Middle-aged patients with an MRI-verified medial meniscal tear report symptoms commonly associated with knee osteoarthritis

Figures & data

Prevalence of symptoms with 95% CI in patients with an MRI-verifi ed degenerative meniscal tear and considered eligible for arthroscopic partial meniscectomy.

Table 1. Demographics of patients with an MRI-verified meniscal tear found eligible for arthroscopic partial meniscectomy

	Eligible for surgery
	(n = 199)
Age, mean (range)	48 (35–60)
Sex, n (%)
Male	118 (59)
Female	81 (41)
BMI, mean (range)	26 (17–40)
Tibiofemoral K&L, n (%)
Grade 0	128 (64)
Grade 1	59 (30)
Grade 2	11 (6)
KOOS, mean (range)
Pain	62 (11–97)
Symptoms	70 (29–100)
ADL	73 (16–100)
Sport and recreation	40 (0–100)
QOL	42 (6–94)

Table 2. Logistic regression analysis of association between radiographic knee OA and knee symptoms

Symptoms	Odds ratio	p-value	95% CI
P1 How often do you experience knee pain?*
What amount of knee pain have you experienced the last week during the following activities?
P2 Pain when pivoting/twisting	1.4	0.6	0.4–4.7
P3 Pain straightening knee	1.8	0.1	0.9–3.6
P4 Pain bending knee	1.1	0.7	0.5–2.5
P5 Pain walking	1.5	0.2	0.8–3.0
P6 Pain going up/down stairs	1.5	0.4	0.6–3.7
P7 Pain at night	1.5	0.2	0.8–2.9
P8 Pain sitting or lying	1.1	0.9	0.5–2.2
P9 Pain standing upright	1.4	0.4	0.7–2.8
S1 Do you have swelling in your knee?	2.4	0.01	1.2–4.9
S2 Do you feel grinding, hear clicking or any other type of noise when your knee moves?	1.6	0.3	0.7–3.5
S3 Does your knee catch or hang up when moving?	2.3	0.01	1.2–4.3
S4 Can you straighten your knee fully?	1.9	0.06	1.0–3.7
S5 Can you bend your knee fully?	1.8	0.07	1.0–3.4
S6 How severe is your knee joint stiffness after first waking in the morning?	1.4	0.3	0.7–2.9
S7 How severe is your knee stiffness after sitting, lying, or resting later in the day?	2.3	0.03	1.1–5.0
Q3 How much are you troubled by lack of confidence in your knee?	0.5	0.5	0.1–4.1

* Since pain was reported by all patients no analysis was carried out.