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Table 4 Details of second surgery in contralateral knees of 12 bilateral DLM patients that became symptomatic within 5 years after first surgery.

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

    Contralateral asymptomatic knees that developed symptoms within a 5-yr post-op period
ID Sex Age Site Surgery date MRI grade (no apparent symptoms) Surgical treatment Operation type MRI grade (at onset of symptoms) Shift type Time interval between two operations (months)
1 M 19 R 01/2009 NR Subtotal meniscectomy Complete III Posterocentral 18
2 F 12 L 09/2009 III Subtotal meniscectomy Complete III Posterocentral 7
3 M 13 L 07/2009 NR Meniscoplasty Complete III Posterocentral 12
4 F 36 L 01/2010 NR Meniscoplasty Complete I No shift 24
5 M 17 R 02/2010 III Meniscoplasty Incomplete III Posterocentral 42
6 F 12 L 09/2011 III Meniscoplasty Complete III No shift 18
7 M 17 L 06/2010 NR Meniscoplasty Complete III Posterocentral 35
8 M 17 R 09/2009 NR Meniscoplasty Complete III No shift 20
9 M 41 R 11/2009 NR Subtotal meniscectomy Complete III No shift 11
10 M 17 L 01/2010 NR Meniscoplasty + repair Complete III No shift 60
11 M 67 R 01/2010 II Subtotal meniscectomy Complete III No shift 11
12 F 7 R 07/2011 II Meniscoplasty Incomplete III No shift 19
  1. L, left knee; R, right knee; DLM, discoid lateral meniscus; NR, not recorded.