Felipe Machado1, Pedro Debieux2, Camila Cohen Kaleka3, Diego Astur4, Maria Stella Peccin5, Moisés Cohen6. 1. a Orthopedics Department , Universidade Federal São Paulo (Unifesp) , São Paulo , Brazil. 2. b Knee surgery and arthroscopy group , Universidade Federal de São Paulo (Unifesp), Hospital Israelita Albert Einstein, Beneficência Portuguesa , São Paulo , Brazil. 3. c Instituto Cohen , Beneficência Portuguesa , São Paulo , Brazil. 4. d Knee surgery and arthroscopy group , Universidade Federal de São Paulo (Unifesp), Beneficência Portuguesa , São Paulo , Brazil. 5. e Health Sciences Department , Universidade Federal São Paulo (Unifesp) , São Paulo , Brazil. 6. f Orthopedic Department , Universidade Federal de São Paulo (Unifesp) , São Paulo , Brazil.
Abstract
OBJECTIVE: To compare knee isokinetic performance six months after reconstruction of the anterior cruciate ligament using grafts from either the patellar tendon or the hamstrings among patients who underwent the same rehabilitation protocol. METHODS: Thirty-four patients were evaluated (17 with grafts from the patellar tendon and 17 with grafts from the hamstrings). Operated and non-operated knees were compared with regards to the variables of peak torque, work and the hamstring/quadriceps relationship at velocities of 60º/s and 180º/s and power of 180º/s after six months of surgery. RESULTS: The patients with ACL reconstruction using the patellar tendon (BPTB) showed quadriceps deficits for all variables, but the flexor musculature was balanced. In the hamstring group, both the extensors and the flexors showed deficits for the variables analyzed, except for hamstring power at 180º/s. CONCLUSION: Patients in the patellar tendon group had a greater quadriceps deficit compared with those in the hamstrings group. Patients in the hamstrings group had a greater muscular deficit in the flexor mechanism compared with the contralateral knee. An unbalanced H/Q ratio was observed regardless of graft type, but this was more evident in the BPTB group.
OBJECTIVE: To compare knee isokinetic performance six months after reconstruction of the anterior cruciate ligament using grafts from either the patellar tendon or the hamstrings among patients who underwent the same rehabilitation protocol. METHODS: Thirty-four patients were evaluated (17 with grafts from the patellar tendon and 17 with grafts from the hamstrings). Operated and non-operated knees were compared with regards to the variables of peak torque, work and the hamstring/quadriceps relationship at velocities of 60º/s and 180º/s and power of 180º/s after six months of surgery. RESULTS: The patients with ACL reconstruction using the patellar tendon (BPTB) showed quadriceps deficits for all variables, but the flexor musculature was balanced. In the hamstring group, both the extensors and the flexors showed deficits for the variables analyzed, except for hamstring power at 180º/s. CONCLUSION:Patients in the patellar tendon group had a greater quadriceps deficit compared with those in the hamstrings group. Patients in the hamstrings group had a greater muscular deficit in the flexor mechanism compared with the contralateral knee. An unbalanced H/Q ratio was observed regardless of graft type, but this was more evident in the BPTB group.
Authors: Amy O Parkinson; Charlotte L Apps; John G Morris; Cleveland T Barnett; Martin G C Lewis Journal: J Sports Sci Med Date: 2021-10-01 Impact factor: 2.988