The Experts below are selected from a list of 12966 Experts worldwide ranked by ideXlab platform
James Chang - One of the best experts on this subject based on the ideXlab platform.
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Complications of common hand and wrist Surgery procedures: flexor and extensor Tendon Surgery.
Journal of Bone and Joint Surgery American Volume, 2014Co-Authors: Lauren H. Fischer, Joshua M. Abzug, A. Lee Osterman, Peter J. Stern, James ChangAbstract:Orthopaedic and hand surgeons frequently treat disorders of the flexor and extensor Tendon systems. Common conditions, such as trigger finger, de Quervain tenosynovitis, extensor Tendon injury, and zone II flexor Tendon injury, can be challenging to treat. Complications that limit normal hand function still occur despite advances in surgical techniques and therapy protocols. It is helpful to be aware of the complications related to the treatment of these hand disorders and understand surgical techniques to minimize their frequency.
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Tissue engineering in flexor Tendon Surgery: current state and future advances.
The Journal of hand surgery European volume, 2013Co-Authors: Michael G. Galvez, Chris Crowe, Simon Farnebo, James ChangAbstract:Tissue engineering of flexor Tendons addresses a challenge often faced by hand surgeons: the restoration of function and improvement of healing with a limited supply of donor Tendons. Creating an engineered Tendon construct is dependent upon understanding the normal healing mechanisms of the Tendon and Tendon sheath. The production of a Tendon construct includes: creating a three-dimensional scaffold; seeding cells within the scaffold; encouraging cellular growth within the scaffold while maintaining a gliding surface; and finally ensuring mechanical strength. An effective construct incorporates these factors in its design, with the ultimate goal of creating Tendon substitutes that are readily available to the reconstructive hand surgeon.
Bengt Gerdin - One of the best experts on this subject based on the ideXlab platform.
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Sodium hyaluronate as an adjunct in adhesion prevention after flexor Tendon Surgery in rabbits
The Journal of hand surgery, 1992Co-Authors: Lars Hagberg, Bengt GerdinAbstract:Abstract Topical application of sodium-hyaluronate (NaHe) has been proposed to decrease the formation of adhesions after Tendon Surgery, but reports published thus far have been contradictory. A new test instrument capable of simultaneous registration of tensile load, Tendon excursion, and joint motion was therefore developed and used to evaluate the effect of locally administered NaHe of different concentrations and molecular weights on the outcome after tenorrhaphy of rabbit hindlimb flexor Tendons. Immediately after tenorrhaphy, NaHe or saline solution was deposited into the Tendon sheath. The functional characteristics of the digits were evaluated 15 days after Surgery. NaHe with a concentration of 19 mg/ml and a molecular weight of 6 × 10 6 significantly limited the strength of the adhesions formed without impairment of tensile strength. These results suggest that the efficacy of NaHe is affected by both the concentration and the molecular weight of the NaHe preparation used.
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Determination of biomechanical characteristics of restrictive adhesions and of functional impairment after flexor Tendon Surgery: A methodological study of rabbits
Journal of biomechanics, 1991Co-Authors: Lars Hagberg, Ove Wik, Bengt GerdinAbstract:Abstract Formation of restrictive adhesions is one of the main obstacles in rehabilitation following hand Surgery. Most experimental work, however, involves only a macroscopic and/or histologic evaluation of the amount of adhesions, and their functional characteristics are poorly described. The aim of this study was to develop an experimental technique for characterization of the biomechanical properties of the finger-Tendon unit. An instrument was developed for continuous and simultaneous recording of tensile load, Tendon excursion and angular rotation in the distal interphalangeal joint of rabbit digits. Utilizing this instrument, it was revealed that the first 50° of flexion required virtually no tensile load either in unoperated digits or immediately after tenorrhaphy. Thereafter, the load required to obtain further flexion was progressively increased. The strength of adhesions, determined 2 weeks after tenorrhaphy, was best expressed as the maximum tensile load recorded before 50° of flexion was reached. This measurement could also be used to register the strength of the Tendon repair and to detect partial Tendon rupture during the measurement. The technique allows both adequate measurements of the strength of the adhesions and of the Tendon gliding ability after flexor Tendon Surgery.
