Результаты поиска

Chronic Injuries to the Distal Biceps and Triceps Tendons: Current Evidence, Treatment Strategies, and Clinical Implications.

BACKGROUND: Chronic ruptures to the distal biceps and triceps tendons of the elbow are rare but clinically relevant injuries that may result in persistent functional impairment if left untreated. Tendon retraction, scarring, and degeneration significantly complicate surgical management and require meticulous diagnostic and therapeutic planning. OBJECTIVE: This review summarises current evidence on the epidemiology, diagnosis, and treatment strategies for chronic ruptures to the tendon of the distal biceps and triceps tendon and aims to provide clinically applicable recommendations. CONTENT: …

Beyond Conventional Donor Tendons: Flexor Tendon Reconstruction with Fascia Lata-A Narrative Review and Case Illustration.

BACKGROUND: Hand flexor tendon injuries can be treated with primary repair by direct tenorrhaphy or, when this option is not feasible, with … CONCLUSIONS: FL represents a reliable and versatile autologous graft option when conventional donor tendons are unavailable. Further biomechanical and clinical research is needed to establish its long-term performance and optimal applications in hand surgery.

On-lay Anatomical Reconstruction of the Superficial and Deep MCL and POL With Hamstrings Tendons Autograft.

BACKGROUND: Injuries to the medial collateral ligament (MCL) and the posterior oblique ligament (POL), isolated or associated with cruciate … ay anatomical reconstruction of the superficial and deep bundles of the MCL and POL using hamstring tendons. The patient is in a supine position with the knee flexed at 90°. An incision is made in the medial compartment of the knee, at the level of the medial collateral ligament, after which the hamstring tendons are harvested with an open tendon stripper …

A Standardized Acupotomy Protocol For The Treatment of Tenosynovitis of Hand Flexor Tendons In Human Patients.

Tenosynovitis of hand flexor tendons (THFT) is a high-incidence overuse injury of the hand. Its pathological essence is a dynamic imbalance between the volume of the tendon sheath and the tendon caused by fibrous connective tissue hyperplasia in the A1 pulley region, leading to mechanical entrapment and typical clinical symptoms, including palmar pain, triggering, and limited movement. Traditional conservative treatments yield suboptimal long-term efficacy, while open surgery is associated with high trauma and complication risks, creating demand for a minimally invasive therapeutic approach. A…

Amniotic Membrane and Stem Cells Can Improve the Immunohistochemical Profile of Achilles Tendons in Injured Rats.

Disorders of the Achilles tendon are common and have a major socio-economic impact. Current treatments (drugs, physiotherapy, and surgery) d … only 2 mL of 0.9% saline around the lesion. After four weeks, the animals were euthanized, and the tendons were sent for histological analysis (Picrosirius Red) and immunohistochemistry (IL-6, IL-4, and IL-13). Results: Analysis of type I and type III collagen fibers showed no differences between groups. However, the SC + AM group showed the highest expr …

Effects of chemical and physical deimmunogenicity methods on the biological and biomechanical properties of allogeneic tendons.

To compare the differences in biological and biomechanical characteristics of cadaver tendon treated by deep freezing, 95wt.% ethanol, tributyl phosphate (TBP), and sodium dodecyl sulfate (SDS) respectively. A total of 50 fresh tendon specimens were randomly divided into five groups, and four groups were treated with deep freezing (- 80 °C), 95wt.% ethanol, 1% TBP, or 1% SDS, respectively. Hematoxylin-eosin (HE), toluidine blue (TB) and 4',6-diamidino-2-phenylindole (DAPI) staining, and transmission/scanning electron microscope observations were performed. Then, cyclic creep and tensile tests

Mechanical properties and microstructural organization of common ulnar collateral ligament grafts: Palmaris longus and gracilis tendons.

