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TY  - CHART
AU  - Seggewiss, Jana
AU  - Nicolini, Luis Fernando
AU  - Lichte, Philipp
AU  - Greven, Johannes
AU  - Ribeiro, Marx
AU  - Prescher, Andreas
AU  - Michalik, Roman
AU  - Herren, Christian
AU  - Kobbe, Philipp
AU  - Hildebrand, Frank
AU  - Pishnamaz, Miguel
TI  - Transosseous Suture versus Suture Anchor Fixation for Inferior Pole Fractures of the Patella in Osteoporotic Bone: A Biomechanical Study - Dataset
M1  - RWTH-2022-02362
PY  - 2022
AB  - 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).
LB  - PUB:(DE-HGF)32
DO  - DOI:10.18154/RWTH-2022-02362
UR  - https://publications.rwth-aachen.de/record/842324
ER  -