Kagan Ozer - One of the best experts on this subject based on the ideXlab platform.
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Adherence to therapy after flexor Tendon Surgery at a level 1 trauma center
HAND, 2014Co-Authors: Serdar Toker, Kyros Ipaktchi, Allison Williams, Kagan OzerAbstract:Background Nonadherence to postoperative therapy protocols can adversely affect the outcome after flexor Tendon Surgery. In this study, we hypothesize that patients with partial or no insurance coverage for their aftercare are less likely to attend postoperative therapy sessions and have a higher incidence of a poorer outcome than those who have full insurance coverage. Methods We analyzed 159 patients with flexor Tendon injuries at a level 1 trauma center. Demographic variables along with the clinical outcome data were collected and cross-tabulated. Associations among descriptive and clinical variables were assessed using Fisher’s Exact tests and chi-square analyses. Comparisons for continuous variables were performed using the Kruskal-Wallis Test. Results Eighteen patients (11.3 %) had an injury in zone 1, followed by 68 (42.8 %) in zone 2, 15 (9.4 %) in zone 3, 9 (5.7 %) in zone 4, 38 (23.9 %) in zone 5, and 11 (6.9 %) in zone 6. Patients completed 8.2 therapy sessions on average. Patients had state assistance program (40.3 %), private insurance (35.2 %), Medicaid/Medicare (11.3 %), worker’s compensation (8.8 %) insurance, or paid themselves (13.2 %). Fifty-three (33.3 %) patients had excellent outcomes, 46 (29 %) had good, 40 (25 %) had fair, and 20 (12.5 %) had a poor outcome. Patients responsible to pay for their aftercare were significantly less likely to be adherent to therapy and had poorer outcomes than those with full coverage. Conclusion Patients responsible for the pay of their postoperative rehabilitation are less likely to participate in therapy and may be at a higher risk of having a poor outcome.
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Adherence to therapy after flexor Tendon Surgery at a level 1 trauma center
Hand (New York N.Y.), 2014Co-Authors: Serdar Toker, Nikhil R. Oak, Allison E. Williams, Kyros Ipaktchi, Kagan OzerAbstract:Background Nonadherence to postoperative therapy protocols can adversely affect the outcome after flexor Tendon Surgery. In this study, we hypothesize that patients with partial or no insurance coverage for their aftercare are less likely to attend postoperative therapy sessions and have a higher incidence of a poorer outcome than those who have full insurance coverage.
Michael G. Galvez - One of the best experts on this subject based on the ideXlab platform.
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Tissue engineering in flexor Tendon Surgery: current state and future advances.
The Journal of hand surgery European volume, 2013Co-Authors: Michael G. Galvez, Chris Crowe, Simon Farnebo, James ChangAbstract:Tissue engineering of flexor Tendons addresses a challenge often faced by hand surgeons: the restoration of function and improvement of healing with a limited supply of donor Tendons. Creating an engineered Tendon construct is dependent upon understanding the normal healing mechanisms of the Tendon and Tendon sheath. The production of a Tendon construct includes: creating a three-dimensional scaffold; seeding cells within the scaffold; encouraging cellular growth within the scaffold while maintaining a gliding surface; and finally ensuring mechanical strength. An effective construct incorporates these factors in its design, with the ultimate goal of creating Tendon substitutes that are readily available to the reconstructive hand surgeon.
Jin Bo Tang - One of the best experts on this subject based on the ideXlab platform.
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Wide-Awake Primary Flexor Tendon Repair, Tenolysis, and Tendon Transfer.
Clinics in Orthopedic Surgery, 2015Co-Authors: Jin Bo TangAbstract:Tendon Surgery is unique because it should ensure Tendon gliding after Surgery. Tendon Surgery now can be performed under local anesthesia without tourniquet, by injecting epinephrine mixed with lidocaine, to achieve vasoconstriction in the area of Surgery. This method allows the Tendon to move actively during Surgery to test Tendon function intraoperatively and to ensure the Tendon is properly repaired before leaving the operating table. I applied this method to primary flexor Tendon repair in zone 1 or 2, tenolysis, and Tendon transfer, and found this approach makes Tendon Surgery easier and more reliable. This article describes the method that I have used for Tendon Surgery.
