MR Imaging of Intra- and Periarticular Cyst-Like Lesions of the Knee Joint in Workers with Occupational Kneeling

Table 4

Association between knee complaints*and cyst-like lesions.

Type of lesion	Floor layers and Graphic designers (𝑛=141)
	N	Knee complaints, n (%)	OR^†	95% CI^‡
Periarticular bursae^§	102	53 (52.0)	1.40	0.65–3.04
Peripatellar bursae^¶	18	8 (44.4)	0.61	0.21–1.78
Joint effusion	48	27 (56.3)	1.16	0.74–1.81
Hoffa fat pad recesses	23	11 (47.8)	1.27	0.50–3.19
Extracapsular synovial cysts^‖	9	2 (22.2)	0.33	0.08–1.35
Popliteus tendon recesses	75	35 (46.7)	0.77	0.49–1.21
Parameniscal cysts (medial)	14	4 (28.6)	0.31	0.10–0.98
Insertional cysts (ACL)	17	12 (70.6)	2.33	0.85–6.39

*Knee complaints during the past 12 mo.
^†Odds ratio calculated relative to knee complaints (𝑛=70) in the entire study sample. Adjusted for occupation, age, body mass index, knee injuries, and knee-straining sports.
^‡Confidence interval.
^§Subgastrocnemius, semimembranosus-gastrocnemius, medial and lateral collateral ligament, biceps femoris, anserine, and semimembranosus-gracilis.
^¶Prepatellar, superficial and deep infrapatellar.
^‖From capsular defects of the dorsal femoral condyles.