Detaillierte Beitrags-Information
| Beitragstitel | Inter-Epicondylar Distance and Radial Head Diameter as indirect Markers for Length Adjustment in distal Biceps Tendon Allo-/Autograft Reconstruction |
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| Beitragscode | P007 |
| Autoren | |
| Präsentationsform | Poster |
| Themengebiete |
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| Abstract |
INTRODUCTION: Early musculotendinous retraction, shortening and fibrosis after distal biceps tendon tears makes a primary reconstruction often difficult or even impossible. Interposition by an allograft seems to be a good solution, however there is no consensus how to adjust the correct tendon length intraoperatively. The aim of this study was to find a reference value for intraoperative tendon length adjustment. METHODS: Three-dimensional surface models of healthy distal biceps tendons were created based on 85 MRI scans. The tendon length was measured as the external tendon part from the point of muscle fibre termination to the insertion on the bicipital tuberosity. Inter-epicondylar distance (IED) and radial head diameter (RHD) was calculated on antero-posterior radiographs. Correlations were done between the calculated tendon length and IED, RHD and patient’s height (PH). RESULTS: Mean length of the external part of the distal biceps tendon was 69mm (female 64mm, male 71mm). The tendon length was on average 1.1 times of the IED, 3 times of the RHD and 0.4 times of PH (in cm). Herewith, the tendon length could be predicted within +/-0.5cm/1cm deviation in 49%/84% by IED, 55%/82% by RHD, 47%/80 by PH and 45%/82% by mean tendon length. Intra- and inter-reader reliabililty of IED and RHD was eccellent (R2=0.938-0.981). CONCLUSIONS: The distal biceps tendon length can be predicted within 1cm with an accuracy of up to 84% by IED with an excellent intra- and inter-reader reliability. IED could be a helpful reference value for intraoperative tendon length adjustment in distal biceps allograft surgery. |