TY - JOUR
T1 - Graft maturity of the reconstructed anterior cruciate ligament 6 months postoperatively
T2 - a magnetic resonance imaging evaluation of quadriceps tendon with bone block and hamstring tendon autografts
AU - Ma, Yong
AU - Murawski, Christopher D.
AU - Rahnemai-Azar, Amir Ata
AU - Maldjian, Catherine
AU - Lynch, Andrew D.
AU - Fu, Freddie H.
N1 - Publisher Copyright:
© 2014, European Society of Sports Traumatology, Knee Surgery, Arthroscopy (ESSKA).
PY - 2015/3
Y1 - 2015/3
N2 - Purpose: The purpose of this study was to report the potential differences associated with graft maturity measured on magnetic resonance imaging (MRI) between quadriceps tendon with bone block and hamstring tendon autografts 6 months after ACL reconstruction. Methods: Twenty-six patients (15 male, 11 female; mean age 29.4 ± 17 years, range 13–46 years) who had undergone anatomic SB ACL reconstruction with either hamstring or quadriceps tendon with bone block autografts and had postoperative MRI 6 months after surgery. In 12 cases, the quadriceps tendon with bone block was used and hamstring in 14 cases. The signal/noise quotient was calculated to compare the difference between quadriceps tendon with bone block and hamstring autografts. Results: Mean signal/noise quotient is lesser in quadriceps tendon with bone block (1.74 ± 0.39) compared with HS (2.44 ± 0.61) autografts (p = 0.020). For hamstring autograft, the distal region showed a significantly lower mean signal/noise quotient value compared with middle region, and the mean signal/noise quotient value in proximal region was the highest (distal vs middle p < 0.001; middle vs proximal p = 0.007; proximal vs distal p < 0.001). The mean signal/noise quotient of proximal region in quadriceps tendon with bone block autograft was lesser than that in hamstring. The middle region of the quadriceps tendon with bone block graft demonstrated the greatest signal/noise quotient [distal vs middle p = 0.001; middle vs proximal p = 0.027; proximal vs distal (n.s.)]. Conclusion: The maturity of quadriceps tendon with bone block was better in comparison with hamstring 6 months after anatomic SB ACL reconstruction. This study is clinically relevant in that modifying the individual rehabilitation according to the extent of graft maturity may be necessary to optimize patient function and prevent re-injury of the ACL graft. Level of evidence: Retrospective case series, Level IV.
AB - Purpose: The purpose of this study was to report the potential differences associated with graft maturity measured on magnetic resonance imaging (MRI) between quadriceps tendon with bone block and hamstring tendon autografts 6 months after ACL reconstruction. Methods: Twenty-six patients (15 male, 11 female; mean age 29.4 ± 17 years, range 13–46 years) who had undergone anatomic SB ACL reconstruction with either hamstring or quadriceps tendon with bone block autografts and had postoperative MRI 6 months after surgery. In 12 cases, the quadriceps tendon with bone block was used and hamstring in 14 cases. The signal/noise quotient was calculated to compare the difference between quadriceps tendon with bone block and hamstring autografts. Results: Mean signal/noise quotient is lesser in quadriceps tendon with bone block (1.74 ± 0.39) compared with HS (2.44 ± 0.61) autografts (p = 0.020). For hamstring autograft, the distal region showed a significantly lower mean signal/noise quotient value compared with middle region, and the mean signal/noise quotient value in proximal region was the highest (distal vs middle p < 0.001; middle vs proximal p = 0.007; proximal vs distal p < 0.001). The mean signal/noise quotient of proximal region in quadriceps tendon with bone block autograft was lesser than that in hamstring. The middle region of the quadriceps tendon with bone block graft demonstrated the greatest signal/noise quotient [distal vs middle p = 0.001; middle vs proximal p = 0.027; proximal vs distal (n.s.)]. Conclusion: The maturity of quadriceps tendon with bone block was better in comparison with hamstring 6 months after anatomic SB ACL reconstruction. This study is clinically relevant in that modifying the individual rehabilitation according to the extent of graft maturity may be necessary to optimize patient function and prevent re-injury of the ACL graft. Level of evidence: Retrospective case series, Level IV.
KW - ACL
KW - Anatomic
KW - Autograft
KW - MRI
KW - Postoperative
KW - Signal intensity
UR - http://www.scopus.com/inward/record.url?scp=84923819747&partnerID=8YFLogxK
U2 - 10.1007/s00167-014-3302-0
DO - 10.1007/s00167-014-3302-0
M3 - Article
C2 - 25223969
AN - SCOPUS:84923819747
SN - 0942-2056
VL - 23
SP - 661
EP - 668
JO - Knee Surgery, Sports Traumatology, Arthroscopy
JF - Knee Surgery, Sports Traumatology, Arthroscopy
IS - 3
ER -