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Table 1 Tabular summary of demographic data, fracture classification and postoperative complications

From: Incidence of postoperative complications in patellar fractures related to different methods of osteosynthesis procedures - a retrospective cohort study

 

Group 1 (tension band technique)

Group 2 (screw fixation)

Group 3 (hybrid technique)

Group 4 (plate osteosynthesis)

Total number (n)

30

47

20

15

Gender

f = 12, m = 18

f = 22, m = 25

f = 10, m = 10

f = 8, m = 7

Age (years)

45 (18–84)

47 (18–84)

47 (18–91)

54 (26–72)

Follow-up (months)

30 (12–91)

31 (12–168)

24 (12–105)

19 (12–28)

Fracture classification

 AO 34 B1

0

9

0

0

 AO 34 B2

0

7

1

1

 AO 34 C1

8

23

3

2

 AO 34 C2

12

8

5

2

 AO 34 C3

10

0

11

10

Postoperative complications

 Early complications (wound infection, postoperative hematoma, thrombembolism

5

2

4

0

 Late complications (secondary fracture dislocation, nonunion, osteoarthritis

4

2

1

2

 Complications ratio (%)

30%

8.51%

25%

13.33%

 Postoperative infections

2

0

3

0

 Infections ratio (%)

6.67%

0%

15%

0%

 Signs of postraumatic degenerative joint changes

16

18

11

7

 Implant removal

23

26

13

11