Arthroscopy: The Journal of Arthroscopic & Related Surgery
Original articleA biomechanical comparison of three lower extremity tendons for ligamentous reconstruction about the knee☆
Section snippets
Methods
Sixteen fresh-frozen cadaveric lower limbs were obtained from the University Anatomical Gifts Program. The average age of the tested specimens was 78.3 years (range, 66–89 years). Specimens were frozen at −20°C and thawed at room temperature the day of harvest. All specimens had the TA, TP, and PL tendons harvested from the musculotendinous junction to its insertion. All specimens were inspected for tendonitis, and any tendon that showed evidence of such was discarded. Each tendon was labeled
Results
For purposes of the study, tendons tested were placed into 1 of 3 groups: group 1: TA; group 2: TP; and group 3: PL. The average lengths of the TA, TP, and PL tendons were 37 cm (SE, ± 4.0), 33 cm (SE, ± 4.3), and 42 cm (SE, ± 3.4), respectively. The average cross-sectional areas of the doubled TA, doubled TP, and doubled PL tendons were 38 mm2, 48 mm2, and 37 mm2, respectively. No statistical difference was seen among the groups (P < .23) (Fig 2). No significant difference was seen in the
Discussion
Over the past 15 years, the patellar ligament has been frequently used as a graft source for reconstruction of the ACL. The popularity of this graft stems primarily from its high initial strength, potential for bone-to-bone healing, and the predictable success in achieving knee stability.4, 5, 9, 10, 11, 26 However, the morbidity associated with the use of the patellar ligament has been well described. Problems encountered have included donor site morbidity, patellofemoral pain, quadriceps
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This Research was supported in part by Research Technology, Incorporated, Alachua, Florida.