Table 2 Preoperative and postoperative (final follow-up) data

Elbow extension degree (n = 11)

−17 (±13)

−7.2 (±7.6)

<.01

 Open surgery (n = 5)

−22 (±16)

−11 (±8)

n.s.

 Arthroscopic surgery (n = 6)

−13 (±8.8)

−4.2 (±4.9)

n.s.

Elbow flexion degree (n = 11)

119 (±11)

132 (±7.4)

<.01

 Open surgery (n = 5)

115 (±9)

128 (±8.3)

<.05

 Arthroscopic surgery (n = 6)

121 (±13)

134 (±5.8)

n.s.

Total arc degree (n = 11)

101 (±22)

125 (±12)

<.01

 Open surgery (n = 5)

93 (±20)

117 (±10)

<.05

 Arthroscopic surgery (n = 6)

108 (±21)

130 (±9.6)

n.s.

Hand20 score (0–100) (n = 11)

52 (±22)

22 (±16)

<.01

 Open surgery (n = 5)

49 (±23)

19 (±23)

<.01

 Arthroscopic surgery (n = 6)

53 (±20)

20 (±7.8)

<.05

JOA-JES score (n = 11)

67 (±6.5)

88 (±6.9)

<.01

 Open surgery (n = 5)

63 (±6.1)^a

88 (±6.4)

<.01

 Arthroscopic surgery (n = 6)

71 (±4.7)

89 (±8)

<.01

MEPS (n = 11)

71 (±12)

91 (±10)

<.01

 Open surgery (n = 5)

70 (±11)

91 (±13)

<.05

 Arthroscopic surgery (n = 6)

74 (±14)

93 (±8.2)

<.01

Pain score (0–10) (n = 11)

6.5 (±2)

2.9 (±1.6)

<.01

 Open surgery (n = 5)

6 (±2.8)

2.5 (±2.4)

<.05

 Arthroscopic surgery (n = 6)

7 (±0.7)

2.6 (±0.5)

<.01