Ulnar collateral ligament (UCL) injuries are becoming increasingly common. The palmaris longus (PL) and gracilis (GR) tendons are the most common grafts used in UCL reconstructions. While clinical studies have demonstrated relatively similar outcomes for either graft, there is little quantitative data describing these grafts from a material perspective, specifically the mechanical and microstructural properties of these tissues and how they respond under dynamic loading. The purpose of this descriptive laboratory study was to quantify and compare the mechanical and microstructural properties o…

Use of Gracile and semi-tendinosus tendons (GRAST) for the reconstruction of irreparable rotator cuff tears.

BACKGROUND: Irreparable rotator cuff tears are common and difficult to treat. Techniques for "filling the loss of substance" require fixatio … of the scapula. METHODS: This was a cadaveric study with the use of ten specimens. The GRA and ST tendons were harvested, braided and reinforced with suture. An experimental tear of the supraspinatus (SS) and upper infraspinatus (IS) retracted at the glenoid was made. The GRAST transplant was positioned over the tear. The transplant was attached to the …

Elastic fibers in orthopedics: Form and function in tendons and ligaments, clinical implications, and future directions.

Elastic fibers are an essential component of the extracellular matrix of connective tissues. The focus of both clinical management and scientific investigation of elastic fiber disorders has centered on the cardiovascular manifestations due to their significant impact on morbidity and mortality. As such, the current understanding of the orthopedic conditions experienced by these patients is limited. The musculoskeletal implications of more subtle elastic fiber abnormalities, whether due to allelic variants or age-related tissue degeneration, are also not well understood. Recent advances have b

Sonographic and radiographic evaluation of the extensor tendons in early postoperative period after total knee arthroplasty.

OBJECTIVE: To prospectively assess the early changes in the quadriceps and patellar tendons before and after total knee arthroplasty using ultrasound, shear wave elastography, and X-rays. MATERIALS AND METHODS: Radiographs, ultrasound, and shear wave elastography were performed on 23 patients (16 women; aged 51-85, mean 66 ± 9 years) before and after surgery at 6 weeks and on 11 patients at 3 months. Patellar position and patellar tendon lengths were evaluated by radiography; joint effusion or synovitis, quadriceps and patellar tendon lengths, and thicknesses, echogenicity, vascularity, and s…

Follistatin Mitigates Myofibroblast Discrimination и Collagen System of Fibroblast из Scar Tise вокруг поврежденного Flexor Tendons.

ЦЕЛЬ: Цель этого исследования состояла в изучении воздействия гена FST на ингибирование фиброза в фиброблатических клетках от шрамных тканей вокруг отремонтированных сухожилий зоны II. МАТЕРИАЛЫ И МЕТОДЫ: Иммуногистохимия была проведена на фибробалластных клетках, передающихся с помощью аденовируса-Лакза (Ад-Лакза) в качестве маркерного гена (контроля), или с аденовирусом-ФСТ (АД-ФСТ) в качестве терапевтического гена. Культуры фибробласта без аденовального воздействия служат средством контроля. Результаты: Фибробластические клетки, передающиеся с помощью AD-FST, продемонстрировали значительное

Совпадение в аннотации оригинала
PURPOSE: The aim of this study was to investigate the effect of FST gene on the inhibition of fibrosis in fibroblastic cells from scar tissue around repaired zone II flexor tendons. MATERIALS AND METHODS: Immunohistochemistry was conducted on fibroblast cells transfected with adenovirus-LacZ (Ad-LacZ) as a marker gene (control), or with adenovirus-FST (Ad-F…

2-Mm Diameter Operative Tendoscopy of the Tibialis Posterior, Peroneal, and Achilles Tendons: A Cadaveric Study.

