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- W4387053024 abstract "The bone-patellar tendon-bone autograft (BTB) is considered the “gold standard” graft harvest selection for anterior cruciate ligament reconstructions (ACLR). BTB autografts have been associated with anterior knee pain, risk of patellar fracture and donor site morbidity. Quadriceps tendon autografts (QT) have had an increase in popularity due to advantages related to larger anatomical graft harvest site and a reduced risk of anterior knee pain. Quadriceps strength objective variables including limb symmetry index (LSI = surgical limb/nonsurgical limb*100%) and relative torque to body weight (QRel = average peak torque / bodyweight*100%) are common methods to observe strength progression and help guide exercise selection during rehabilitation. PURPOSE: The purpose of this study was to compare the progression of isometric quadriceps strength following BTB and QT autografts across an ACLR rehabilitation protocol. METHODS: 27 individuals having undergone ACLR with QT were age, sex and BMI matched with individuals who underwent ACLR with BTB (18 + 4 yrs). Isometric quadriceps strength testing was administered at 3, 6, and 9 months post-surgery on an isokinetic dynamometer at 90 degrees of knee flexion. Patients maximally kicked out for five seconds and repeated three times with 30 seconds of rest between repetitions. The differences in QRel (%) and LSI (%) between BTB and QT autografts were analyzed using independent samples t tests, with p < .05 used to determine significance assuming unequal variance. RESULTS: BTB were found to have significantly higher LSI (p < 0.01) and QRel (p = 0.01) compared to QT autografts at 3 months post-surgery. During the later stages of recovery, LSI and QRel was not found to be significant with only a 9% difference in QRel at 9 months. CONCLUSION: QRel and LSI were significantly higher in BTB at 3 months post-surgery compared to QT. No significant differences in QRel or LSI were found between grafts at 6 and 9 months post-surgery. Graft harvest selection should be a consideration when developing rehabilitation programs especially during early post-operative care. Despite not being statistically significant, a 9% difference in QRel at 9 months may be considered clinically meaningful. Further studies are needed to address the cause of this delayed return of quadriceps strength in QT autographs." @default.
- W4387053024 created "2023-09-27" @default.
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- W4387053024 date "2023-09-01" @default.
- W4387053024 modified "2023-09-27" @default.
- W4387053024 title "Isometric Quadriceps Strength Progression Following Acl Reconstruction: Quadriceps Tendon Vs. Bone Patellar Tendon Bone Autografts" @default.
- W4387053024 doi "https://doi.org/10.1249/01.mss.0000988692.41181.f7" @default.
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