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Tendinosis in Trigg...
Tendinosis in Trigger Finger
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- Lundin, Anna-Carin (författare)
- Linköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten
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- Aspenberg, Per, Professor emeritius (preses)
- Linköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten,Region Östergötland, Ortopedkliniken i Linköping
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- Eliasson T., Pernilla, Dr (preses)
- Linköpings universitet,Avdelningen för Kirurgi, Ortopedi och Onkologi,Medicinska fakulteten
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- Zdolsek, Johann, Dr. (preses)
- Linköpings universitet,Kirurgi,Medicinska fakulteten,Region Östergötland, Hand- och plastikkirurgiska kliniken US
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- Nylander, Göran, Dr. (preses)
- Linköpings universitet,Avdelningen för kliniska vetenskaper,Medicinska fakulteten,Region Östergötland, Hand- och plastikkirurgiska kliniken US
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- Dahlin, Lars, Professor (opponent)
- Institutionen för translationell medicin-handkirurgi, Lunds Universitet, Skånes universitetssjukhus, Malmö, Sverige.
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(creator_code:org_t)
- ISBN 9789176855355
- Linköping : Linköping University Electronic Press, 2017
- Engelska 61 s.
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Serie: Linköping University Medical Dissertations, 0345-0082 ; 1573
- Relaterad länk:
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
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- Trigger finger is one of the most common hand conditions, with a prevalence of almost 3%. The aetiology remains unclear even though many causes have been suggested. The prevailing paradigm is that the pathogenesis of trigger finger is ascribed to primary changes in the first fibrous condensation of the tendon sheath (A1-pulley). Several studies have investigated pathology in the pulley, but few have investigated the tendon. The general aim of this thesis was to find out if there is pathology in the trigger finger tendon and to define it.We first looked at trigger finger tendon biopsies in a light microscope, and found that they were histologically different from healthy tendons. They showed signs of micro-ruptures, collagen degradation, increased amounts of ground substance, both hyper- and hypo-cellular areas, round active cell nuclei and absence of inflammatory cells, all similar to tendinosis. The histological picture was further assessed by using a scoring system for Achilles tendinosis. The trigger finger tendons scored high, suggesting a similar histopathology.Next, we performed a quantitative real-time polymerase chain reaction (qPCR) on trigger finger tendons. We assessed the mRNA expression of 10 genes, which have been described to be differently expressed in Achilles tendinosis (collagen 1 and 3, versican, decorin, biglycan, aggrecan, MMP-2, MMP-3, ADAMTS-5, and TIMP-3). The overall expression pattern agreed with previous studies on Achilles tendinosis, suggesting that the cellular function in trigger finger tendons is disturbed in a similar way as in Achilles tendinosis.Recent experimental and observational research has suggested potential side effects of statin treatment on tendons, but firm evidence was lacking. We performed an epidemiological study on two large population-based cohorts. Statin use was found to increase the risk of both trigger finger and tendinosis in the shoulder and Achilles tendons, especially among men. This suggests a similar pathology in trigger finger and tendinosis.We have also studied the time to treatment effect after a single injection of glucocorticoid in trigger finger. Our results suggest that 60-80% of patients can expect resolution of the triggering within 14 days, and half of them within seven days. This result allows correct information to be given to the patient and proper planning of follow-ups.In conclusion, the pathology in trigger finger tendons is similar to tendinosis in other tendons.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Gastroenterologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Gastroenterology and Hepatology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Neurologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Neurology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Hematologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Hematology (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Annan klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Other Clinical Medicine (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Klinisk laboratoriemedicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Clinical Laboratory Medicine (hsv//eng)
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