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Table 4 Clinical and functional outcome stratified by age

From: Arthroscopic patellar release for treatment of chronic symptomatic patellar tendinopathy: long-term outcome and influential factors in an athletic population

Parameter < 30y ≥ 30y Significance
VISA-P preoperative 56.33 ± 14.07 54.42 ± 10.0 P = 0.1297
VISA-P score postoperative 96.89 ± 5.75 93.25 ± 10.56 P = 0.6138
Modified Blazina score preoperative 4.22 ± 0.80 3.83 ± 0.72 P = 0.1760
Modified Blazina score postoperative 0.11 ± 0.32 0.58 ± 0.79 P = 0.0448
Pain (VAS) preoperative 6.06 ± 1.43 5.25 ± 0.97 P = 0.1259
Pain (VAS) postoperative 0.11 ± 0.32 1.08 ± 1.38 P = 0.0122
Subjective Knee Function (SANE) preoperative 48.06 ± 17.67 40.42 ± 17.64 P = 0.2665
Subjective Knee Function (SANE) postoperative 94.17 ± 5.75 87.50 ± 10.98 P = 0.0819
Mean Time Period for Return to Sports [months] 3.69 ± 2.60 4.54 ± 3.96 P = 0.9316
  1. Mean ± SD; P-values ≤0.05 are considered statistically significant; RTS Return to Sports
  2. Comparison FU (years) < 30: 8.51 ± 2.75; FU (years) ≥30: 9.24 ± 2.99; p = 0.2115
  3. Age at surgery (years): <30: 23 ± 4; Age at surgery (years): ≥30: 36.08 ± 6.11
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