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Hyaluronic acid and tendon or bone

Richard Simman, Walid Mari, Sara Younes, Michael Wilson
Objective: Hyalomatrix, a matrix that consists of esterified hyaluronic acid, covered with a removable, semipermeable silicone top layer, was used to generate granulation tissue in a series of 12 serious, surgical wounds of different etiologies. Methods: Many defects showed exposed muscle, tendons, and/or bone. After thorough debridement, the matrix was applied, in a number of cases, combined with negative pressure wound therapy. Results: All wounds developed granulation tissue in and on top of the matrix. Nine wounds were then closed with a split skin autograft...
2018: Eplasty
Eleonora Pintus, Matteo Baldassarri, Luca Perazzo, Simone Natali, Diego Ghinelli, Roberto Buda
Mesenchymal stem cells (MSCs) are pluripotent stem cells with the ability to differentiate into a variety of other connective tissue cells, such as chondral, bony, muscular, and tendon tissue. Bone marrow-derived MSCs are pluripotent cells that can differentiate among others into osteoblasts, adipocytes and chondrocytes.Bone marrow-derived cells may represent the future in osteochondral repair. A one-step arthroscopic technique is developed for cartilage repair, using a device to concentrate bone marrow-derived cells and collagen powder or hyaluronic acid membrane as scaffolds for cell support and platelet gel...
2018: Advances in Experimental Medicine and Biology
Zhuang Wei, Ramona L Reisdorf, Andrew R Thoreson, Gregory D Jay, Steven L Moran, Kai-Nan An, Peter C Amadio, Chunfeng Zhao
BACKGROUND: Flexor tendon injury is common, and tendon reconstruction is indicated clinically if the primary repair fails or cannot be performed immediately after tendon injury. The purpose of the current study was to compare clinically standard extrasynovial autologous graft (EAG) tendon and intrasynovial allogeneic graft (IAG) that had both undergone biolubricant surface modification in a canine in vivo model. METHODS: Twenty-four flexor digitorum profundus (FDP) tendons from the second and fifth digits of 12 dogs were used for this study...
April 4, 2018: Journal of Bone and Joint Surgery. American Volume
Richard Simman, Walid Mari, Sara Younes, Michael Wilson
Objectives: To analyze the efficacy of a hyaluronic acid--based matrix in the treatment of lesions where the extracellular matrix was lost. Methods: Prospective, noncomparative clinical case series. Results: Twelve patients with 12 serious surgical wounds of different etiologies participated in this project. Many defects showed exposed muscle, tendons, and/or bone. After thorough debridement, a hyaluronic acid--based matrix, with a removable, semipermeable silicone top layer, was applied for the purpose of generating a neodermis...
2018: Eplasty
Jakob M Townsend, Brian T Andrews, Yi Feng, Jinxi Wang, Randolph J Nudo, Erik Van Kampen, Stevin H Gehrke, Cory J Berkland, Michael S Detamore
Traumatic brain injury (TBI) is a life-threatening condition defined by internal brain herniation. Severe TBI is commonly treated by a two-stage surgical intervention, where decompressive craniectomy is first conducted to remove a large portion of calvarial bone and allow unimpeded brain swelling. In the second surgery, spaced weeks to months after the first, cranioplasty is performed to restore the cranial bone. Hydrogels with paste-like precursor solutions for surgical placement may potentially revolutionize TBI treatment by permitting a single-stage surgical intervention, capable of being implanted with the initial surgery, remaining pliable during brain swelling, and tuned to regenerate calvarial bone after brain swelling has subsided...
April 15, 2018: Acta Biomaterialia
Eric C Wilkerson, David J Goldberg
BACKGROUND: Aging hands tend to lose subcutaneous volume resulting in prominence of the underlying vessels, tendons, and bone contributing to an aged appearance. Dermal fillers have been successfully used to improve the appearance of the aging dorsal hand. OBJECTIVE: The objective is to evaluate the safety and efficacy of a small-particle hyaluronic acid (SPHA) injectable gel for the treatment of photoaged volume loss of the hands. MATERIALS AND METHODS: This is an open-label, prospective, randomized, interventional, study...
January 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
Hirokazu Honda, Masafumi Gotoh, Tomonoshin Kanazawa, Hiroki Ohzono, Hidehiro Nakamura, Keisuke Ohta, Kei-Ichiro Nakamura, Kanji Fukuda, Takeshi Teramura, Takashi Hashimoto, Shigeki Shichijo, Naoto Shiba
BACKGROUND: There is growing evidence that the subacromial injection of hyaluronic acid (HA) is effective for pain relief in rotator cuff tears; however, its effect on tendon-to-bone healing remains unknown. PURPOSE: To examine the effect of HA on the chondrogenesis of mesenchymal stem cells (MSCs) in vitro and on tendon-to-bone healing in a rotator cuff repair model. STUDY DESIGN: Controlled laboratory study. METHODS: Bilateral complete tears of the infraspinatus tendon were made in rabbits and subsequently repaired...
