18 results on '"Kotkansalo T"'
Search Results
2. The Learning Curve in Arthroscopic Scaphoid Resection and Midcarpal Arthrodesis
- Author
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Pääkkönen, M, Vihanto, A, Kotkansalo, T, Pääkkönen, M, Vihanto, A, and Kotkansalo, T
- Published
- 2020
3. Hand surgery in Finland
- Author
-
Kotkansalo, T., primary and Waris, E., additional
- Published
- 2017
- Full Text
- View/download PDF
4. Long-term effects of toe transfers on the donor feet
- Author
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Kotkansalo, T., primary, Elo, P., additional, Luukkaala, T., additional, and Vilkki, S. K., additional
- Published
- 2014
- Full Text
- View/download PDF
5. Cysteine proteinase inhibitor cystatin A in breast cancer
- Author
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Teijo Kuopio, Kankaanranta, A., Jalava, P., Kronqvist, P., Kotkansalo, T., Weber, E., and Collan, Y.
- Subjects
Risk ,Paraffin Embedding ,Carcinoma, Ductal, Breast ,Breast Neoplasms ,Middle Aged ,Prognosis ,Adenocarcinoma, Mucinous ,Cystatins ,Neoplasm Proteins ,Immunoenzyme Techniques ,Carcinoma, Lobular ,Lymphatic Metastasis ,Carcinoma, Squamous Cell ,Disease Progression ,Humans ,Female ,Tumor Suppressor Protein p53 ,Aged ,Retrospective Studies - Abstract
Cystatin A (acid cysteine proteinase inhibitor; ACPI) is a natural inhibitor of cysteine proteinases. It has been suggested that an inverse correlation exists between cystatin A and malignant progression. We wanted to assess the biological and clinical significance of cystatin A in infiltrative breast carcinoma by immunohistochemical staining. Formalin-fixed paraffin-embedded material from 440 cases treated during the years 1988-1991 was used in the study. After exclusion of patients with disseminated disease at diagnosis, previous contralateral breast carcinoma, and absence of follow-up data, 384 patients could be included in the survival analysis. For immunohistochemical analysis of cystatin A, we used monoclonal cystatin A antibody WR-23/2/3/3, the binding of which was detected by the avidin-biotin-peroxidase method. Immunohistochemical analysis of Bcl-2 and p53 was also done, and mitotic activity was evaluated. Positive staining for cystatin A was found in 52 of 440 cases. The staining was irregular but showed irrefutably positive areas within neoplastic tissue. Most of the positive tumors were of the ductal infiltrative type, but two were mucinous carcinomas, one medullary and one squamous cell carcinoma. No lobular carcinomas showed positive staining. Focal cystatin A positivity was seen in myoepithelial cells of benign ducts. Occasional apoptotic bodies within the neoplasm showed strong positivity for cystatin A. Tumors positive for cystatin A were of larger size and had higher mitotic activity than cystatin A-negative tumors. Cystatin A was associated with negative Bcl-2 staining, but there was no statistically significant association between axillary lymph node status or p53 immunostaining. The risk for breast cancer-related death was significantly higher in patients with cystatin A-positive tumors than in those with cystatin A-negative ones. The risk increase was significant also in lymph node-negative patients. After adjusting for the effect of tumor size, histological grade, and lymph node status, cystatin A-positive patients still had a higher risk of death. Patients with cystatin A and p53 coexpression had a higher risk of death than the other patients. The findings reveal a new variant of aggressive breast cancer. This type of carcinoma may develop during tumor progression through genetic instability that allows cystatin A expression and gives growth advantage to a clone of tumor cells.
- Published
- 1998
6. Long-term functional results of microvascular toe-to-thumb reconstruction
- Author
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Kotkansalo, T., primary, Vilkki, S., additional, Elo, P., additional, and Luukkaala, T., additional
- Published
- 2010
- Full Text
- View/download PDF
7. The functional results of post-traumatic metacarpal hand reconstruction with microvascular toe transfers
- Author
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KOTKANSALO, T., primary, VILKKI, S. K., additional, and ELO, P., additional
- Published
- 2009
- Full Text
- View/download PDF
8. Long-term functional results of microvascular toe-to-thumb reconstruction.
- Author
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Kotkansalo, T., Vilkki, S., Elo, P., and Luukkaala, T.
