KALTOSTAT ROPE

Cavity wounds, sinus tracts, and deep wound pockets present a specific management challenge: the wound extends below the surface in three dimensions, and a flat sheet dressing cannot follow the wound depth or maintain contact with the wound walls. An alginate rope that can be introduced into the cavity and gel in place throughout the wound space provides wound contact at depth in a way that surface formats cannot. Kaltostat Rope is a calcium sodium alginate rope from ConvaTec for cavity wound packing. 2g. Secondary dressing required. Cavity packing safety rules apply. No prescription needed.

Kaltostat Rope is a Class IIb regulated medical device from ConvaTec. It is the rope format of the Kaltostat alginate range, using the same calcium sodium alginate material as Kaltostat Dressing but formed into a continuous rope structure rather than a flat sheet. The rope can be introduced into wound cavities, sinus tracts, and tunnelling wounds where the wound extends beyond the surface opening and requires wound contact material at depth.

The calcium sodium alginate in Kaltostat Rope is identical in composition to that used in the flat Kaltostat Dressing. It carries the same ion exchange gel formation mechanism and the same haemostatic properties. When wound exudate from the cavity walls and wound bed contacts the alginate rope, sodium ions from the wound fluid exchange with calcium ions in the fibre structure. The fibre absorbs water and transforms into a cohesive gel that fills the wound space, maintains moist wound contact throughout the cavity, and supports exudate management from the wound depth.

Kaltostat Rope is a primary wound contact material. It has no outer layer, no adhesive component, and no secondary absorbent layer. A secondary dressing must always be applied over the wound opening after the rope has been introduced into the cavity. The secondary dressing retains the rope in position, protects the wound from external contamination, and manages any exudate that tracks back through the wound opening.

Kaltostat Rope is available in a 2g unit. Cavity wound management should always be carried out under clinical supervision.

Kaltostat Rope must always be packed loosely. Never compress the rope tightly into a wound cavity. Always leave a visible length of rope outside the wound opening at all times. Count the rope in and document the application. At each change, count the rope out and confirm full retrieval before applying a new rope. If the rope cannot be retrieved, do not attempt to remove it by force. Irrigate thoroughly with sterile saline and seek clinical assessment immediately. Apply a secondary dressing over the wound opening after the rope is in place.

Ion Exchange and Gel Formation in the Cavity

The calcium sodium alginate rope absorbs wound exudate from the cavity walls and wound bed through the same ion exchange mechanism as the flat Kaltostat Dressing. Sodium ions from wound fluid displace calcium ions within the alginate fibre structure. The fibre absorbs water as the ion exchange proceeds and transforms from a dry twisted rope into a soft cohesive gel. This gel fills the wound space, conforms to the cavity dimensions, and maintains a moist wound contact environment throughout the wear period. The gel holds absorbed exudate within its structure rather than allowing it to pool in the cavity.

Wound Contact at Depth

The primary clinical advantage of the rope format over a flat sheet in cavity wounds is the ability to maintain wound contact at depth. A flat sheet dressing applied over the wound opening bridges the cavity and contacts only the wound surface immediately beneath the opening. The cavity walls at depth receive no wound contact material. The rope is introduced into the cavity so that the entire accessible wound length is in contact with alginate. As the rope gels throughout the cavity, the wound contact environment extends to the full depth of the cavity that the rope reaches.

Haemostatic Properties

Kaltostat Rope carries the same calcium-mediated haemostatic activity as Kaltostat Dressing. The calcium ions released during ion exchange at the wound surface activate components of the coagulation cascade locally. For cavity wounds with some minor bleeding from the wound walls, this property supports local haemostasis alongside exudate management. Kaltostat Rope is not a treatment for significant bleeding and is not appropriate as the sole management for heavily bleeding wounds.

Cohesive Retrieval

The alginate rope maintains its cohesive structure as it gels during the wear period. At removal, the gelled rope should separate from the cavity walls and wound bed as one continuous piece when retrieved from the accessible end. Irrigating the wound with sterile saline before removal softens the gel and facilitates separation from the wound surface. The cohesive nature of the gelled rope supports complete retrieval without the rope fragmenting inside the wound cavity.

Before Application

• Wash hands and use gloves.
• Clean the wound cavity with sterile saline.
• Prepare the secondary dressing before opening the Kaltostat Rope packaging.
• Assess the cavity depth and dimensions to determine how much rope is needed.

Packing the Cavity

• Remove the Kaltostat Rope from its packaging.
• Introduce the rope loosely into the wound cavity from the accessible opening.
• Do not press or compress the rope tightly into the cavity.
• Fill the accessible wound depth, leaving a clearly visible length of rope outside the wound opening at all times.
• Never introduce the full rope length inside the cavity. Retrieval access must always be maintained.
• Apply the secondary dressing over the wound opening immediately.
• Document the number of ropes used and confirm the retrieval end is accessible.

