Related Experiment Video
Updated: Jan 27, 2026

Enucleation of the Prostate for the Treatment of Benign Prostatic Hyperplasia Using a 980 nm Diode Laser
Published on: May 5, 2020
An Updated Protocol for the Treatment of Condylar Hyperplasia: Computer-Guided Proportional Condylectomy
Salvatore Sembronio1, Alessandro Tel2, Fabio Costa1
1Assistant Professor, Maxillofacial Surgery Department, Academic Hospital of Udine, Department of Medicine, University of Udine, Udine, Italy.
Purpose:
To present an updated protocol for proportional condylectomy in which virtual surgical planning and 3-dimensional (3D) printing allow precise definition of the osteotomy level.
Materials And Methods:
Three-dimensional mirroring was performed to generate a virtual replica of the healthy hemimandible, which was subsequently aligned and overlapped with the actual mandible to estimate the level for condylectomy. A custom-fitted 3D printed surgical guide was modeled for the condylar head to reproduce the virtual plan in the surgical scenario. The updated protocol for computer-guided condylectomy was applied to 7 patients.
Results:
All patients were followed for 12 months. Surface deviation color maps showed a strong correspondence between the virtually calculated condylectomy and the surgical outcome achieved with the aid of the surgical guide. No cases of condylar hyperplasia recurrence were observed.
Conclusion:
An updated protocol based on accurate 3D analysis was performed by virtual surgical planning and 3D printing. Virtual surgical planning allows the precise definition of the level of condylectomy, and custom-made 3D printed cutting guides are useful to reproduce virtual measurements during surgical maneuvers.
Related Concept Videos
Sample Proportion and Population Proportion
Testing a Claim about Population Proportion
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
Parkinson's Disease: Treatment
Parkinson's Disease is primarily a result of the loss of dopaminergic neurons in the substantia nigra pars compacta. The cornerstone of...
Alzheimer's Disease: Treatment
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Treatment Resistant Cancers

