Chief, Neuro Spine Surgery & Additional Director, Neurosurgery, Artemis Hospitals, Gurgaon, India
Part 4 of 11 in Recent Advances in the Field of Spine Surgery
Spine Surgery for Osteoporotic and Morbidly Obese Patients
July 5, 2026
Osteoporotic patients were once considered too high-risk for spine surgery because their bone quality couldn't hold a screw securely. Fenestrated screws now allow bone cement to be injected directly through the screw into the surrounding bone, giving a substantially stronger construct, carefully prepared to a specific consistency so it doesn't migrate into the venous system. Patients who would previously have been bed-bound can now undergo MISS and mobilise the following day.
Morbidly obese patients present a different problem: a standard C-arm can't see through the soft tissue to the bone underneath. Dr. Rajan describes the O-arm's advantage as the difference between digging a wide pit to reach underground water and simply inserting a bore tube: the heavier the patient, the more they benefit from MISS, since an equivalent open operation would mean an extremely long incision, major blood loss and serious retraction difficulty for the surgical team.
This guide is based on a live Jivo Masterclass — Dr. S. K. Rajan taught doctors across Africa on July 5, 2026.
FROM THE LIVE Q&A
Dr. Okitondu Daniel, Professor, Medical University, DRC
What hygiene and precautions should be observed after spine surgery?
Dr. S. K. Rajan
First, preventing infection: making surgery as minimally invasive as possible, prophylactic antibiotics, and early removal of the urinary catheter, since UTIs are a common source of secondary infection. Second, wound care: dressing changes every second day until suture removal at day ten, sponge bathing rather than full immersion until healed. Third, movement precautions: for three months after discectomy or fusion, no lifting weights, no sitting on the floor, no squatting or forward bending; in the first month, no sitting or travelling continuously for more than 30 minutes without a break. We take follow-up X-rays every month for three months, then every three months up to a year.
Frequently Asked Questions
What is the timeline for an athlete wanting to return to active training after spine surgery?▼
For a sportsperson or someone with high physical demands, my approach leans towards spinal fixation rather than decompression alone, for greater long-term stability — consistent with how athletes like Tiger Woods have returned to high-level sport after spine surgery. The realistic return-to-full-sport timeline is about one year, with roughly nine months devoted to rehabilitation under sports-specialist physiotherapists focused on core training and back strengthening. The protocol is tailored to the individual, but the principle is the same: build a strong muscular support system before returning to load.
What are your recommendations for spine health in office workers with long sedentary hours, and for heavy weightlifters? Is there an age dimension?▼
For office workers: correct sitting posture throughout, back support maintained, screen at eye level, the angle between thigh and lower leg kept greater than 90 degrees, with regular breaks. I recommend pelvic tilts, leg raises, the Cobra pose and the Superman pose for everyone in this group. For heavy weightlifters with back pain but a largely normal MRI, return to lifting within six to eight weeks is reasonable; but with a prolapsed disc, the annulus tear needs six to nine months, sometimes up to a year, to heal, and early heavy loading risks the prolapse escalating into a full extrusion requiring surgery. For patients beyond 60, protein supplementation and resistance training to maintain paraspinal muscle mass become particularly important, since postural slouching and spinal deterioration are largely consequences of muscular atrophy.
For a patient with multiple disc prolapses at both cervical and lumbar levels, is minimally invasive surgery possible, or is open surgery required?▼
Multi-level thoracic stenosis and multi-level lumbar disc disease can both be managed with MISS, including fixation at two or three levels, and technology now makes MISS technically feasible at four or even five levels — though each patient has to be assessed individually. As a broad guide: one- or two-level lumbar disease, MISS without question; three to four levels, roughly half our patients proceed with MISS and half need open surgery, mainly for anatomical reasons, not because MISS is inferior. For sequencing combined cervical and lumbar disease: if there's cervical cord compression causing weakness, we operate on the cervical spine first; if the cervical issue is just radiating arm pain without cord compression, we address the lumbar spine first.
What is the standard treatment for scoliosis with a Cobb angle greater than 10 degrees?▼
A Cobb angle under 10 degrees isn't classified as scoliosis at all. Between 10 and 30 degrees, observation with serial X-rays is appropriate — the curve is largely safe at this stage. The tipping point for a surgical discussion is a Cobb angle approaching 40 degrees; below that, there's generally no urgent surgical indication. Beyond the angle itself, the second key factor is whether the curve stays within the coronal zone of stability — as long as it does, it's relatively safe, but once vertebral segments shift outside that zone, the curve is at high risk of rapid progression and surgery becomes necessary.
Doctors who don't perform MISS themselves often face a perception battle when counselling patients. How should they address patient fears?▼
The biggest source of confidence for a patient is seeing or hearing from patients who have undergone the procedure — testimonials describing next-day mobilisation are very powerful, and the Artemis Hospitals website carries many of them. Beyond that, as technology spreads to more centres and results accumulate, outcomes will speak for themselves. The current primary limitation is availability of technology, not the evidence.
Can osteoporotic patients undergo spine surgery safely?▼
Yes. Fenestrated screws now allow bone cement to be injected directly through the screw into the surrounding bone, giving a substantially stronger construct in patients whose bone quality would previously have made screw fixation unreliable.
Why were osteoporotic patients once considered too high-risk for spine surgery?▼
Their bone quality could not hold a screw securely, so fixation was unreliable.
How is bone cement used safely during spine screw fixation?▼
It is prepared to a specific consistency so that it does not migrate into the venous system once injected.
Is minimally invasive spine surgery an option for morbidly obese patients?▼
Yes, and it becomes more beneficial as body weight increases: the heavier the patient, the more they benefit from MISS, since an equivalent open operation would require an extremely long incision, major blood loss, and serious retraction difficulty.
Why can't a standard C-arm image the spine clearly in obese patients?▼
A standard C-arm cannot see through the soft tissue to the bone underneath, which is the specific problem the O-arm's 3D imaging is built to overcome.
In This Series: Recent Advances in the Field of Spine Surgery
- 1.Recent Advances in Spine Surgery
- 2.Imaging and Navigation: From 'Cut First, See Later' to 'See First, Cut Precisely'
- 3.Minimally Invasive Lumbar Fusion: What Patients Can Expect
- 4.Spine Surgery for Osteoporotic and Morbidly Obese Patients
- 5.Treating Spondylolisthesis Through Keyhole Surgery
- 6.Complex Spine Cases Treated Minimally Invasively
- 7.Robotic vs Navigation-Guided Spine Surgery
- 8.'99% Safe' Doesn't Mean '99% Successful'
- 9.Surgery or Pain Management? How Spine Surgeons Decide
- 10.Recovering From Spine Surgery: Precautions and Return to Sport
- 11.Scoliosis: When Does a Curved Spine Need Surgery?