Removal

• Irrigate the wound cavity thoroughly with sterile saline before attempting removal.
• Retrieve the rope by the accessible end outside the wound.
• Confirm the full rope has been removed.
• Document successful retrieval.
• If any part of the rope cannot be retrieved, stop immediately. Do not attempt further extraction. Irrigate again and seek clinical assessment before any further dressing application.

Irrigate before every removal. Even when the rope has been packing a heavily exuding cavity, some sections may have dried against cavity walls during the wear period. Saline irrigation throughout the cavity before retrieval is not optional. A dried alginate rope removed without irrigation can disrupt healing cavity walls.

Kaltostat Rope 2g

Kaltostat Rope is available in a 2g unit. The 2g weight describes the amount of calcium sodium alginate in the rope rather than a fixed physical length. For most cavity wounds of moderate depth, one 2g rope provides sufficient material to fill the accessible wound space with retrieval length remaining outside the wound. For deeper or larger cavities, more than one rope may be used per change. Seek clinical guidance on how many ropes to use for a specific wound, as this depends on the cavity dimensions assessed at each change.

Cavity Packing Safety Rules: All Apply to Kaltostat Rope

• Always pack loosely. Tight packing interferes with exudate drainage and can cause pressure injury within the cavity.
• Always leave retrieval length outside the wound opening. Never fully insert the rope inside the cavity.
• Count in and document. Count out and confirm retrieval at every single change.
• Irrigate before removal every time.
• If the rope cannot be retrieved, stop, irrigate, and seek clinical assessment immediately.

Do Not Use Kaltostat Rope If

• The wound is infected and requires antimicrobial management as the primary clinical priority. Kaltostat Rope has no antimicrobial action.
• The cavity is dry or minimally exuding. Alginate requires exudate to activate gel formation.
• Known sensitivity to alginate or seaweed derived products.

Adverse Effects

• Wound desiccation if used in a cavity producing insufficient exudate to activate the gel.
• Wound trauma if the rope is removed without prior saline irrigation. Always irrigate first.

Wounds Where Kaltostat Rope Is Appropriate

• Moderately to heavily exuding cavity wounds, sinus tracts, and tunnelling wounds where wound contact at depth is the clinical requirement and alginate gel formation is the wound management approach
• Post-surgical cavity wounds with exudate requiring managed packing
• Pressure ulcer cavities at higher grades where the wound has depth requiring wound contact material throughout
• Any cavity wound type where the haemostatic properties of calcium sodium alginate are also clinically useful alongside cavity exudate management
• Adults and children under clinical supervision

Kaltostat Rope vs Kaltostat Dressing

Both products use the same calcium sodium alginate material and share the same ion exchange gel formation and haemostatic properties. The difference is the physical format and the wound type each is designed for. Kaltostat Dressing is a flat sheet for wound surface application, suited to flat or lightly contoured wound beds. Kaltostat Rope is a continuous rope for introduction into wound cavities, sinus tracts, and deep wounds where a flat sheet cannot provide wound contact at depth. Choose the format based on the wound geometry rather than the wound type.

Kaltostat Rope is a regulated medical device and does not require a prescription. The 2g unit is available from Pharmacy Planet without a clinical consultation.

Our pharmacists can advise on Kaltostat Rope and on appropriate secondary dressings for cavity wound management.

Cavity wound management requires clinical supervision. The wound dimensions, the amount of rope to use per change, and the progression of the wound all require regular clinical assessment by a tissue viability nurse, district nurse, or GP.

• Store in a cool, dry place away from direct heat and sunlight.
• Do not store above 25 degrees C.
• Keep in original sealed packaging until immediately before use.
• Do not use if packaging is damaged.
• Check expiry date before use.
• Apply as soon as the packaging is opened.
• Keep out of reach of children.
• Dispose of used dressings as clinical waste.

Pharmacy Planet is a GPhC registered online pharmacy. Kaltostat Rope is a genuine ConvaTec product stocked through regulated UK supply chains.

Our pharmacists can advise on cavity wound packing products and on appropriate secondary dressing selection for cavity wound management.

References

1. ConvaTec. Kaltostat Rope — Instructions for Use. ConvaTec. https://www.convatec.com. Accessed June 2026.
2. National Institute for Health and Care Excellence. Wound care products: selection and prescribing. https://www.nice.org.uk. Accessed June 2026.
3. Wounds UK. Best Practice Statement: Wound exudate — effective assessment and management. https://www.wounds-uk.com. Accessed June 2026.
4. NHS. Pressure sores (pressure ulcers). https://www.nhs.uk/conditions/pressure-sores. Accessed June 2026.