Prevention of heterotopic ossification: an experimental study using a plasma expander in a murine model

Heterotopic ossification (HO) is a frequent complication following orthopedic and trauma surgery. It often leads to substantial morbidity as many affected patients suffer from pain and joint contractures. Current prophylactic measures include nonsteroidal anti-inflammatory drugs (NSAID) and local ra...

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Veröffentlicht in:BMC surgery 2016-05, Vol.16 (1), p.29-29, Article 29
Hauptverfasser: Zimmermann, Stefan M, Schwitter, Lukas W, Scheyerer, Max J, Jentzsch, Thorsten, Simmen, Hans-Peter, Werner, Clément M L
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container_end_page 29
container_issue 1
container_start_page 29
container_title BMC surgery
container_volume 16
creator Zimmermann, Stefan M
Schwitter, Lukas W
Scheyerer, Max J
Jentzsch, Thorsten
Simmen, Hans-Peter
Werner, Clément M L
description Heterotopic ossification (HO) is a frequent complication following orthopedic and trauma surgery. It often leads to substantial morbidity as many affected patients suffer from pain and joint contractures. Current prophylactic measures include nonsteroidal anti-inflammatory drugs (NSAID) and local radiation. However, several disadvantages such as delayed fracture healing and impaired ossification have been reported. For this reason, a novel approach for prevention of HO was searched for. We hypothesized that systemic administration of hydroxyethyl starch (HES), a substance known to influence microcirculation, would reduce formation of HO in a murine model. A pre-established murine model was used where HO has been shown to develop following Achilles tendon tenotomy. Twenty CD1 mice were randomly assigned to a control (n = 10) or treatment group (n = 10). The treatment group received two intravenous HES injections perioperatively, while the control group underwent tenotomy only. After ten weeks, the mice were euthanized and micro CT scans of the hind limbs were performed. HO was manually identified and quantitatively assessed. A Wilcoxon rank sum test was used for comparison of both groups. The mean heterotopic bone volume in the control group was significantly larger compared to the HES group (2.276 mm(3) vs. 0.271 mm(3), p = 0.005). A reduction of mean ectopic bone volume of 88 % was found following administration of HES. A substantial reduction of HO formation was found following perioperative short-term administration of HES. This work represents a preliminary study, necessitating further studies before drawing ultimate conclusions. However, this simple addition to current prophylactic measures might lead to a more effective prevention of HO in the future.
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subjects Achilles Tendon - surgery
Animals
Complications and side effects
Disease Models, Animal
Dislocations
Hydroxyethyl Starch Derivatives - therapeutic use
Male
Mice
Ossification
Ossification, Heterotopic - etiology
Ossification, Heterotopic - prevention & control
Plasma Substitutes - therapeutic use
Prevention
Random Allocation
Risk factors
Tenotomy - adverse effects
Tomography, X-Ray Computed
title Prevention of heterotopic ossification: an experimental study using a plasma expander in a murine model
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