- Subjects
MICROSURGERY ,SURGERY ,AMPUTATION ,THUMB ,TOES - Abstract
The purpose of this study was to evaluate the long-term functional results of microvascular toe-to-thumb reconstruction after trauma. Forty-one patients meeting the inclusion criteria were available for a clinical follow-up study. The function of the hand was assessed with questionnaires as well as with modified Tamai and Sollerman hand function tests. According to the questionnaires, most activities were considered easy or quite easy and the majority of the patients (36/41) managed with no or minor complaints. Clinical tests showed good recovery of function. Patient satisfaction was high. There were superficial infections in five hands and in six donor feet. In total, 16 late corrective operations were done to eight patients. Microvascular toe transfer is a good option for grip reconstruction after thumb amputation. The extent of the initial injury influences the achievable outcome, yet even a single toe transfer can restore adequate grip function. [ABSTRACT FROM PUBLISHER]
- Published
- 2011
- Full Text
- View/download PDF
9. Arthroscopic Scaphotrapeziotrapezoid Joint Fusion for Osteoarthritis.
- Author
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Myllykoski J, Räisänen MP, Kotkansalo T, Juntunen M, and Pääkkönen M
- Subjects
- Humans, Middle Aged, Retrospective Studies, Follow-Up Studies, Prospective Studies, Wrist Joint surgery, Osteoarthritis surgery
- Abstract
Background: Arthroscopic scaphotrapeziotrapezoid (STT) fusion (ASTTF) has emerged in the recent decade as an option for traditional open surgery. This retrospective study describes our technique and results of ASTTF. Methods: Medical records and radiological data of patient who had undergone ASTTF between 2014 and 2022 in two tertiary hospitals were reviewed. Results: Five ASTTF in four patients were identified. The mean age of the patients were 52.4 years. Fusion was achieved in four out of five wrists (80%). The mean postoperative radio-scaphoid angle was 48°, grip 32 kg (70% compared to contralateral hand), extension 54° (86%) and flexion 46° (93%). The mean follow-up time was 18 months (range 5 months to 4 years). One wrist (20%) developed STT non-union requiring a reoperation 2 years after index surgery. Conclusions: ASTTF is a technically challenging procedure with a long learning curve and surgery time. However, ASTTF is less invasive compared to the open procedure and our results were like the open procedures described in literature. Further studies are needed to compare the benefits and results of open and ASTTF in a prospective and randomised setup. Level of Evidence: Level IV (Therapeutic).
- Published
- 2023
- Full Text
- View/download PDF
10. The Learning Curve and Pitfalls of Arthroscopic Four-Corner Arthrodesis.
- Author
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Vihanto A, Kotkansalo T, and Pääkkönen M
- Abstract
Background Midcarpal "four-corner" wrist arthrodesis may be done from an open arthrotomy or arthroscopically. Purpose This study aimed to examine the results of the recently described arthroscopic four-corner arthrodesis and whether the procedure seems to have any merit compared with the open technique. Patients and Methods We retrospectively identified eight patients with nine cases of arthroscopic four-corner arthrodesis performed at our institution, 2014 to 2017. The underlying pathologies were scapholunate advanced collapse ( n = 6), Preiser's disease ( n = 1), radioscaphoid ( n = 1), or capitolunar ( n = 1) osteoarthritis. Osteosynthesis was done with cannulated compression screws. Results Operating time for the first surgery was 198 minutes while the final one lasted 132 minutes. All patients achieved fusion. Three patients required a reoperation; one for screw malposition with screw removal, one for tendon reconstruction and screw removal due to a tendon injury induced by a retracted screw, and one for scaphoid impingement with removal of the scaphoid remnants. One patient experienced a probable superficial radial nerve injury. The follow-up time was 5 to 16 months. Conclusion The arthroscopic approach is technically extremely demanding and has a learning curve. Thorough resection of the scaphoid is recommended to avoid potential impingement. Level of Evidence This is a level IV, retrospective case series.
