Collagen changes and realignment induced by low‐level laser therapy and low‐intensity ultrasound in the calcaneal tendon

The treatment of calcaneal tendon injuries requires long‐term rehabilitation. Ultrasound (US) and low‐level laser therapy (LLLT) are the most used and studied physical agents in the treatment of tendon injuries; however, only a few studies examined the effects of the combination of US and LLLT. Therefore, the purpose of this study was to investigate which treatment (the exclusive or combined use of US and LLLT) most effectively contribute to tendon healing.

[1]  C. Pinfildi,et al.  Effect of low-level laser therapy on mast cells in viability of the transverse rectus abdominis musculocutaneous flap. , 2009, Photomedicine and laser surgery.

[2]  J. González‐Gallego,et al.  Low‐level laser therapy (LLLT) prevents oxidative stress and reduces fibrosis in rat traumatized Achilles tendon , 2005, Lasers in surgery and medicine.

[3]  S. Pacheco,et al.  Comparison between the effect of low-level laser therapy and low-intensity pulsed ultrasonic irradiation in vitro. , 2008 .

[4]  R Lubart,et al.  A possible explanation of laser-induced stimulation and damage of cell cultures. , 1991, Journal of photochemistry and photobiology. B, Biology.

[5]  A. Renno,et al.  Comparative study using 685-nm and 830-nm lasers in the tissue repair of tenotomized tendons in the mouse. , 2006, Photomedicine and laser surgery.

[6]  A. Schindl,et al.  Low-intensity laser therapy: a review. , 2000, Journal of investigative medicine : the official publication of the American Federation for Clinical Research.

[7]  C. Pinfildi,et al.  Helium–neon laser in viability of random skin flap in rats , 2005, Lasers in surgery and medicine.

[8]  A. Renno,et al.  Low-level laser therapy (670 nm) on viability of random skin flap in rats , 2009, Lasers in Medical Science.

[9]  G. Ng,et al.  Effects of a therapeutic laser on the ultrastructural morphology of repairing medial collateral ligament in a rat model , 2003, Lasers in surgery and medicine.

[10]  M. Dyson,et al.  The stimulation of tissue regeneration by means of ultrasound. , 1968, Clinical science.

[11]  B. Benze,et al.  Effect of In-Ga-Al-P diode laser irradiation on angiogenesis in partial ruptures of Achilles tendon in rats. , 2005, Photomedicine and laser surgery.

[12]  J. M. Granjeiro,et al.  Avaliação da biocompatibilidade de uma membrana de pericárdio bovino acelular e seu potencial como carreador de osteoblastos , 2010 .

[13]  N. Parizotto,et al.  Influence of different low-intensity laser therapy wavelengths for rat tendon regeneration following tenotomy , 2007 .

[14]  M. Leung,et al.  Therapeutic low energy laser improves the mechanical strength of repairing medial collateral ligament , 2002, Lasers in surgery and medicine.

[15]  D. Mass,et al.  Direct-current electrical stimulation of tendon healing in vitro. , 1987, Clinical orthopaedics and related research.

[16]  C. Greenough.  The Effect of Pulsed Electromagnetic Fields on Flexor Tendon Healing In the Rabbit , 1996, Journal of hand surgery.

[17]  J. Basford,et al.  Low‐energy laser therapy: Controversies and new research findings , 1989, Lasers in surgery and medicine.

[18]  B de C Vidal,et al.  The effect of therapeutic ultrasound on repair of the achilles tendon (tendo calcaneus) of the rat. , 2001, Ultrasound in medicine & biology.

[19]  T. Zantop,et al.  Quantitative assessment of blood vessels of the human Achilles tendon: an immunohistochemical cadaver study , 2003, Archives of Orthopaedic and Trauma Surgery.

[20]  J. Risteli,et al.  Increased content of type III collagen at the rupture site of human Achilles tendon , 2002, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[21]  C. Yeung,et al.  Pulsed ultrasound treatment accelerates the repair of Achilles tendon rupture in rats , 2006, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[22]  G. Ng,et al.  The effect of therapeutic ultrasound intensity on the ultrastructural morphology of tendon repair. , 2007, Ultrasound in medicine & biology.

[23]  G. Riley.  Tendinopathy—from basic science to treatment , 2008, Nature Clinical Practice Rheumatology.

[24]  Tiina I. Karu,et al.  The science of low-power laser therapy , 1998 .

[25]  N. Maffulli,et al.  Tenocytes from Ruptured and Tendinopathic Achilles Tendons Produce Greater Quantities of Type III Collagen than Tenocytes from Normal Achilles Tendons: An in Vitro Model of Human Tendon Healing , 2000, The American journal of sports medicine.

[26]  C. Taciro,et al.  Influência de diferentes comprimentos de onda da laserterapia de baixa intensidade na regeneração tendínea do rato após tenotomia , 2007 .

[27]  N. Parizotto,et al.  Comparative study of the efficacy of the topical application of hydrocortisone, therapeutic ultrasound and phonophoresis on the tissue repair process in rat tendons. , 2005, Ultrasound in medicine & biology.

[28]  Mehmet Kirnap,et al.  Comparison of the effects of laser, ultrasound, and combined laser + ultrasound treatments in experimental tendon healing , 2004, Lasers in surgery and medicine.

[29]  C. Enwemeka,et al.  Combined ultrasound, electrical stimulation, and laser promote collagen synthesis with moderate changes in tendon biomechanics. , 1997, American journal of physical medicine & rehabilitation.

[30]  D. Draper,et al.  Rate of Temperature Decay in Human Muscle Following 3 MHz Ultrasound: The Stretching Window Revealed. , 1995, Journal of athletic training.

[31]  C. Enwemeka,et al.  Biochemistry and biomechanics of healing tendon: Part II. Effects of combined laser therapy and electrical stimulation. , 1998, Medicine and science in sports and exercise.

[32]  Benedicto de Campos Vidal,et al.  Image analysis of tendon helical superstructure using interference and polarized light microscopy. , 2003 .

[33]  Chukuka S Enwemeka,et al.  The efficacy of low-power lasers in tissue repair and pain control: a meta-analysis study. , 2004, Photomedicine and laser surgery.

[34]  C. Pinfildi,et al.  Effect of low level laser therapy (830 nm) with different therapy regimes on the process of tissue repair in partial lesion calcaneous tendon , 2009, Lasers in surgery and medicine.

[35]  Chih-Chin Hsu,et al.  Ultrasound stimulation of types I and III collagen expression of tendon cell and upregulation of transforming growth factor β , 2006, Journal of orthopaedic research : official publication of the Orthopaedic Research Society.

[36]  C. Enwemeka,et al.  The Effects of Therapeutic Ultrasound on Tendon Healing: A Biomechanical Study , 1989, American journal of physical medicine & rehabilitation.