Fracture (n) (%)

8 (30%)

2 (5%)

1 (6%)

0.03

Non-union (n) (%)

3 (11%)

1 (3%)

1 (6%)

0.35

Limb deformity (n) (%)

5 (19%)

1 (3%)

0 (0%)

0.05

Osteoarthritic change (n) (%)

4 (15%)

5 (14%)

0 (0%)

0.37

Bone absorption (n) (%)

1 (4%)

3 (8%)

2 (13%)

0.56

Salvage amputation

Recurrence (n) (%)

Infection (n) (%)

2 (7%)

1 (4%)

2 (5%)

3 (8%)

1 (6%)

0 (0%)

1

0.67

  1. CDF clinically disease-free, NED no evidence of disease, AWD alive with disease, DOD dead of disease, DOOD dead of other diseases, MSTS Musculoskeletal Tumor Society.