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Table 2 Recidivism after canal wall up and canal wall down approaches

From: Recidivism of childhood cholesteatoma and surgical techniques: a meta-analysis study

Time Author Mean follow-up CWU CWD Total recidivism rate (%) CWU and CWD
Recidivism (%) Recidivism (%)
  Brown [16] 10 22/62 (35.48%) 12/36 (33.33%) 34/98 (34.69%)
Before 2000 Charachon and Gratacap [19] > 3 years 45/99 (45.45%) 7/42 (8.95%) 59/136 (43.38%)
Lau and Tos [13] 9.5 9/51 (18%) 10/45 (22.22%) 19/96 (19.79%)
Edelstein D. et al. [15] 3.9 years 3/39 (7.69%) 9/66 (13.36%) 12/105 (11.42%)
Marco-Algarra et al. [18] 7.1 15/40 (37.50%) 2/15 (13.33%) 17/55 (30.91%)
Cruz et al. [21] > 2 years 12/26 (46.15%) 10/75 (13.33%) 22/101 (21.78%)
Schmid et al. [22] 7 years 6/16 (37.50%) 6/39 (15.38%) 12/55 (21.81%)
Crellin et al. [23] > 18 months 4/5 (80%) 18/60 (30%) 22/65 (33.84%)
Mills and Padgham [24] 50 months 1/3 (33.33%) 3/27 (11.11%) 4/30 (13.33%)
Rigner et al. [25] 5 years 6/10(60%) 1/9(11.11%) 7/19(63.84)
Stern and Fazekas–May [26] 29 months 10/29 (34.48%) 12/25 (48%) 22/54 (40.74%)
Vartiainen and Nuutinen [27] 7.1 years 2/9 (22.22%) 6/35 (17.14%) 8/44 (18.18%)
Parisier et al. [28] 7.2 years 11/62 (17.74%) 11/103 (10.68%) 22/165 (13.33%)
Stangerup et al. [29] 5.8 years 17/44 (38.64%) 4/21 (19.04%) 21/65 (32.30%)
Dodson et al. [7] 37.7 months 17/41 (41.46%) 2/17 (11.76%) 19/58 (32.75%)
Silvola and Palva [30] 4.8 years 4/17 (23.53%) 16/50 (32%) 20/67 (29.85%)
During and after 2000 Darrouzet et al. [31] 70 months 56/190 (29.47%) 9/21 (42.86%) 65/211 (30.80%)
Ueda et al. [32] > 1 years 14/32 (43.75%) 3/20 (15%) 17/52 (32.69%)
Gocmen et al. [33] 3.7 years 9/35 (25.71%) 12/79 (15.19%) 21/114 (18.42%)
Ahn et al. [34] 5 years 2/19 (10.53%) 17/102 (16.67%) 19/121 (15.70%)
Schraff and Strasnick [8] 2.6 years 38/221 (17.19%) 7/57 (12.28%) 45/278 (16.18%)
Shirazi et al [5] 6 years 2/38 (5.26%) 2/48 (4.17%) 4/86 (4.65%)
Yung et al. [35] 5 years 2/6 (33.33%) 4/35 (11.43%) 6/41 (14.63%)
Drahy et al. [36] 74 months 4/18 (22.22) 0/4 (0%) 4/22(18.18%)
McRackan et al. [37] 36.5 months 101/409 (24.69%) 9/51 (17.65%) 110/460 (23.91%)
  Osborn et al. [38] at least 1 year 106/352 (30.11%) 8/57 (14.04%) 114/409 (27.87%)
  Vincenti et al. [39] 8 4/12 (33.33%) 0/6 (0%) 4/18 (22.22%)
  Sergi et al. [40] 38 months 4/20 (20%) 2/13 (15.38%) 6/33 (18.18%)
  Total 526/1905 (27.61%) 202/1158 (17.44%) 728/3063 (23.77%)
  1. CWU canal wall up, CWD canal wall down
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