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Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy 1/2011

01.01.2011 | Knee

Autologous platelet gel in total knee arthroplasty: a prospective randomized study

verfasst von: Wieger G. Horstmann, Robert Slappendel, Gijs G. van Hellemondt, Ate W. Wymenga, Nigel Jack, Peter A. M. Everts

Erschienen in: Knee Surgery, Sports Traumatology, Arthroscopy | Ausgabe 1/2011

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Abstract

Purpose

Total knee arthroplasty (TKA) is often associated with major postoperative blood loss, postoperative pain, and impaired wound healing. The application of autologous platelet gel (APG), prepared from the buffy coat of a unit of autologous blood, has been advocated to improve haemostasis after surgery, to decrease perioperative blood loss, diminish postoperative pain and to enhance the wound healing process. This randomized controlled pilot study was developed to assess the effects of APG after total knee arthroplasty on blood loss, wound healing, pain, range of motion, and hospital stay.

Method

A prospective, randomized observer blind controlled trial was performed. Forty patients with only osteoarthritis of the knee were scheduled to have a TKA, and they were randomized into two groups. Patients in the treatment group were all treated with the application of autologous platelet gel after the prosthesis was implanted. Patients in the control group were treated with the same protocol but no APG was used.

Results

Preoperative and postoperative Hb levels showed no significant difference and allogenic blood transfusions were not given in either group. Haematomas were significantly larger in the control group than in the platelet gel group (P = 0.03). The pain score at rest was higher in the control group on the 3rd day (P = 0.04). Wound healing disturbances were seen in four patients in the control group and in no patients in the APG group (n.s.). Range of motion of the knee was similar postoperatively. Hospital stay was 6.2 days in the APG and 7.5 days in the control group (n.s.).

Conclusion

In this prospective randomized pilot study on APG in total knee arthroplasty, differences in favour of the use of platelet gel were found, but these were subjective evaluations, marginal in effect, or did not reach statistical significance. The use of drains might have decreased the concentration of delivered platelets and may have diminished the effect. However, in this study, a statistically significant clinically important effect in favour of platelet gel application was not found. Further studies with larger numbers of patients, and without the use of drains, are warranted to investigate the possible benefits of autologous platelet gel in total knee arthroplasty.
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Metadaten
Titel
Autologous platelet gel in total knee arthroplasty: a prospective randomized study
verfasst von
Wieger G. Horstmann
Robert Slappendel
Gijs G. van Hellemondt
Ate W. Wymenga
Nigel Jack
Peter A. M. Everts
Publikationsdatum
01.01.2011
Verlag
Springer-Verlag
Erschienen in
Knee Surgery, Sports Traumatology, Arthroscopy / Ausgabe 1/2011
Print ISSN: 0942-2056
Elektronische ISSN: 1433-7347
DOI
https://doi.org/10.1007/s00167-010-1207-0

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