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. Author manuscript; available in PMC: 2025 Sep 1.
Published in final edited form as: Am J Ophthalmol. 2024 Apr 12;265:21–27. doi: 10.1016/j.ajo.2024.03.025

Table 2.

Initial and Maintenance Forces After Tenotomy (Newtons)

Specimen Tenotomy 1 2 3 4 5 6 7 8 Average SD CV (%)
Inferior 0% 2.47 0.32 0.82 2.33 1.23 1.04 5.93 3.18 2.16 1.68 78
25% 1.88 0.16 0.60 1.55 0.69 0.83 4.47 2.46 1.58 1.30 82
50% 1.70 0.12 0.36 1.21 0.52 0.45 1.89 0.71 0.87 0.61 70
75% 1.29 0.08 0.07 1.04 0.43 0.18 0.54 0.36 0.50 0.42 84
90% 0.66 0.06 0.04 0.48 0.34 0.07 0.12 0.27 0.25 0.21 84
100% 0 0 0 0 0 0 0 0 0 --- ---
Lateral 0% 5.84 2.60 5.68 3.13 2.58 7.57 2.95 16.83 5.90 4.48 76
25% 0.62 0.82 4.94 1.24 1.73 5.84 2.41 13.76 3.92 4.13 105
50% 0.37 0.44 4.73 0.44 1.18 4.00 1.80 8.84 2.73 2.79 102
75% 0.19 0.29 3.08 0.40 0.51 2.85 1.21 5.19 1.71 1.70 99
90% 0.06 0.24 0.89 0.27 0.32 0.04 0.47 2.03 0.54 0.62 114
100% 0 0 0 0 0 0 0 0 0 --- ---
Superior 0% 1.75 1.96 4.09 4.45 8.83 3.28 10.62 1.31 4.54 3.20 71
25% 1.08 1.51 2.90 1.99 2.98 0.89 6.73 0.68 2.34 1.85 79
50% 0.26 1.31 1.89 0.90 1.05 0.67 3.11 0.25 1.18 0.89 75
75% 0.15 1.29 0.89 0.71 0.69 0.56 0.45 0.13 0.61 0.36 59
90% 0.09 1.21 0.30 0.22 0.44 0.37 0.12 0.09 0.36 0.34 96
100% 0 0 0 0 0 0 0 0 0 --- ---
Medial 0% 1.23 6.29 3.05 1.25 0.33 9.11 8.59 4.72 4.32 3.19 74
25% 0.98 3.94 2.13 0.81 0.24 8.80 5.24 3.42 3.19 2.66 83
50% 0.75 2.03 1.50 0.30 0.18 6.85 2.27 2.34 2.03 1.99 98
75% 0.64 0.87 1.18 0.13 0.12 5.20 1.01 0.66 1.23 1.54 126
90% 0.46 0.48 0.12 0.04 0.08 1.34 0.65 0.22 0.43 0.40 95
100% 0 0 0 0 0 0 0 0 0 --- ---

SD: standard deviation, CV: coefficient variation