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@MISC{Seggewiss:842324,
      author       = {Seggewiss, Jana and Nicolini, Luis Fernando and Lichte,
                      Philipp and Greven, Johannes and Ribeiro, Marx and Prescher,
                      Andreas and Michalik, Roman and Herren, Christian and Kobbe,
                      Philipp and Hildebrand, Frank and Pishnamaz, Miguel},
      title        = {{T}ransosseous {S}uture versus {S}uture {A}nchor {F}ixation
                      for {I}nferior {P}ole {F}ractures of the {P}atella in
                      {O}steoporotic {B}one: {A} {B}iomechanical {S}tudy -
                      {D}ataset},
      reportid     = {RWTH-2022-02362},
      year         = {2022},
      abstract     = {Background: The surgical treatment of inferior patellar
                      pole fractures can be a challenge, especially in geriatric
                      patients, who are particularly frequently affected by
                      osteoporosis. The objective of this biomechanical study was
                      to compare the performance of suture anchor and transosseous
                      suture fixation in fractures of the inferior patellar pole
                      in context of bone mineral density.Methods: Twelve
                      fresh-frozen human cadaveric knees received a transverse
                      osteotomy, simulating an AO/OTA 34C1.3 inferior pole
                      fracture of the patella. These fractures were fixated with
                      either suture anchors (SA; Corkscrew® FT 4.5 mm) or
                      transosseous suture (TS; #2 FiberWire®). Cyclic loading
                      tests were performed by pulling the quadriceps tendon
                      against gravity from 90° flexion to almost full extension
                      (5°) for 1,000 cycles. Motion and fracture gap displacement
                      were tracked until failure occurred. Subsequently, loading
                      to failure tests followed. Differences between groups were
                      compared using unpaired t-tests, and correlations were
                      calculated with Pearson’s correlation coefficient.Results:
                      The suture anchor group showed significantly fewer cycles to
                      failure than the transosseous suture group (SA: 539.0±465.6
                      cycles, TS: 1,000±0 cycles, P=0.04). Bone mineral density
                      correlated positively with cycles to failure in the suture
                      anchor group (Pearson’s r=0.60, P=0.02). No differences in
                      fracture gap displacement could be proven after 100 cycles
                      (SA: 4.1±2.6 mm, TS: 6.5±2.6 mm, P=0.19); 500 cycles (SA:
                      6.4±6.1 mm, TS: 9.6±3.8 mm, P=0.39); and 1,000 cycles (SA:
                      4.0±0.4 mm, TS: 11.0±4.5 mm, P=0.08). Furthermore, the
                      mean destructive load to failure in the suture anchor group
                      was also significantly lower than in the transosseous suture
                      group (SA: 422.4±212.2 N, TS: 825.7±189.3 N, P=0.04).},
      cin          = {533500-3 ; 931510 / 511001-4 / 411110},
      cid          = {$I:(DE-82)533500-3_20140620$ / $I:(DE-82)511001-4_20140620$
                      / $I:(DE-82)411110_20140620$},
      typ          = {PUB:(DE-HGF)32},
      doi          = {10.18154/RWTH-2022-02362},
      url          = {https://publications.rwth-aachen.de/record/842324},
}