BACKGROUND: Bankart repair with multiple anchor holes concentrated in the anterior-inferior glenoid may contribute to glenoid weakening and potentially may induce glenoid failure. PURPOSE: To compare the biomechanical strength of a Bankart repair construct that used 3 single-loaded suture anchors versus a repair construct that used 2 double-loaded suture anchors. STUDY DESIGN: Comparative laboratory study. METHODS: A standard Bankart lesion was created in 18 human cadaveric shoulders (9 matched pairs). Within each matched pair, 1 repair construct used 3 single-loaded anchors, whereas the other used 2 double-loaded suture anchors. Measured outcomes (load, stiffness, and energy absorbed) were recorded at failure and at 2 mm of labral displacement. Constructs were loaded to failure with a materials testing device that had differential variable reluctance transducers for displacement measurements. RESULTS: The double-loaded anchor construct had a significantly higher ultimate tensile load (944 ± 231 vs 784 ± 287 N; P = .03). For the other measures (load at 2 mm of displacement, energy absorbed at failure and at 2 mm of displacement and stiffness), there were no significant differences between tested constructs. CONCLUSION: A Bankart repair construct that used 2 double-loaded anchors was either superior to or equal to a repair construct that used 3 single-loaded anchors in all measured outcomes. CLINICAL RELEVANCE: Using 2 double-loaded suture anchors for a Bankart repair may limit anchor holes in the glenoid and reduce the risk of postsurgical glenoid fracture while providing a stable repair construct.
BACKGROUND: Bankart repair with multiple anchor holes concentrated in the anterior-inferior glenoid may contribute to glenoid weakening and potentially may induce glenoid failure. PURPOSE: To compare the biomechanical strength of a Bankart repair construct that used 3 single-loaded suture anchors versus a repair construct that used 2 double-loaded suture anchors. STUDY DESIGN: Comparative laboratory study. METHODS: A standard Bankart lesion was created in 18 human cadaveric shoulders (9 matched pairs). Within each matched pair, 1 repair construct used 3 single-loaded anchors, whereas the other used 2 double-loaded suture anchors. Measured outcomes (load, stiffness, and energy absorbed) were recorded at failure and at 2 mm of labral displacement. Constructs were loaded to failure with a materials testing device that had differential variable reluctance transducers for displacement measurements. RESULTS: The double-loaded anchor construct had a significantly higher ultimate tensile load (944 ± 231 vs 784 ± 287 N; P = .03). For the other measures (load at 2 mm of displacement, energy absorbed at failure and at 2 mm of displacement and stiffness), there were no significant differences between tested constructs. CONCLUSION: A Bankart repair construct that used 2 double-loaded anchors was either superior to or equal to a repair construct that used 3 single-loaded anchors in all measured outcomes. CLINICAL RELEVANCE: Using 2 double-loaded suture anchors for a Bankart repair may limit anchor holes in the glenoid and reduce the risk of postsurgical glenoid fracture while providing a stable repair construct.
Authors: Frank Martetschläger; Max P Michalski; Kyle S Jansson; Coen A Wijdicks; Peter J Millett Journal: Knee Surg Sports Traumatol Arthrosc Date: 2013-07-05 Impact factor: 4.342
Authors: Timothy S Johnson; Christine M DiPompeo; Zahra C Ismaeli; Polly A Porter; Shannon L Nicholson; David C Johnson Journal: Arthrosc Tech Date: 2014-06-02
Authors: M Petri; A Dratzidis; S Brand; T Calliess; C Hurschler; C Krettek; M Jagodzinski; M Ettinger Journal: Knee Surg Sports Traumatol Arthrosc Date: 2014-01-29 Impact factor: 4.342
Authors: Glaydson Gomes Godinho; José Márcio Alves Freitas; Flávio de Oliveira França; Flávio Márcio de Lago E Santos; Alan Arruda Aragão; Marcos Knoll Barros Journal: Rev Bras Ortop Date: 2014-12-31
Authors: Peter N Chalmers; Bradley Hillyard; Jun Kawakami; Garrett Christensen; Dillon O'Neill; Victoria Childress; Robert Z Tashjian Journal: JSES Int Date: 2020-05-30