December 2017: American Journal of Sports Medicine
Marco Govoni, Anna Concetta Berardi, Claudio Muscari, Roberta Campardelli, Francesca Bonafè, Carlo Guarnieri, Ernesto Reverchon, Emanuele Giordano, Nicola Maffulli, Giovanna Della Porta
At present, injuries or rupture of tendons are treated by surgical repair or conservative approaches with unpredictable clinical outcome. Alternative strategies to repair tendon defects without the undesirable side effects associated with the current options are needed. With this in mind, a tissue engineering approach has gained considerable attention as a promising strategy. Here we investigated a synthetic three-dimensional (3D) microenvironment able to interact with stem cells and inducing, via coupled biochemical and physical signals, their early commitment toward the tenogenic lineage...
August 2017: Tissue Engineering. Part A
Takanobu Mashiko, Toshiharu Minabe, Tomomi Yamakawa, Jun Araki, Hitomi Sano, Kotaro Yoshimura
A deep burn wound is a critical condition that generally necessitates vascularized tissue coverage. We performed the injection of platelet-derived factor concentrates combined with non-cross-linked hyaluronic acid scaffolds for 2 patients with critical burn wounds with bone and tendon exposure and achieved successful healing. Hyaluronic acid was considered to have served as a controlled-release carrier of platelet-derived factors, being clinically effective for the treatment of deep burn wounds.
October 2016: Plastic and Reconstructive Surgery. Global Open
Farhaad R Riyaz, David Ozog
Aging of the hands results from both natural processes and chronic ultraviolet light exposure. Together, these cause textural and pigmentary changes, excess skin laxity, rhytides, and soft tissue atrophy that presents as prominent bones and tendons with easily visible veins. Many options are available for the reversal of these changes. Photoaging can be improved with chemical peels and light-based treatments (such as Q-switched lasers), resurfacing lasers, intense pulsed light, and photodynamic therapy. Soft tissue atrophy can be corrected with autologous fat, nonanimal stabilized hyaluronic acid, calcium hydroxylapatite, and poly-L lactic acid injections...
September 2015: Seminars in Cutaneous Medicine and Surgery
Chunfeng Zhao, Yasuhiro Ozasa, Haruhiko Shimura, Ramona L Reisdorf, Andrew R Thoreson, Gregory Jay, Steven L Moran, Kai-Nan An, Peter C Amadio
The purpose of the study was to test a novel treatment that carbodiimide-derivatized-hyaluronic acid-lubricin (cd-HA-lubricin) combined cell-based therapy in an immobilized flexor tendon repair in a canine model. Seventy-eight flexor tendons from 39 dogs were transected. One tendon was treated with cd-HA-lubricin plus an interpositional graft of 8 × 10(5) BMSCs and GDF-5. The other tendon was repaired without treatment. After 21 day of immobilization, 19 dogs were sacrificed; the remaining 20 dogs underwent a 21-day rehabilitation protocol before euthanasia...
January 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Karim Bakri, Steven L Moran
Osteoarthritis of the thumb carpometacarpal joint has a reported radiographic prevalence of 7 percent in men and 15 percent in women. Many patients remain minimally symptomatic; however, a subset of patients develop debilitating pain, weakness, and instability that severely limit hand function. Treatment options have focused on removal of the diseased trapezium and stabilization of the metacarpal base. Newer options, including carpometacarpal arthroplasty, may have a role in some patients for improving function...
February 2015: Plastic and Reconstructive Surgery
Chunfeng Zhao, Yasuhiro Ozasa, Ramona L Reisdorf, Andrew R Thoreson, Gregory D Jay, Kai-Nan An, Peter C Amadio
BACKGROUND: Adhesions and poor healing are complications of flexor tendon repair. QUESTIONS/PURPOSES: The purpose of this study was to investigate a tissue engineering approach to improve functional outcomes after flexor tendon repair in a canine model. METHODS: Flexor digitorum profundus tendons were lacerated and repaired in 60 dogs that were followed for 10, 21, or 42 days. One randomly selected repair from either the second or fifth digit in one paw in each dog was treated with carbodiimide-derivatized hyaluronic acid, gelatin, and lubricin plus autologous bone marrow stromal cells stimulated with growth and differentiation factor 5; control repair tendons were not treated...
