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Table 2 Morphology, MRI typing and surgical treatment of DLM

From: Prevalence of bilateral Discoid Lateral Menisci (DLM) in patients operated for symptomatic DLM with a follow-up study on their asymptomatic contralateral knees: a Magnetic Resonance Imaging (MRI) assessment

  Count (%)
Morphology of Bilateral DLM (80 patients)  
Homotype DLM  
CDM/CDM 61(76)
ICDM/ICDM 7(9)
Heterotype DLM (CDM/ICDM) 12(15)
Surgery & MRI type (total 136 knees)  
Central partial meniscectomy  
No shift 44(32.35)
Anterocentral shift 1(0.7)
Posterocentral shift 8(5.9)
Central shift 3(2.2)
Central partial meniscectomy + repair  
Non shift 13(9.6)
Anterocentral shift 1(0.7)
Posterocentral shift 9(6.6)
Central shift 5(3.7)
Subtotal meniscectomy  
No shift 24(17.6)
Anterocentral shift 1(0.7)
Posterocentral shift 10(7.4)
Central shift 17(12.5)
  1. DLM, discoid lateral meniscus; CDM, complete discoid type; ICDM, incomplete discoid type; MRI, magnetic resonance imaging.