Poor Prognostic Factors in Surgically Treated Habitual Patellar Dislocation in Children and Adolescents.

All 5 knees (100%) with Lysholm scores <85 had trochlear dysplasia, compared to 24 of 40 knees (60%) with scores ≥ 85 (χ 2 test, p = 0.072, OR undefined due to 100% prevalence), approaching but not reaching significance. 3.6.

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It occurred in 10 of 14 knees (71.43%) with recurrence and 13 of 31 knees (41.94%) without (χ 2 test, p = 0.066, OR = 3.46), approaching significance.

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Clinical landmarks Our data regarding the Lysholm score showed highly significant improvement after surgery and a strong association between recurrence and low postoperative Lysholm (all patients with low postoperative Lysholm had recurrence, and only 23.3% of high-score patients; p = 0.0024).

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