Quadriceps muscle compensatory activations are delayed following anterior cruciate ligament reconstruction using hamstring tendon graft.
Adult
Anterior Cruciate Ligament Injuries
/ complications
Anterior Cruciate Ligament Reconstruction
Case-Control Studies
Female
Hamstring Muscles
/ physiopathology
Hamstring Tendons
/ physiopathology
Humans
Knee Joint
/ physiopathology
Male
Quadriceps Muscle
/ physiopathology
Range of Motion, Articular
Young Adult
Journal
The Knee
ISSN: 1873-5800
Titre abrégé: Knee
Pays: Netherlands
ID NLM: 9430798
Informations de publication
Date de publication:
Mar 2020
Mar 2020
Historique:
received:
26
02
2019
revised:
12
08
2019
accepted:
18
09
2019
pubmed:
9
1
2020
medline:
4
11
2020
entrez:
9
1
2020
Statut:
ppublish
Résumé
Compensatory and anticipatory quadriceps activation (CQA and AQA) in response to postural perturbations are essential for functional stability of the knee. This study aimed at investigating CQA and AQA before and after anterior cruciate ligament reconstruction (ACLR) using hamstrings graft. Twelve participants with ACLR and 12 healthy controls were exposed to 10 either unpredictable or predictable perturbations of the knee before ACLR (T1), two months (T2) and six months (T3) after surgery. Latencies of CQA and AQA in vastus lateralis (VL), rectus femoris (RF) and vastus medialis (VM) were measured. Latency of CQA was delayed in ACLR compared to controls at T1 for VL (105 ± 25 vs. 57 ± 9 ms; P < .001), RF (102 ± 23 vs. 56 ± 9 ms; P < .001) and VM (107 ± 24 vs. 66 ± 16 ms; P < .001), at T2 for VL (68 ± 14 vs. 55 ± 10 ms; P < .01) and at T3 for VL (105 ± 22 vs. 58 ± 7 ms; P < .001), RF (102 ± 22 vs. 58 ± 12 ms; P < .001) and VM (106 ± 20 vs. 63 ± 8 ms; P < .001). AQA occurred earlier in ACLR than in controls at T1 for VL (-82 ± 64 vs. -14 ± 11 ms; P < .05) and VM (-105 ± 68 vs. -9 ± 12 ms; P < .05). CQA are delayed following ACLR with hamstring graft and should be addressd by post-surgical rehabilitation.
Sections du résumé
BACKGROUND
BACKGROUND
Compensatory and anticipatory quadriceps activation (CQA and AQA) in response to postural perturbations are essential for functional stability of the knee. This study aimed at investigating CQA and AQA before and after anterior cruciate ligament reconstruction (ACLR) using hamstrings graft.
METHODS
METHODS
Twelve participants with ACLR and 12 healthy controls were exposed to 10 either unpredictable or predictable perturbations of the knee before ACLR (T1), two months (T2) and six months (T3) after surgery. Latencies of CQA and AQA in vastus lateralis (VL), rectus femoris (RF) and vastus medialis (VM) were measured.
RESULTS
RESULTS
Latency of CQA was delayed in ACLR compared to controls at T1 for VL (105 ± 25 vs. 57 ± 9 ms; P < .001), RF (102 ± 23 vs. 56 ± 9 ms; P < .001) and VM (107 ± 24 vs. 66 ± 16 ms; P < .001), at T2 for VL (68 ± 14 vs. 55 ± 10 ms; P < .01) and at T3 for VL (105 ± 22 vs. 58 ± 7 ms; P < .001), RF (102 ± 22 vs. 58 ± 12 ms; P < .001) and VM (106 ± 20 vs. 63 ± 8 ms; P < .001). AQA occurred earlier in ACLR than in controls at T1 for VL (-82 ± 64 vs. -14 ± 11 ms; P < .05) and VM (-105 ± 68 vs. -9 ± 12 ms; P < .05).
CONCLUSION
CONCLUSIONS
CQA are delayed following ACLR with hamstring graft and should be addressd by post-surgical rehabilitation.
Identifiants
pubmed: 31911081
pii: S0968-0160(19)30220-0
doi: 10.1016/j.knee.2019.09.011
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
300-307Informations de copyright
Copyright © 2019 Elsevier B.V. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare no conflicts of interest. No funding was received for this study.