Collagen Dura Membrane Handling: What Surgeons Feel in the OR

Surgeons judge a collagen dura membrane largely by feel: how it conforms to the brain or cord surface, how it behaves once wet, how cleanly it trims, how it takes a suture, whether it can be repositioned and whether orientation matters. A rep's job is to let the surgeon test these characteristics honestly, not to describe them in superlatives.

Handling is where many dural graft evaluations are decided. A surgeon may read the documentation carefully, but the moment that counts is when they pick up the membrane with forceps and place it. This article explains the characteristics surgeons typically assess, how to demonstrate them fairly, and how DESU's DURASHEET and DECOLL fit the conversation. For the OR team's side, see our guide to dural graft handling in the operating room.

Why does handling matter so much?

Dural closure is often the last delicate step of a long operation. The surgeon may be tired, the field may be deep, and the tissue may be fragile. A graft that behaves predictably makes that step calmer; one that folds, tears or slides makes it harder. Surgeons remember both.

Handling preferences are also personal. Two experienced surgeons can handle the same membrane and reach opposite conclusions, one preferring a softer, more conforming graft and the other a firmer one that is easier to manipulate. Neither is wrong. That is why a rep should never tell a surgeon how a product "feels"; the surgeon decides that.

Handling also influences how quickly a surgeon adopts a product. A graft that feels right in the first few cases is likely to stay. One that requires a change in technique faces a much harder path, however good its documentation.

Which characteristics do surgeons assess?

Surgeons rarely use a formal checklist, but their assessment usually covers the same points.

DESU does not publish numerical values for characteristics such as strength or thickness, so a rep should not quote any. The point of the demonstration is for the surgeon to form their own judgment.

Context matters too. A membrane that feels easy to handle on a flat tray may behave differently in a deep posterior fossa exposure or a narrow spinal field. Where possible, ask the surgeon which procedure they have in mind and shape the demonstration around it, for example by showing how the graft can be trimmed and passed for a small spinal defect.

How do DURASHEET and DECOLL differ in handling terms?

Both products are made from pure Type I bovine collagen and are supplied ready to use and gamma sterilized, in four sizes each. They differ in intended use.

DURASHEET is a suturable dural graft matrix that can be used on both surfaces. For a surgeon, that means two things: the graft can be fixed to the dura with sutures, and the team does not need to identify an up side before placement. That removes one source of hesitation at the moment the graft is passed.

DECOLL is a collagen dura membrane intended for onlay use. Surgeons who use onlay technique will focus on conformability, how the membrane settles over the defect and its edges, and how it behaves in contact with fluid. The IFU describes how it should be placed.

How should a rep run a handling demonstration?

A good demonstration is short, practical and honest:

• Use demonstration units clearly marked as not for clinical use, and follow the hospital's rules about where they may be handled.
• Bring the instruments the surgeon normally uses, or ask the OR team to provide them.
• Follow the IFU for any step involving contact with fluid, so the demonstration reflects real use.
• Let the surgeon handle the product without commentary for the first minute.
• Ask open questions afterwards: "How did that compare with what you use now?"
• Note the surgeon's comments and share them with DESU, positive or negative.

Avoid performing tricks with the product, such as stretching it to its limit or showing it in conditions it would never meet in surgery. Surgeons see through that quickly.

Should the scrub team join the demonstration?

Yes, whenever possible. The scrub nurse or technician will handle the graft before the surgeon does, and their impression of the packaging and the way the membrane comes off the tray matters. A demonstration that includes them also makes the later in-service easier, because the team already knows the product. Ask the OR educator whether a joint session can be arranged, rather than meeting the surgeon alone.

What should a rep say when a surgeon does not like the feel?

Sometimes a surgeon will simply prefer the handling of another product. That is a legitimate clinical preference. Ask what specifically they disliked: stiffness, thickness, behavior when wet, or something else. That information is valuable to DESU and may help identify whether the other DESU membrane would suit them better.

If the surgeon's preference remains, accept it gracefully. A rep who respects a "no" on handling keeps the door open for other products and for future conversations.

Feedback on handling is also useful to the manufacturer. DESU designs and manufactures its products in its own cleanrooms, and specific, well-described comments from surgeons help its team understand how the membranes are perceived in different settings. Pass feedback on accurately, without softening the negative points.

How does handling connect to the OR team?

Surgeons are not the only people who handle the graft. The circulator retrieves and opens it, and the scrub nurse or technician receives it and passes it. Their experience matters too:

Opening and passing

The package should open cleanly and allow aseptic presentation. The scrub team should be able to pick up the membrane without it folding on itself.

Product identification

Where both DURASHEET and DECOLL are stocked, the team must be able to tell them apart quickly. Clear shelf labels and a short in-service help.

Feedback

Ask the scrub team for their impressions as well as the surgeon's. They often notice handling details that surgeons take for granted.

What happens after the demonstration?

A positive handling demonstration is a starting point, not an endpoint. Handling on a model is not the same as handling in a live case, with bleeding, CSF and time pressure. Surgeons know this and will want to confirm their first impression in real procedures. The next step is usually a structured evaluation in real cases, with feedback from the surgeon and the OR team. Our article on running a dural graft evaluation describes how to set one up.

Talk to a DESU product specialist

If you want to arrange a handling demonstration of DURASHEET and DECOLL for surgeons or OR teams, DESU's product specialists can advise on demonstration units, IFU and training material, and discuss what your market requires. Contact sales@desu.tr, use the contact page, or request a quote.