September 2014: Clinical Orthopaedics and related Research
Chunfeng Zhao, Zhuang Wei, Ramona L Reisdorf, Andrew R Thoreson, Gregory D Jay, Steven L Moran, Kai-Nan An, Peter C Amadio
BACKGROUND: Using allograft is an attractive alternative for flexor tendon reconstruction because of the lack of donor-site morbidity, and better matching to the intrasynovial environment. The purpose of this study was to use biological lubricant molecules to modify the graft surface to decrease adhesions and improve digit function. METHODS: Twenty-eight flexor digitorum profundus tendons from the second and fifth digits of 14 dogs were lacerated and repaired to create a model with repair failure and scar digit for tendon reconstruction...
May 2014: Plastic and Reconstructive Surgery
Yasuhiro Ozasa, Peter C Amadio, Andrew R Thoreson, Kai-Nan An, Chunfeng Zhao
PURPOSE: Delayed healing is a common problem whenever tendon allografts are used for tendon or ligament reconstruction. Repopulating the allograft with host cells may accelerate tendon regeneration, but cell penetration into the allograft tendon is limited. Processing the tendon surface with slits that guide cells into the allograft substrate may improve healing. The purpose of this study was to describe a surface modification of allograft tendon that includes slits to aid cell repopulation and lubrication to enhance tendon gliding...
February 2014: Tissue Engineering. Part A
Biljana Janković, Jan Pelipenko, Miha Škarabot, Igor Muševič, Julijana Kristl
This paper especially highlights the finding that the mechanical properties of polymeric nanofibers can be tuned by changing the fiber size as well as the composition. For this purpose, the bending Young's modulus was determined using atomic force microscope by involving single-material (polyvinyl alcohol (PVA), polyethylene oxide (PEO 400K)) and composite nanofibers (polyvinyl alcohol/hyaluronic acid (PVA/HA), polyethylene oxide/chitosan (PEO 400K/CS)). The mechanical property, namely the bending Young's modulus, increases as the diameter of the fibers decreases from the bulk down to the nanometer regime (less than 200 nm)...
October 15, 2013: International Journal of Pharmaceutics
Chunfeng Zhao, Takahiro Hashimoto, Ramona L Kirk, Andrew R Thoreson, Gregory D Jay, Steven L Moran, Kai-Nan An, Peter C Amadio
We assessed surface coating with carbodiimide derivatized hyaluronic acid combined with lubricin (cd-HA-Lubricin) as a way to improve extrasynovial tendon surface quality and, consequently, the functional results in flexor tendon reconstruction, using a canine in vivo model. The second and fifth flexor digitorum profundus tendons from 14 dogs were reconstructed with autologs peroneus longus (PL) tendons 6 weeks after a failed primary repair. One digit was treated with cd-HA-Lubricin, and the other was treated with saline as the control...
June 2013: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Chad A Marsh, Robert K Schneider, Sarah N Sampson, Greg D Roberts
OBJECTIVE: To determine treatment outcome on the basis of pathological changes identified on MRI and lameness duration in horses with navicular syndrome that underwent injection of corticosteroid and hyaluronan into the navicular bursa. DESIGN: Retrospective case series. ANIMALS: 101 horses with navicular syndrome. PROCEDURES: Medical records of horses with signs of navicular syndrome evaluated between January 2000 and December 2008 were reviewed...
November 15, 2012: Journal of the American Veterinary Medical Association
T I Wodewotzky, J F Lima-Neto, O C M Pereira-Júnior, M J Sudano, S A F Lima, P R O Bersano, S A Yoshioka, F C Landim-Alvarenga
Support structures for dermal regeneration are composed of biodegradable and bioresorbable polymers, animal skin or tendons, or are bacteria products. The use of such materials is controversial due to their low efficiency. An important area within tissue engineering is the application of multipotent mesenchymal stromal cells (MSCs) to reparative surgery. The combined use of biodegradable membranes with stem cell therapy may lead to promising results for patients undergoing unsuccessful conventional treatments...
December 2012: Brazilian Journal of Medical and Biological Research
Minoru Takemoto, Seijiro Mori, Masafumi Kuzuya, Shinya Yoshimoto, Akira Shimamoto, Masahiko Igarashi, Yasuhito Tanaka, Tetsuro Miki, Koutaro Yokote
AIM: Werner syndrome (WS) is an autosomal recessive disorder of progeroid symptoms and signs. It is caused by mutations in the WRN gene, which encodes a RecQ DNA helicase. The aim of this study was to revise the diagnostic criteria for Japanese Werner syndrome. METHODS: A nationwide epidemiological study was carried out from 2009 to 2011, involving 6921 surveys sent to hospitals with more than 200 beds to assess existing WS diagnostic criteria, as well as additional signs of high incidence on the basis of clinical experience with WS...
April 2013: Geriatrics & Gerontology International
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