- Published
- 2019
- Full Text
- View/download PDF
11. Hand surgery in Finland.
- Author
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Kotkansalo T and Waris E
- Subjects
- Finland, Humans, Orthopedic Procedures statistics & numerical data, Orthopedics education, Hand surgery
- Published
- 2017
- Full Text
- View/download PDF
12. Long-term effects of toe transfers on the donor feet.
- Author
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Kotkansalo T, Elo P, Luukkaala T, and Vilkki SK
- Subjects
- Adolescent, Adult, Child, Child, Preschool, Female, Follow-Up Studies, Humans, Male, Middle Aged, Postoperative Complications prevention & control, Young Adult, Amputation, Traumatic surgery, Foot Deformities, Acquired etiology, Hand Injuries surgery, Microsurgery, Postoperative Complications etiology, Plastic Surgery Procedures, Toes transplantation, Transplant Donor Site
- Abstract
The purpose of this study was to assess the long-term consequences to the donor site of microvascular transfer of one or two toes. This was achieved retrospectively by patient-reported, clinician-based and functional testing. Weight-bearing radiographs were taken of both feet. Seventy-four patients (80 feet, 84 transferred toes) participated in this study. After a median of 16 years follow-up, most patients reported no or only minor complaints concerning the donor site. Cold intolerance and pain during exertion were the most commonly reported complaints. According to the two functional scores used, 92% of patients reported no or minor complaint and 83% of patients received a good result at the donor feet. Maintaining first ray alignment and avoiding early postoperative complications predicted a better outcome. Even though donor site ramifications should be expected after microvascular transfer of toes, patient satisfaction remains high., (© The Author(s) 2014.)
- Published
- 2014
- Full Text
- View/download PDF
13. [Fingertip injuries].
- Author
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Kotkansalo T
- Subjects
- Amputation, Traumatic surgery, Esthetics, Hand Strength, Humans, Nails injuries, Nails surgery, Plastic Surgery Procedures, Recovery of Function, Replantation, Surgical Flaps, Finger Injuries physiopathology, Finger Injuries therapy
- Abstract
Hands are used to interpret and shape the environment. The highly specialized structures of the fingertip enable tasks requiring precision, strength and endurance. Therefore injuries on fingertips have an effect to the entire hand. Thorough study of medical history and clinical examination are required to determine the correct treatment. The goal is to restore the function of the fingertip as well as possible. A good fingertip is pain free, has adequate sensation and is stable. As well as being aesthetically important, the nail adds to the stability and precision of the distal fingertip. Therefore, the structures of the nail should be repaired when possible. Different treatment options of the fingertip injuries range from conservative to operative, including flaps from adjacent areas. In selected cases, reattachment of an amputated fingertip yields best results.
- Published
- 2012
14. Long-term results of finger reconstruction with microvascular toe transfers after trauma.
- Author
-
Kotkansalo T, Vilkki S, and Elo P
- Subjects
- Activities of Daily Living, Adolescent, Adult, Amputation, Traumatic complications, Child, Child, Preschool, Female, Finger Injuries etiology, Fingers surgery, Hand Strength, Humans, Male, Microvessels, Middle Aged, Patient Satisfaction, Recovery of Function, Toes blood supply, Young Adult, Amputation, Traumatic surgery, Finger Injuries surgery, Plastic Surgery Procedures, Toes transplantation, Transplantation
- Abstract
Amputation of all or most of the fingers severely disturbs the gripping function of the hand. The purpose of this study was to evaluate the long-term functional results of finger-amputation patients rehabilitated with microvascular toe transfers. Fifteen such patients (10 males, median age at injury 26 years (range 5-49 years)) were examined after a median follow-up of 18 years. Eight patients had no fingers spared by the initial trauma and the rest had at least two fingers amputated. The function of the hand was accessed subjectively (questionnaires) and objectively (tests). Further, physical parameters were measured and compared to the other healthy hand. Patients scored consistently well in the test measuring function (the Sollerman hand function test and the modified Tamai score). Activities of daily living presented on average minor difficulties. Patients regained on average 42% of grip and 84% of key pinch strength compared to the other hand. The average movement of the transfer was 28°. One transfer was lost due to inability to restore permanent circulation. In addition, there were one donor and one recipient site superficial infections. We conclude that microvascular toe transfer is a reliable way to improve gripping function after amputation of fingers. Patient approval is generally good and the achieved function satisfactory. Two toe transfers should be considered for patients with no fingers left. Work-related injury may be related to decreased occupational capability., (Copyright © 2011 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2011
