OrthopaedicsDr. Puneet GirdharSpinal Surgery Technology

Vice Chairman & Head - Ortho Spine, MIS & Robotic Spine Surgery, BLK-Max Super Speciality Hospital, New Delhi

Part 3 of 8 in Advances in Spinal Surgery Technology

Robotic Spine Surgery: Accuracy and Outcomes

May 26, 2024

Robotic assistance has moved spine surgery from a skilled manual craft to a measurably more precise, and measurably safer, procedure.

Accuracy, blood loss and recovery

Without a robot, screw placement accuracy in spine surgery runs around 93%; with robotic assistance, this rises to 100%. Robotic surgery also reduces blood loss and hospital stay, and patients are often walking the day after a spinal fixation procedure.

How robotic screw placement actually works

The process starts with a CT scan of the patient, followed by robotic planning displayed on screen. The robot then moves into the planned position, a small cut is made through the robotic guide, and the screw is placed under live imaging - the planned position is shown in one colour and the final screw position in another, confirming an exact match before the surgery is considered complete.

This article is based on a Jivo Masterclass session conducted by Dr. Puneet Girdhar, Principal Director & Head, Ortho Spine, MIS & Robotic Spine Surgery, BLK-Max Super Speciality Hospital, New Delhi. The article has been summarised with the assistance of an AI tool from the original masterclass recording. Watch the full Masterclass recording

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This guide is based on a live Jivo Masterclass: Dr. Puneet Girdhar taught doctors across Africa on May 26, 2024.

FROM THE LIVE Q&A

MO

Moderator

Given that a normal disc diameter is around 14-20mm, what is the limit at which surgery is needed - for example, for someone with only 7mm who is still working?

PG

Dr. Puneet Girdhar

Don't measure the millimetres, measure the patient's symptoms. Surgery depends on the patient's symptoms and what treatment has already been tried, not on the measurement alone. If medicine and physiotherapy haven't relieved symptoms, surgery to extend the fusion may be needed regardless of the exact disc height.

See all 9 questions from this masterclass →

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Frequently Asked Questions

What are the new advancements for conditions like quadriplegia in the cervical spine?

The first step with quadriplegia is always to find out the underlying cause. Once the cause is identified, it can potentially be addressed and removed.

What would someone need to do to become your assistant?

Rather than becoming an assistant, doctors can partner through Jivo's training programmes, which bring fellows from Africa to train directly - the framing is colleague and partner, not assistant.

Does nutrition play any role in spine health, and is a nutritional deficiency a risk factor for developing spine problems?

The spine is made up of three main components, each with its own nutritional needs: bones need calcium, vitamin D and sunlight; muscles and tissues need exercise and good protein in the diet; nerves need exercise and vitamin B12. Altogether, a good lifestyle, diet and exercise are what keep the spine healthy.

At what point can we say scoliosis bracing has failed and surgery is indicated? Also, for the interbody cage, can long plates not be used instead?

For idiopathic scoliosis, once the curve goes beyond 40 to 45 degrees, bracing has failed and surgery is indicated. On plates: long plates such as Steffee plating are no longer used - for the last 15 to 20 years, the standard has been transpedicular screws with a titanium or PEEK cage instead.

What are the possible obstacles to performing minimally invasive spine surgery in tropical, resource-limited areas?

There is no real obstacle - the obstacle is in the mind. As an example, three minimally invasive spine surgeries (two of them revisions of prior laminectomies) were performed in Abuja, Nigeria over the last two months, and all three patients were walking the next day; this has already led to inquiries from ten different hospitals wanting to start similar programmes. It is a matter of local doctors taking the initiative, supported by training and partnership.

How accurate is robotic spine surgery compared to manual surgery?

Manual screw placement accuracy is around 93%; robotic-assisted placement reaches close to 100%, with less blood loss and a shorter hospital stay.

How does robotic screw placement work?

A CT scan is taken, the robot plans the trajectory on screen, moves into position, and the screw is placed through a small cut under live imaging that confirms the final position matches the plan.

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