Background. Supraspinatus (SSP) tendon tear leads to intramuscular fat accumulation and the mechanisms are unknown. We investigated changes in SSP muscle vascularization and association with intramuscular fat following SSP tendon detachment with or without reattachment.
Methods. Sixty-six rabbits underwent SSP tendon detachment. In groups of ten, thirty rabbits were sacrificed 4, 8, and 12 weeks following detachment. In groups of twelve, the remaining thirty-six rabbits underwent SSP tendon reattachment 4, 8, and 12 weeks after detachment and were sacrificed 12 weeks later. Vascularization was quantified using CD31 immunohistochemistry and tested for correlation with intramuscular fat measurements.
Results. Four weeks after SSP tendon detachment, vascularization increased in the distal SSP muscle, reaching significance after 12 weeks of detachment (p = 0.024). Vascularization was correlated with intramuscular fat accumulation after detachment (r = 0.29; p = 0.008). No significant correlation was observed in the SSP tendon reattachment groups (r = 0.06; p = 0.65). Some vascular structures in the reattachment group had thicker vascular walls.
Conclusion. Increased vascularization in the distal SSP muscle was observed following tendon detachment but not after surgical reattachment. Both increased vascularization and intra-muscular fat accumulation co-localized to the distal end near the tendon tear site.
Vascular structures and relationship to intramuscular fat in supraspinatus muscle following tendon detachment and reattachment – an experimental study in rabbits
M. MacIntyre-Newell, H.K. Uhthoff, G. Trudel, O. Laneuville
Original Article, 95 - 104
Keywords: intramuscular fat, rotator cuff tear, vascular wall thickness, vascularization,
Table of Content: Vol.9 (No.1) 2019 January/March
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M.L.T.J. – Muscle, Ligaments and Tendons Journal: 2019 The way forward
N. MaffulliEditorial, 1 -
Short term evaluation of the hamstring graft diameter after ACL reconstruction
D. Costa Astur, D. Pires, T. Parente, P. Debieux, C. Cohen Kaleka, A. Skaf, M. CohenOriginal Article, 3 - 7 -
The efficacy of bi-component carboxymethylcellulose-polysaccharide B as a hemostatic and anti-adherent agent at the tibial insertion of the hamstring tendons after reconstruction of the anterior cruciate ligament
D. Costa Astur, F. Caracatto Baras, R. Moukbel Chaim, J. J. Krob, G. Gonçalves Arliani, G. Taniguti de Oliveira, M. CohenOriginal Article, 8 -13 -
Multi-ligament injures of the knee: does the age matter? A long-term retrospective study
N. Zimmermann, L.B. Moser, M.T. HirschmannOriginal Article, 14 -20 -
The use of robotics devices in knee rehabilitation: a critical review
R. Wilmart, E. Garone, B. InnocentiOriginal Article, 21 - 48 -
Iliotibial band syndrome: can the lateral femoral epicondyle play a role? An anatomic study of individual variation in epicondyle prominence
J.S. Everhart, A. Di Bartola, A.M.W. Chaudhari, D.C. FlaniganOriginal Article, 49 - 54 -
Anterior cruciate ligament deficiency: rotational instability in the transverse plane. A preliminary laboratory in vivo study
A. Ferrer, R. Twycross-Lewis, N. MaffulliOriginal Article, 55 -61 -
Gait disturbances in football, rugby players and skiers following anterior cruciate ligament reconstruction
M.C. Zielinski, R. Twycross Lewis, R. Woledge, N. MaffulliOriginal Article, 62 - 69 -
ACL biomechanical risk factors on single-leg drop-jump: a cohort study comparing football players with and without history of lower limb injury
S. Daoukas, N. Malliaropoulos, N. MaffulliOriginal Article, 70 - 75 -
Posterior meniscal root repair: a biomechanical comparison between human and porcine menisci
L. Camarda, E. Bologna, D. Pavan, F. Morello, F. Monachino, F. Giacco, M. ZingalesOriginal Article, 76 - 81 -
Return to play after anterior cruciate ligament reconstruction: trans-tibial versus antero-medial technique
A. Tucciarone, L. Godente, F. Netti, F. Martinelli, R. Fabbrini,L. Del Ferraro, R. D’OnofrioOriginal Article, 82 - 89 -
Ultrasonography changes at quadriceps tendon donor site in anterior cruciate ligament reconstruction. Is it consistent with regeneration?
D. Nalla, S. Kumar Nema, D. Barathi, G. BalajiOriginal Article, 89 - 94 -
Vascular structures and relationship to intramuscular fat in supraspinatus muscle following tendon detachment and reattachment – an experimental study in rabbits
M. MacIntyre-Newell, H.K. Uhthoff, G. Trudel, O. LaneuvilleOriginal Article, 95 - 104 -
Complete rupture of the flexor hallucis longus tendon in an isolated closed injury. A systematic literature and qualitative analysis
D.L. Kerr, S. Butler, K. Thompson, A. HiggsOriginal Article, 105 - 111 -
Platelet-rich plasma in hamstring muscle injuries in professional soccer players. A pilot study
E. Bezuglov, N. Maffulli, A. Tokareva, E. AchkasovOriginal Article, 112 - 118 -
Morphological variants of nerve to gastrocnemius muscle, an anatomical guide to perform surgical dissection
V. Prathapamchandra, L. V. Prabhu, M. M. Pai, B.V. Murlimanju, R. VadgaonkarOriginal Article, 119 - 123 -
Usefulness of point shear wave elastography to assess the effects of extracorporeal shockwaves on spastic muscles in children with cerebral palsy: an uncontrolled experimental study
B. Corrado, M. Albano, M.G. Caprio, C. Di Luise, M. Sansone, V. Servodidio, S. Russo, G. Vallone, E.A. Vola, C. Servodio IammarroneOriginal Article, 124 - 130 -
A morphometric study of the popliteus myotendinous complex with its clinical aspects
P. C. Vani, V. RaveendranathOriginal Article, 131 - 137 -
Efficacy of triamcinolone injection with or without oral meloxicam for treatment of anserine syndrome: a randomized, double-blind, placebo controlled trial
S. Thiengwittayaporn, S. Phatwong, N. Kangkano, N. CharoenphandhuOriginal Article, 138 - 144 -
Correlation of Handgrip Strength to Postoperative Outcomes in Rotator Cuff Repair: A Preliminary Report
Y. Karanjkar, A. Prabhu, K. VishalOriginal Article, 145 - 149 -
Combined anatomic reconstruction of the anterior cruciate and anterolateral ligaments
N. Maffulli, F. Oliva, A. OlivieroOriginal Article, 150-155