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OpSite* Post-Op

OpSite Post-Op offers the following advantages:

Product Information

This information is intended for Healthcare Professionals only.



OpSite* Post-Op is a revolutionary post-operative dressing combining a high Moisture Vapour Transmission Rate (MVTR) film and the cushioning and absorbency of a low adherent pad together with an easy application carrier system. The hydrophilic polyurethane film on OpSite Post-Op has REACTIC* properties that 'switch on' in the presence of moisture allowing any excess to transpire into the atmosphere.



OpSite Post-Op offers the following advantages:

  Bacterial barrier
Protects the site against extrinsic contamination, reducing the risk of infection by bacteria.





Waterproof film
Patient can shower with the dressing in situ.
Low allergy adhesive
A unique grid pattern adhesive minimising the risk of an allergic response.
Highly absorbent pad
Rapidly absorbs serous exudate. Allows lateral spread across the pad to maximise absorbency and reduce the risk of skin maceration.
Low adherence
The wound contact layer enables exudate to pass through to allow minimal trauma on removal.
Comfortable and non obtrusive for the patient.
The REACTIC* film has a unique molecular structure with an MVTR of 11000g/m 2 /24hr 3 , making it significantly more permeable to water vapour than ordinary films in the presence of moisture.
Round corners/thin film
Reduces occurrence of lifting or snag, helping the dressing to stay in place for longer.



Ordering Information

CodeDescription Items per unit Refer Availability
66000708 6.5cm x 5cm bx/100  
66000709 9.5cm x 8.5cm bx/20  
66000710 12cm x 10cm bx/10  
66000712 15.5cm x 8.5cm bx/20  
66000713 20cm x 10cm bx/20  
66000714 25cm x 10cm bx/20  
66000715 30cm x 10cm bx/20  
66000716 35cm x 10cm bx/20  
36104620 6.5cm x 5cm 1 doz x 5 pcs ##
36104520 9.5cm x 8.5cm 1 doz x 3 pcs ##

Post-Op Technology

This information is intended for Healthcare Professionals only.







The OpSite* Post-Op dressing consists of three components:

  1. A High MVTR (Moisture Vapour Transmission Rate) polyurethane film coated with a pattern spread acrylic adhesive
  2. An absorbent post-operative pad
  3. A wound contact layer

High MVTR Polyurethane film

The OpSite Post-Op film layer has a minimum MVTR value of 11000g/m 2 /24hrs at 37°C in the presence of moisture. 3


Mode of Action

The Reactic* hydrophilic polyurethane film used on OpSite Post-Op 'switches on' in the presence of moisture to allow vapour to pass through the blocks of polymer that make up the film, and to transpire off into the invironment.

The low allergy acrylic adhesive is pattern spread, and because the full surface of the film is not coated with adhesive, this aids this process of fast transpiration of moisture - and also helps to minimise pain on removal.

The switching action allows for faster evaporation of moisture and fluid (3-4 times faster than standard film dressings) from beneath the dressing, minimising the risk of skin maceration. The action is one-way, water and/or vapour from the outside environment will not pass back through the dressing.


Absorbent Post Operative pad

The Melolin* type post operative fleece is a viscose/polyester blend, enabling a high rate of absorption. It also aims to keep the patient as comfortable as possible through good conformability to the wound site, and acts as a layer of soft padding to further protect the wound.

Wound Contact Layer

The wound contact layer is made from a perforated polyester film which allows exudate and fluid to pass freely into the pad, thus minimising pooling and reducing the risk of further skin damage. It is low adherent, allowing the dressing to be freely removed from the wound site and so reducing the risk of tissue damage and pain.




Post-Op Clinicals

This information is intended for Healthcare Professionals only.

Rubio P A. Physiology, immunology and clinical efficacy of an adherent polyurethane wound dressing: OpSite*. Burn Wound Coverings Vol II pages 253-254. Wise D L ed; CRC Press 53-78 (May 1984).

Rubio P A. Use of a semi-occlusive, transparent film dressing for surgical wound protection: Experience in 3, 637 cases. Int. Surg 76 (1991).

Osborne G and Kane J. F. A dressing for surgical wounds. Nursing Times, December 14 (1962).

Warltier A. W. New Approach to dressing raw surfaces. Nursing Times December 9 (1966).