- Full Text
- View/download PDF
15. Long-term functional results of microvascular toe-to-thumb reconstruction.
- Author
-
Kotkansalo T, Vilkki S, Elo P, and Luukkaala T
- Subjects
- Adolescent, Adult, Amputation, Surgical, Child, Child, Preschool, Follow-Up Studies, Hand Strength, Humans, Middle Aged, Patient Satisfaction, Recovery of Function, Thumb blood supply, Time Factors, Toes blood supply, Treatment Outcome, Young Adult, Amputation, Traumatic surgery, Microsurgery, Thumb injuries, Thumb surgery, Toes transplantation
- Abstract
The purpose of this study was to evaluate the long-term functional results of microvascular toe-to-thumb reconstruction after trauma. Forty-one patients meeting the inclusion criteria were available for a clinical follow-up study. The function of the hand was assessed with questionnaires as well as with modified Tamai and Sollerman hand function tests. According to the questionnaires, most activities were considered easy or quite easy and the majority of the patients (36/41) managed with no or minor complaints. Clinical tests showed good recovery of function. Patient satisfaction was high. There were superficial infections in five hands and in six donor feet. In total, 16 late corrective operations were done to eight patients. Microvascular toe transfer is a good option for grip reconstruction after thumb amputation. The extent of the initial injury influences the achievable outcome, yet even a single toe transfer can restore adequate grip function.
- Published
- 2011
- Full Text
- View/download PDF
16. The functional results of post-traumatic metacarpal hand reconstruction with microvascular toe transfers.
- Author
-
Kotkansalo T, Vilkki SK, and Elo P
- Subjects
- Activities of Daily Living, Adolescent, Adult, Esthetics, Fingers blood supply, Fingers innervation, Follow-Up Studies, Hand Strength, Humans, Ilium transplantation, Male, Metacarpal Bones surgery, Microsurgery, Middle Aged, Osseointegration, Patient Satisfaction, Range of Motion, Articular, Retrospective Studies, Surgical Flaps, Toes blood supply, Toes innervation, Amputation, Traumatic surgery, Finger Injuries surgery, Fingers surgery, Metacarpal Bones injuries, Toes transplantation
- Abstract
The aim of this retrospective study was to evaluate the functional results of grip reconstruction after metacarpal amputation with microvascular toe transfer or transfers. The Sollerman hand function test and modified Tamai score were determined. Additionally, secondary objective outcomes were measured. As subjective outcomes, the patients were asked about pain, satisfaction, sensibility and activities of daily living (ADL). Complications and secondary operations were also recorded. An average of 12 years 5 months (range 11-270 months) follow-up of 8 patients (11 transfers) is presented. Sollerman hand function test averaged 54, range 36-73. The modified Tamai score averaged 63, range 54-70. All except one patient were either satisfied or highly satisfied. Patients' perception of function in terms of ADL was generally good (average 26 out of 44) with many activities causing no difficulty or only slight difficulty. The study showed that it is possible to reconstruct a reasonable grip using microvascular toe transfers.
- Published
- 2009
- Full Text
- View/download PDF
17. Present technique and long-term results of toe-to-antebrachial stump transplantation.
- Author
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Vilkki SK and Kotkansalo T
- Subjects
- Activities of Daily Living, Adolescent, Adult, Amputation Stumps physiopathology, Amputation, Traumatic physiopathology, Amputation, Traumatic rehabilitation, Female, Hand Injuries physiopathology, Hand Injuries rehabilitation, Humans, Male, Microsurgery methods, Patient Satisfaction, Postoperative Care methods, Postoperative Complications, Preoperative Care methods, Range of Motion, Articular physiology, Reoperation, Sensation physiology, Thumb surgery, Treatment Outcome, Wrist Injuries physiopathology, Wrist Injuries rehabilitation, Wrist Injuries surgery, Amputation Stumps surgery, Amputation, Traumatic surgery, Hand Injuries surgery, Toes transplantation
- Abstract
Complete hand amputation has been considered conventionally as an indication for the use of mechanical prosthetic devices in order to regain some hand like function. A microsurgical option to create a new pinching ability after wrist amputation has been used in a series of 13 patients. The actual operation technique is presented in detail. It was designed by the senior author in 1981 and applied into clinical use in 1983. In order to evaluate the functional results and patient satisfaction in long-term, a questionnaire was sent to 12 patients and 11 patients were interviewed, examined clinically and studied with a hand function scoring test according Sollerman. The operated series consist of 12 adults with posttraumatic distal antebrachial or wrist amputations and 1 adolescent boy with a congenital wrist level amputation. There were 3 females and 10 males in the series. The satisfaction to achieved result was generally good. The ADL section of Tamai score and the one we used correlated well with each other and patient satisfaction. Sollerman hand function test gave worse results in two blind patients and same occurred in two short antebrachial stump patients. However the satisfaction was much better in Tamai score among blind patients, with wrist amputation level amputations. In our opinion this single toe transfer method gives an acceptable pinch reconstruction for hand amputation patients. We measured pinch strength and total active motion. They averaged about half of the normal values. The reconstruction is suitable to the patients, who are not willing to donate multiple toes or who are aware and concerned about the risks of human hand transplantation, which necessarily will need a life-long immunosuppressive medication to prevent from rejection.
