Low-cost simulation models in Urology: a systematic review of the literature.

INTRODUCTION: Simulation models have been found to be effective and valid for training in Urology. Due to increasing costs of surgical training, there is a need for low-cost simulation models to enable Urology trainees to improve their skills. MATERIAL AND METHODS: A literature review was performed using the PubMed and Embase databases until March 2020. A total of 157 abstracts were identified using the search criteria, of which 20 articles were identified describing simulation models for Urology training. Articles reviewed described simulation models created from materials costing less than $150. Data was extracted from the relevant articles in order to critically assess each paper for validity, ease of construct and educational impact. RESULTS: Models were found pertaining to suprapubic catheterization (6), cystoscopy (3), percutaneous nephrolithotomy (5), scrotal examination (1), circumcision (1), ureteroscopy (1), transurethral resection of the prostate and bladder (2), and open prostatectomy (1). 18/20 (90%) assessed for either face, content, or construct validity. None of the papers evaluated assessed for transferability of skills to performance in real patients. CONCLUSIONS: A plethora of low-cost simulation models for urological procedures are described in the literature, many of which can be easily constructed from cheap and accessible materials. However there is a need for further efforts to validate or assess for transferability of skills to clinical practice.

Benign tumours of the bone: A review.

Benign tumours of the bone are not cancerous and would not metastasise to other regions of the body. However, they can occur in any part of the skeleton, and can still be dangerous as they may grow and compress healthy bone tissue. There are several types of benign tumours that can be classified by the type of matrix that the tumour cells produce; such as bone, cartilage, fibrous tissue, fat or blood vessel. Overall, 8 different types can be distinguished: osteochondroma, osteoma, osteoid osteoma, osteoblastoma, giant cell tumour, aneurysmal bone cyst, fibrous dysplasia and enchondroma. The incidence of benign bone tumours varies depending on the type. However, they most commonly arise in people less than 30 years old, often triggered by the hormones that stimulate normal growth. The most common type is osteochondroma. This review discusses the different types of common benign tumours of the bone based on information accumulated from published literature.