BACKGROUND: Technical innovation now offers the possibility of 2-mm-diameter operative tendoscopy with disposable arthroscopes and tablet-like control units. The promises of new technology should be critically scrutinized. Therefore, this study assessed whether 2-mm-diameter operative tendoscopy of the tibialis posterior, peroneal, and Achilles tendons was safe and effective in a cadaveric model. METHODS: A 2-mm-diameter arthroscopic system was used to perform a tendoscopic procedure in 10 nonpaired, fresh-frozen, human ankles. Standard tendoscopic portals were utilized. Visual examination an…

The thickening of flexor tendons pulleys: a useful ultrasonographical sign in the diagnosis of psoriatic arthritis.

PURPOSE: To investigate the frequency of thickening of pulleys for flexor tendons in patients with early arthritis in their hands, and to evaluate it as a predictive sign of PsA. METHODS: A prospective observational study involving 228 consecutive patients presenting with recent onset of arthritis in their hands was conducted at rheumatology outpatient clinics in the Veneto region of Italy between October 2014 and September 2017. Diabetic patients were excluded because of the high frequency of trigger finger. The final diagnosis of the rheumatologist delivered after 12 months of follow-up, wa…

Echocardiographic assessment of feline false tendons and their relationship with focal thickening of the left ventricle.

BACKGROUND: False tendons (FTs) are string-like structures in the left ventricle. A FT might produce focal thickening at its insertion region of the left ventricle, which could be mistaken for focal hypertrophic cardiomyopathy. OBJECTIVES: To perform a prospective, echocardiographic follow-up examination of feline FTs and compare the wall thickness at the FT insertion region and a normal region without FTs at both examinations. ANIMALS: One hundred twenty-eight cats with one or multiple FTs without other cardiac abnormalities or systemic disease. METHODS: Measurements of the interventricula…

Tuberculosis tenosynovitis with multiple rice bodies of the flexor tendons in the wrist: A case report.

INTRODUCTION: One of the infectious causes of wrist tenosynovitis is Mycobacterium tuberculosis. Tendon sheath involvement is rare. Herein, we report the diagnosis and treatment of a patient with neglected wrist flexor tendon sheath tuberculosis. PRESENTATION OF CASE: We report the diagnosis and treatment of a man aged 50 years with neglected wrist flexor tendon sheath tuberculosis. DISCUSSION: In patients with tendon sheath involvement, symptoms are generally non-specific such as pain and swelling; therefore, it can be diagnosed late due to the lack of systemic symptoms. Wrist X-ray imaging

The prevalence of tenosynovitis of the interosseous tendons of the hand in patients with rheumatoid arthritis.

AIM: The aim of this study was to establish the prevalence of tenosynovitis affecting the interosseous tendons of the hand in a rheumatoid arthritis (RA) population and to assess for association with metacarpophalangeal (MCP) joint synovitis, flexor tendon tenosynovitis or ulnar drift. METHODS: Forty-four patients with RA underwent hand MRI along with 20 normal controls. Coronal 3D T1 VIBE sequences pre- and post-contrast were performed and reconstructed. The presence of interosseous tendon tenosynovitis was recorded alongside MCP joint synovitis, flexor tendon tenosynovitis and ulnar drift. …

Regulatory role of collagen V in establishing mechanical properties of tendons and ligaments is tissue dependent.

Patients with classic (type I) Ehlers-Danlos syndrome (EDS), characterized by heterozygous mutations in the Col5a1 and Col5a2 genes, exhibit … joint instability in classic EDS may be caused in part by insufficient mechanical properties of the tendons and ligaments surrounding each joint.

The time course of in vivo recovery of transverse strain in high-stress tendons following exercise.

OBJECTIVE: To evaluate the time course of the recovery of transverse strain in the Achilles and patellar tendon following a bout of resistance exercise. METHODS: Seventeen healthy adults underwent sonographic examination of the right patellar (n=9) and Achilles (n=8) tendons immediately prior to and following 90 repetitions of weight-bearing quadriceps and gastrocnemius-resistance exercise performed against an effective resistance of 175% and 250% body weight, respectively. Sagittal tendon thickness was determined 20 mm from the enthesis and transverse strain, as defined by the stretch ratio,…