Tympanoplasty type 1: A comparison between underlay technique of myringoplasty with over under technique of myringoplasty

Aim: to compare the underlay myringoplasty with over under myringoplasty with respect to post operative hearing improvement and rate of graft up take. setting: department of ent,sir ganga ram hospital lahore duration of study: october 208 to october 2010 sample size: a total of 60 patients divided equally in two groups were underwent myringoplasty and been followed for 3 months. sample technique: non probability purposive sample with random allocation to the two study groups using random number table. method: group i underwent underlay myringoplasty and group ii was managed by over under myringoplasty. result: in group i,25(83.3%) patients had a full take of the graft at the 3-month follow-up. in group ii,27(90%) patients had a full take of the graft at the 3-month follow-up. these patients did not develop severe graft lateralization,infection or blunting (p 0.7). in group i,the hearing improvement or the decrease in air bone gap is by 11±7.2db while in group ii,the improvement of hearing or decrease in air bone gap is by 12.2±7db (p 0.52). conclusion: there were high success rate of graft up take and considerable hearing improvement in both techniques of myringoplasty. no statistically significant difference in both the techniques was proved.