Ossicular Reconstruction with Sheehy PORP

Abstract

ObjectiveTo report tympanoplasty cases completed with Sheehy Partial Ossicular Replacement Prostheses (PORP). MethodsSeventy eight(83 ears) of 89 cases who received Sheehy PORP for ossicular chain reconstructionwere reviewed. These cases were followed for more than 6 months(mean: 21.3 months). The pre- and post-operative average air conduction thresholds and Air-Bone Gap(ABG) at 0.5, 1 and 2kHz were compared. ResultsAll 83 ears showed uneventful healing at 1 month postoperatively. PORPs in 2 ears without cartilage reinforcement were found dislocated at 3 months. Preoperative hearing thresholds were from 35.75 to 68.5 dB HL (mean: 59.13 ± 15.23 dB HL). Postoperative mean hearing threshold improved to 32.23± 13.21 dB HL (P <0.01). Mean air-bone gap(ABG) improved from 36.95 ± 12.19 dB preoperatively to 21.71 ± 12.05 dB after surgery(P < 0.01). In 68 ears (81.9%), postoperative ABGs were either ≤ 20 dB or improved by 15 dB or more compared to before surgery (defined as satisfactory). ConclusionPORP as a ossicular reconstruction material appears to provide satisfactory results. Attention should be paid to avoid of postoperative dislocation. Long-term outcomes remain to be assessed.