Lowry A R and Farrar D F. Oxygen Permeability Measurements of Wound Dressings. Report Ref: SR/TW013/MS92-1. Study Ref: MS/5/229 (15/01/93).

Woods G. 'The ICI Polyurethanes Book', ICI Polyurethanes and Wiley J and Sons, Chichester, 181 (1990, 2nd Edition).

Kurring, P A. Evaluation of OpSite Post-op vs. Competitor Non-woven Dressings in the Management of Surgical Wounds healed by primary closure. Ref: IMM 94/007, issued 26/03/1996.

Bolton L L et al. Moisture and Healing: Beyond the Jargon. Ostomy/Wound Management January; 46 (Supp1 1A) 51S-62S.

Richardson M C. An in-vivo assessment of the microbial proliferation beneath transport film dressings. In: Maki DG, ed, International Congress and Symposium Series No 179, Improving Catheter Site Care. Royal Society of Medicine Series, London, New York, 1991 29-33.

Jester R et al. A one hospital study of the effect of wound dressings and other related factors on skin blistering following total hip and knee arthroplasty. Journal of Orthopaedic Nursing (2000) 4,71-77.

Hewlett L. The evaluation of two post-operative dressings in the management of surgical wounds. Poster presented by The Park Hospital, Nottingham, UK.

Post-Op FAQ

This information is intended for Healthcare Professionals only.




  • What sort of wounds should OpSite* Post-Op dressings be used to dress?
    Post-operative wounds, lacerations, cuts, abrasions, minor burns, wounds where levels of exudate are low/moderate.
  • Is OpSite Post-Op a waterproof dressing?
    Yes, OpSite Post-Op dressings are completely waterproof, and the patient can shower whilst wearing them.


  • Does the OpSite Post-Op dressing form a bacterial barrier?
    Yes, the top layer of the dressing is a transparent film which is totally impervious to bacteria, though highly permeable to oxygen. By preventing bacterial contamination, the risk of secondary infection is significantly reduced.
  • Is it conformable?
    Yes, OpSite Post-Op's soft film backing and flexible absorbent pad conform exactly to the skin's contours to aid patient comfort.


  • Is OpSite Post-Op absorbent?
    Yes, it has a highly absorbent pad which virtually eliminates strike-through where levels of exudate are low to medium.


  • How often does an OpSite Post-Op dressing need to be changed? On average, OpSite Post-Op stays in place at least twice as long as a non-woven dressing. The dressing should be changed if strike through or leaking of exudate occurs, or if the dressing lifts allowing access to bacteria and water. Time between dressing changes may be dependent upon your hospital protocol.


  • Will OpSite Post-Op adhere to the skin of even feverish patients, or patients in hot, humid environments?
    Yes, the film of OpSite Post-Op is moisture responsive, reacting to changing skin conditions to 'switch on' in the presence of moisture and allow any excess to transpire off. The moisture vapour transmission rate (MVTR) is a minimum of 3000g/m2/24hours at 37°C, so skin is kept dry which ensures that the dressing adheres securely, as well as helping to prevent bacterial colonisation which can flourish under moist conditions.



  • Is OpSite Post-Op easy to apply?
    Yes, it is applied in three easy stages: first, remove the backing papers. The patterned film carrier keeps the dressing stiff enough to prevent it from creasing or sticking to itself, but is thin enough to allow the dressing to conform during the second stage - smoothing the dressing onto the patient, aligning the pad with the wound. Third, peel off the patterned carrier and smooth the dressing into place.
  • Is there a risk of skin maceration?
    Due to the high MVTR (Moisture Vapour Transmission Rate) film, moisture on the skin's surface is transpired off, reducing the risk of skin maceration.
  • Can the dressing stand up to daily 'wear and tear'?
    Yes, due to the dressing's rounded corners and thin film the occurrence of lifting and 'snagging' is reduced.


  • Does removal of the dressing compromise wound integrity?
    No, wound integrity is not compromised upon dressing removal due to OpSite Post-Op's low adherent pad, thus minimising pain on removal.


  • Do all of these extra features and benefits make OpSite Post-Op expensive?
    No, good adhesive properties and high absorbency mean that the dressing stays in place at least twice as long as the average non-woven post-op dressing, and as a bacterial barrier with a highly permeable film which discourages bacterial colonisation, infection control is also addressed - leading to a highly cost effective wound management solution.