Closing the medullary canal after retrograde nail removal using a bioabsorbable bone plug: technical tip
- 830 Downloads
We describe a simple technique for closure of the intra-articular opening after the removal of a retrograde femur nail. With the use of a gelatine bioabsorbable bone plug the medullary canal is closed, reducing leakage of blood and cancellous bone particles from the bone into the knee joint.
KeywordsImplant removal Retrograde nail Hemarthrosis knee Bone plug
Retrograde intramedullary nailing is a frequently used technique in distal femoral fractures [3, 5]. Normally there is no need to remove this nail; however, should there be an indication for removal of the implant, an open connection between the medullary canal and the knee joint remains. Subsequently, most patients experience hemarthrosis of the knee joint to some extent. This hematoma, which likely contains small cancellous bone particles with pluripotent stem cells from the medullary canal, has an arthritis-like effect intra-articular in the knee joint [2, 6, 7].
Choosing the appropriate size of the plug can be achieved in two different ways: (1) using the diameter of the removed nail, (2) using the measuring probes of the (hemi-) arthroplasty set. One millimetre is usually subtracted from the measured size or from the nail diameter to facilitate an easier placement. The plug is placed approximately 2 cm into the canal and remains firmly in place by the absorption of water. We have thus far not encountered problems of a dislodging bioresorbable plug.
The gelatine plug is advantageous over the use of bone wax as plug, because bone wax does not dissolve over time and might dislodge into the joint. Secondly, bone wax has been frequently the cause of a reactive foreign-body granuloma or even allergic reactions .
In conclusion, upon removal of a retrograde intramedullary nail from the femur the open connection of the knee joint and medullary canal can be closed easily using a gelatine bone plug. This technique might also be applicable in other regions, for example after the removal of an antegrade femoral or tibial nail, to prevent hematoma in the surrounding soft-tissues.
This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.
- 2.Horisberger M, Kazemkhani S, Monument MJ, Emmenegger D, Hildebrand KA, Herzog W (2011) Does the source of hemarthrosis influence posttraumatic joint contracture and biomechanical properties of the joint? Clin Biomech (Bristol, Avon) 26(7):790–795Google Scholar
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 2.0 International License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.