Does meniscectomy have any advantage over conservative treatment in middle-aged patients with degenerative medial meniscus posterior root tear?

Table 2 Comparison of the preoperative variables

	Meniscectomy group (n = 90)	Conservative group (n = 56)	P-value
HKAA^b (varus, °)	2.9 ± 2.5	2.7 ± 2.4	0.76
MPTA^b (°)	87.3 ± 3.0	86.6 ± 3.3	0.23
TPSA^b (°)	7.0 ± 4.4	6.8 ± 3.5	0.73
K-L grade^a (I/II) Width of medial joint space‡ (mm)	3/87 4.7 ± 1.2	5/51 4.6 ± 1.1	0.26 0.19

^aPearson’s chi-square test, ^bIndependent t-test. Data are presented median ± standard deviation. The P-values reflect the results of inter-group comparisons, with p < 0.05 indicating significance.HKAA Hip-knee-ankle angle, MPTA Medial proximal tibial angle, TPSA Tibial posterior slope angle, K-L Kellgren-Lawrence

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