An operation for spinal cord compression across several levels of the neck. Rather than removing the bone at the back of the canal or fusing the segments together, each lamina is cut on one side and hinged open like a door, then held there — the canal is enlarged and the neck keeps moving. It depends on the neck still holding its natural forward curve.
Cervical myelopathy is compression of the spinal cord itself, not of a single nerve root, and by the time it needs an operation it is usually squeezing the cord at three, four or five levels at once. That count is what shapes the choice of operation: dealing with one level and dealing with five are different problems.
Laminoplasty answers it from behind, and it answers it by making room rather than by taking anything away. Each lamina — the arch of bone at the back of the canal — is cut through on one side and thinned on the other so that it bends. The arch is then swung open on the thinned side and propped there with a small plate. The roof of the canal is now sitting further back than it was, and the cord has space it did not have.
Nothing is fused. The joints that let the neck turn and bend are left alone, and no screws cross a moving segment.
Open-door laminoplasty. Axial view of the cervical canal with the lamina hinged open on one side and secured with a plate, showing the enlarged canal and the spinal cord repositioned away from the anterior compression.
Multilevel compression of the cervical spinal cord, in a neck whose alignment still works with the operation. Symptoms of myelopathy are often mistaken for ordinary ageing, which is why they are listed here in the terms patients actually use.
Myelopathy is a diagnosis made on examination and confirmed on MRI. Neck pain on its own is not myelopathy, and this is not the operation for it.
Because over several levels, fusion starts to cost more than it returns. Reaching three or four levels from the front means removing three or four discs, and each additional level raises the chance that one of them fails to knit and lowers what is left of neck movement. Multilevel anterior surgery also carries a meaningful rate of swallowing difficulty afterwards.
Laminoplasty sidesteps both. There is no graft that has to fuse, so there is no non-union to worry about; there is no anterior dissection, so the swallowing tube and the voice box are never near the operation; and the neck keeps most of its motion.
That is not an argument that fusion is the worse operation. It is an argument that the number of levels, and the alignment of the neck, decide which one applies — and where a fusion is what the neck needs, that is the operation done.
A kyphotic neck rules it out, and the reason is worth understanding rather than taking on trust. The compression in cervical myelopathy is mostly in front of the cord. Laminoplasty does not remove it — it opens the back of the canal so the cord can float backwards, away from it. In a neck that has lost its curve and bends forward, the cord is already stretched over the front of the canal and there is nowhere backwards for it to go. The room gets made and the cord does not move into it.
Significant neck pain is the second one. Laminoplasty is an operation for the cord, not for the neck, and it does not reliably help axial pain — it can leave it somewhat worse. A patient whose main complaint is a painful neck is being offered the wrong operation.
This list is not exhaustive and none of it replaces a consultation. Alignment in particular is measured on standing X-rays, not judged from how the neck looks.
These are the two posterior answers to the same problem, and the choice between them turns mostly on alignment and on neck pain.
Both are operations Dr. Zaidi performs. Neither column is the better operation in the abstract — see how the approach is chosen.
The patient is positioned face down with the head held and the neck set in its lordosis. Spinal cord monitoring is running before positioning is finalised, so that any change caused by the position itself is seen immediately rather than discovered later.
A midline incision at the back of the neck. The muscles are moved off the laminae over the levels being opened, with the attachments at the top of the construct protected — those are part of what holds the neck upright afterwards.
A trough is cut on one side through the outer layer of bone only, leaving the inner layer intact so it bends rather than breaks. This is the side the door will swing on, and getting its depth right is the technical heart of the operation.
The opposite side is cut through completely and the laminae are eased open as a unit. An ultrasonic bone scalpel is useful here: it cuts bone but does not catch soft tissue, which matters when the cutting edge is millimetres from a compressed cord.
Small plates are fixed across the opened side at each level to hold the door where it is. Without them the arch tends to close again, and a canal that re-closes is the operation undone.
If a nerve root is compressed as well as the cord, its exit is opened at the same sitting. Only as much of the joint is removed as the root needs — taking more would destabilise the level that has deliberately not been fused.
Open-door laminoplasty. The hinge trough, the opposite-side cut, the laminae easing open as a unit, the plates going on, and the cord drifting backwards into the enlarged canal.
The purpose of surgery for cervical myelopathy is usually to stop it getting worse. A compressed spinal cord is being injured slowly, and decompressing it halts that. Some patients also recover function they had lost — often hand dexterity or steadiness on their feet — and that is a welcome outcome rather than the one being promised.
Figures are general ranges from the surgical literature, not guarantees for any individual case. Shoulder weakness from irritation of the C5 nerve root is a recognised complication of posterior cervical decompression — it is uncommon, usually appears in the first days after surgery, and in most cases recovers over weeks to months. It is discussed as part of consent.
Candidacy here turns on measurements — the curve of your neck on a standing X-ray and where the compression sits on MRI. Bring any imaging you already have; most of the question is answered before the conversation starts.