- Published
- 2007
- Full Text
- View/download PDF
18. Cysteine proteinase inhibitor cystatin A in breast cancer.
- Author
-
Kuopio T, Kankaanranta A, Jalava P, Kronqvist P, Kotkansalo T, Weber E, and Collan Y
- Subjects
- Adenocarcinoma, Mucinous chemistry, Adenocarcinoma, Mucinous enzymology, Adenocarcinoma, Mucinous mortality, Aged, Breast Neoplasms enzymology, Breast Neoplasms mortality, Breast Neoplasms pathology, Carcinoma, Ductal, Breast enzymology, Carcinoma, Ductal, Breast mortality, Carcinoma, Lobular chemistry, Carcinoma, Lobular enzymology, Carcinoma, Lobular mortality, Carcinoma, Squamous Cell chemistry, Carcinoma, Squamous Cell enzymology, Carcinoma, Squamous Cell mortality, Cystatins physiology, Disease Progression, Female, Humans, Immunoenzyme Techniques, Lymphatic Metastasis, Middle Aged, Neoplasm Proteins physiology, Paraffin Embedding, Prognosis, Retrospective Studies, Risk, Tumor Suppressor Protein p53 analysis, Breast Neoplasms chemistry, Carcinoma, Ductal, Breast chemistry, Cystatins analysis, Neoplasm Proteins analysis
- Abstract
Cystatin A (acid cysteine proteinase inhibitor; ACPI) is a natural inhibitor of cysteine proteinases. It has been suggested that an inverse correlation exists between cystatin A and malignant progression. We wanted to assess the biological and clinical significance of cystatin A in infiltrative breast carcinoma by immunohistochemical staining. Formalin-fixed paraffin-embedded material from 440 cases treated during the years 1988-1991 was used in the study. After exclusion of patients with disseminated disease at diagnosis, previous contralateral breast carcinoma, and absence of follow-up data, 384 patients could be included in the survival analysis. For immunohistochemical analysis of cystatin A, we used monoclonal cystatin A antibody WR-23/2/3/3, the binding of which was detected by the avidin-biotin-peroxidase method. Immunohistochemical analysis of Bcl-2 and p53 was also done, and mitotic activity was evaluated. Positive staining for cystatin A was found in 52 of 440 cases. The staining was irregular but showed irrefutably positive areas within neoplastic tissue. Most of the positive tumors were of the ductal infiltrative type, but two were mucinous carcinomas, one medullary and one squamous cell carcinoma. No lobular carcinomas showed positive staining. Focal cystatin A positivity was seen in myoepithelial cells of benign ducts. Occasional apoptotic bodies within the neoplasm showed strong positivity for cystatin A. Tumors positive for cystatin A were of larger size and had higher mitotic activity than cystatin A-negative tumors. Cystatin A was associated with negative Bcl-2 staining, but there was no statistically significant association between axillary lymph node status or p53 immunostaining. The risk for breast cancer-related death was significantly higher in patients with cystatin A-positive tumors than in those with cystatin A-negative ones. The risk increase was significant also in lymph node-negative patients. After adjusting for the effect of tumor size, histological grade, and lymph node status, cystatin A-positive patients still had a higher risk of death. Patients with cystatin A and p53 coexpression had a higher risk of death than the other patients. The findings reveal a new variant of aggressive breast cancer. This type of carcinoma may develop during tumor progression through genetic instability that allows cystatin A expression and gives growth advantage to a clone of tumor cells.
- Published
- 1998
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