Month: August 2021

This is Part 5 on Spondylolistheses and we have gone from the mild deformities and progressing to the severe grades. In this post we will present a Type 5 High Grade deformity.  This means the patient is compensating for the spondylolisthesis slippage, by rolling the pelvis backwards.  In the Type 5 deformities it means the […]

The several posts were on Low-Grade Slip/Spondylolisthesis Fusion Surgery, which are done for Grade 1 and 2 severity slips. We will now move onto High-Grade Slip/Spondylolisthesis Fusion Surgery…..which if you recall are for Grade 3-5 severity slips One of the best publications on the treatment of High-Grade Spondylolistheses is shown in the below two figures: […]

The case in the last post is a Low-Grade Slip/Spondylolisthesis Fusion Surgery. The cage which is placed in the front add to the strength of the repair, by minimizing deflection due to cantilever forces. The below link explain this: https://en.wikipedia.org/wiki/Deflection_(engineering) However, sometimes a cage isn’t needed or simply cannot be placed into the front of […]

To restate, a Low-Grade Spondylolisthesis is one which is a Meyerding Grade 1 or 2. This means the vertebra has slipped forward up to 50% of the vertebral body. To use a football analogy it hasn’t crossed the 50-yard line. Below is a Grade 2. We typically call spondylolistheses “slips”.   What is the most […]

The last 6 posts have been discussing spondylolysis or pars fractures, which is crack in the posterior part of the spine which causes low back pain. If the vertebra slides forward (see below diagram), it is no longer spondylolysis, it is now called “spondylolisthesis” which means “vertebral slippage”.   There are 6 types of spondylolistheses, […]