Large medial meniscus extrusion and varus are poor prognostic factors of arthroscopic partial meniscectomy for degenerative medial meniscus lesions

Table 4 Multivariate logistic regression analysis

Dependent variables	Significant variables	OR	P value	95% CI
Lysholm, fair or poor^&, n = 37	Age, y	1.109	0.050	1.102–1.232
Lysholm, fair or poor^&, n = 37	HKA, °	0.255	0.000	0.131–0.499
Progression of K–L grade, n = 38	MME	10.327	0.000	4.009–26.602

CI confidence interval, HKA hip–knee–ankle, K–L grade Kellgren–Lawrence grade, OR odds ratio
^&The Lysholm score is categorized into the following 4 grades: excellent = 91–100, good = 84–90, fair = 65–83, and poor < 64
*Significant variables (P value ≤ .05) are descripted from age, HKA, cartilage status grade ≥ 3 and medial meniscal extrusion using forward stepwise method to evaluate preoperative prognostic factors leading to unfavorable outcomes

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