15 research outputs found
A new wide-diameter bone-anchored hearing implant-prospective 1-year data on complications, implant stability, and survival
OBJECTIVE: To investigate a new wide bone-anchored hearing implant considering initial stability, stability over time, implant loss, and skin reaction. STUDY DESIGN: Consecutive, prospective case series. SETTING: Tertiary referral center. PATIENTS: Twenty adult patients were enrolled. All operations were 1-stage, single-incision technique with subcutaneous reduction. INTERVENTION(S): Measurement of implant stability. MAIN OUTCOME MEASURE(S): Implant stability quotient (ISQ) values were recorded using resonance frequency analysis at the time of implantation and at 10 days, 6 weeks, 6 months, and 1 year after surgery. Skin and soft tissue reactions according to Holgers grading system. RESULTS: Implant stability quotient measurements revealed a significant increase in ISQ during the first 10 days after operation, and the ISQ values continued to rise throughout the 1-year observation period. No implants were lost. Skin and soft tissue reactions were rare and minor, as no reaction was seen in 93% of the follow-up examinations and no grade 4 reactions occurred. CONCLUSION: The new wide implant showed good stability at surgery. Osseointegration was fast, and implant stability increased throughout the 1-year observation period. No implants were lost. Skin and soft tissue reactions were rare and minor
Surgical Results and Complications of Cochlear Implantation in Far-Advanced Otosclerosis
Towards Direct Loading:Two Prospective Clinical Trials using Two Wide Diameter Implants and Early Sound Processor Loading
Long-term Results of 185 Consecutive Osseointegrated Hearing Device Implantations:A Comparison Among Children, Adults, and Elderly
The Effect of a Distributed Virtual Reality Simulation Training Program on Dissection Mastoidectomy Performance
The effect of self-directed virtual reality simulation on dissection training performance in mastoidectomy
Performance outcomes with laser-ablated BHX implants for bone-anchored hearing procedures - 3-month data from a multi centre study of 50 patients
Effect of 3D-Printed Models on Cadaveric Dissection in Temporal Bone Training
OBJECTIVE: Mastoidectomy is a cornerstone in the surgical management of middle and inner ear diseases. Unfortunately, training is challenged by insufficient access to human cadavers. Three-dimensional (3D) printing of temporal bones could alleviate this problem, but evidence on their educational effectiveness is lacking. It is largely unknown whether training on 3D-printed temporal bones improves mastoidectomy performance, including on cadavers, and how this training compares with virtual reality (VR) simulation. To address this knowledge gap, this study investigated whether training on 3D-printed temporal bones improves cadaveric dissection performance, and it compared this training with the already-established VR simulation. STUDY DESIGN: Prospective cohort study of an educational intervention. SETTING: Tertiary university hospital, cadaver dissection laboratory, and simulation center in Copenhagen, Denmark. METHODS: Eighteen otorhinolaryngology residents (intervention) attending the national temporal bone dissection course received 3 hours of mastoidectomy training on 3D-printed temporal bones. Posttraining cadaver mastoidectomy performances were rated by 3 experts using a validated assessment tool and compared with those of 66 previous course participants (control) who had received time-equivalent VR training prior to dissection. RESULTS: The intervention cohort outperformed the controls during cadaver dissection by 29% (P < .001); their performances were largely similar across training modalities but remained at a modest level (~50% of the maximum score). CONCLUSION: Mastoidectomy skills improved from training on 3D-printed temporal bone and seemingly more so than on time-equivalent VR simulation. Importantly, these skills transferred to cadaveric dissection. Training on 3D-printed temporal bones can effectively supplement cadaver training when learning mastoidectomy