@article{eby_bleedorn_2020, title={A computed tomographic graphical approach to guide correction of femoral torsion}, volume={49}, ISSN={["1532-950X"]}, DOI={10.1111/vsu.13438}, abstractNote={OBJECTIVE
To report geometric methods to assess femoral transverse bone morphology and develop a virtual method to guide the surgical correction of femoral torsional deformities.


STUDY DESIGN
Observational study.


SAMPLE POPULATION
Sixteen client-owned dogs comprising 14 normal femurs and 14 femurs with angulation-rotation bone deformities.


METHODS
Femoral torsion angle was measured with computed tomographic (CT) three-dimensional (3D) multiplanar reconstruction. Distal femoral transverse morphology was estimated with geometric methods and compared to direct measurements to span a target 20° angle on 3D reconstructions. A virtual correction of 20° was performed, and 3D-printed bone models were created. Femoral torsion of corrected bone models was compared to precorrection.


RESULTS
Geometric estimates with an arc and chord of the metaphyseal area and chord of a best fit circle did not differ from direct measurement of femoral cortical length along the cranial cortex. Femoral torsion differed between normal femurs (25.8° ± 6°) and those with deformity (36.9° ± 8.4°, P < .001). Torsion that was measured on corrected 3D bone models did not differ from the expected torsion (preoperative +20°).


CONCLUSION
Geometric methods provided an accurate estimate of distal femoral transverse bone morphology. Rotation of the distal femur based on geometric methods resulted in an accurate correction of torsion.


CLINICAL SIGNIFICANCE
Femoral bone diameter can be measured on a CT cross-section, and rotation distance can be calculated to achieve a desired correction of torsion. This approach provides a simple and accurate method to guide the correction of femoral torsion.}, number={5}, journal={VETERINARY SURGERY}, author={Eby, Adam and Bleedorn, Jason}, year={2020}, month={Jul}, pages={1015–1023} }
 @article{eby_duffy_chang_gaffney_fisher_moore_2020, title={Influence of barbed epitendinous suture combined with a core locking-loop sutures to repair experimental flexor tendon lacerations}, volume={49}, ISSN={["1532-950X"]}, DOI={10.1111/vsu.13496}, abstractNote={OBJECTIVE
To determine the influence of barbed epitendinous sutures (ES) on the biomechanical properties and gap formation of repaired canine tendons.


STUDY DESIGN
Ex vivo, experimental study.


SAMPLE POPULATION
Eighty (n = 16/group) canine superficial digital flexor tendons (SDFT).


METHODS
After transection, SDFT were repaired with a locking-loop (LL) pattern alone (group 1), an LL + smooth ES with monofilament suture (group 2), an LL + V-loc-ES (group 3), an LL + Quill-ES (group 4), or an LL + Stratafix-ES (group 5). All core LL repairs were performed with 0 USP polypropylene, and all ES were placed with 2-0 USP equivalent. Constructs were preloaded and tested to failure. Yield, peak, and failure loads; occurrence of gap formation; and failure modes were compared.


RESULTS
Yield loads were greater for groups 2 and 5 (P < .0001). Peak and failure loads were greater when an ES was used (P < .005), especially for groups 2 and 5 (P < .0001). Groups with an ES required higher loads to generate 1- and 3-mm gaps compared with specimens without an ES (P < .002). Force to create 1- and 3-mm gaps was greater for group 5 (P < .0001) and groups 2 and 5 (P < .0001), respectively. Failure mechanism did not differ (P = .092) between ES groups, consisting of suture breakage in 51 of 64 constructs compared with pull-through in seven of 16 group 1 constructs.


CONCLUSION
Epitendinous suture placement improved the biomechanical properties of repaired tendons. Stratafix barbed suture performed better as an ES compared with other barbed sutures and similarly to monofilament suture.


CLINICAL SIGNIFICANCE
Stratafix barbed suture eliminates the requirement for knot tying and seems to be equivalent to smooth monofilament suture when used as an ES in this pattern.}, number={8}, journal={VETERINARY SURGERY}, author={Eby, Adam C. and Duffy, Daniel J. and Chang, Yi-Jen and Gaffney, Lewis and Fisher, Matthew B. and Moore, George E.}, year={2020}, month={Dec}, pages={1590–1599} }