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Öberg, Tommy
Publications (4 of 4) Show all publications
Öberg, T., Oberg, U., Sviden, G. & Persson, A. (2005). Functional capacity after hip arthroplasty: A comparison between evaluation with three standard instruments and a personal interview. Scandinavian Journal of Occupational Therapy, 12(1), 18-28.
Open this publication in new window or tab >>Functional capacity after hip arthroplasty: A comparison between evaluation with three standard instruments and a personal interview
2005 (English)In: Scandinavian Journal of Occupational Therapy, ISSN 1103-8128, E-ISSN 1651-2014, Vol. 12, no 1, 18-28 p.Article in journal (Refereed) Published
Abstract [en]

The aim of the present study was to compare the information obtained from three standard instruments used in physiotherapy and occupational therapy and with information acquired from an unstructured interview. Ten patients with osteoarthritis of the hip were consecutively picked from the waiting list at an orthopedic clinic. All were examined before and six months after arthroplasty. The study layout is a mixture of quantitative and qualitative evaluation. The three instruments used were SF-36 (self-reported health-related quality of life), FAS (an instrument for evaluation of lower extremity dysfunction), and the COPM (for evaluation of self-experienced activity level). All patients were also interviewed in a free, unstructured interview, and data were analyzed with a phenomenological approach. All methods could describe function and activity status of the patients very well, and they were also responsive to postoperative improvement. Together the three instruments gave such good information that almost no extra information was obtained through the interviews. On the other hand, the interviews served as powerful validation of the three instruments. The information in the three separate instruments is qualitatively different, and one instrument cannot replace another. They cannot be replaced by the interview either, because the instruments provide the therapist with specific and structured information that is important for further treatment planning and follow-up. © 2005 Taylor & Francis.

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-45470 (URN)10.1080/11038120510027153 (DOI)
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13
Johannesson, A., Larsson, G. & Öberg, T. (2004). From major amputation to prosthetic outcome: a prospective study of 190 patients in a defined population. Prosthetics and orthotics international, 28(1).
Open this publication in new window or tab >>From major amputation to prosthetic outcome: a prospective study of 190 patients in a defined population
2004 (English)In: Prosthetics and orthotics international, ISSN 0309-3646, E-ISSN 1746-1553, Vol. 28, no 1Article in journal (Refereed) Published
Abstract [en]

In this prospective study, the overall treatment and outcome of patients that underwent major lower limb amputation in a defined population is described. The study was performed over a five year period in the Health Care District of North-East Skane, Sweden. Some 190 patients, permanent inhabitants of the Health Care District, underwent major lower limb amputation. Sixteen (16) of these patients had amputations before the study started and went through late second leg amputation during the period. One hundred and seventy four (174) patients had primary major amputation. Seventy nine (79) were men and 95 were women, with a median age of 81. The re-amputation rate was 17% although the primary knee preservation ratio was as high as 3.0:1. Rigid dressing was the standard method following trans-tibial amputation and was used for 5-7 days. ICEROSS(R) silicone liner was used for compression therapy in 90% of all cases that resulted in delivery of a prosthesis. Prostheses were delivered to 43% of all patients with primary amputations. These patients spent a median of 13 days at the orthopaedic clinic, 55 days at the rehabilitation unit. Pressure casting was used as a standard method in the production of the prosthetic socket. ICEX(R) carbon-fibre socket was used in 52%. New procedures, treatments and techniques were introduced, standardised and evaluated whilst the routines in the hospital were reorganised. In this way, a system has been implemented that better guarantees the outcome of the whole procedure and the service received by this category of patients.

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-48287 (URN)
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12
Öberg, U. & Öberg, T. (2000). Functional outcome after high tibial osteotomy: A study using individual goal achievement as the primary outcome variable. Journal of rehabilitation research and development, 37(5), 501-510.
Open this publication in new window or tab >>Functional outcome after high tibial osteotomy: A study using individual goal achievement as the primary outcome variable
2000 (English)In: Journal of rehabilitation research and development, ISSN 0748-7711, E-ISSN 1938-1352, Vol. 37, no 5, 501-510 p.Article in journal (Refereed) Published
Abstract [en]

Functional outcome after high tibial osteotomy (HTO) was evaluated with respect to both improvement and goal achievement. Fifty-seven subjects, 32 men and 25 women, with a mean age of 55 years were examined with the Functional Assessment System (FAS) 6 and 12 months after surgery. The FAS is an evaluation system, specifically designed to monitor lower extremity dysfunction. It shows a profile with preoperative status, individual goal, and postoperative status. Statistically significant improvement was seen in 6/20 variables after 6 months, and in 10/20 variables after 12 months. When goal achievement was examined, the results were not as impressive. The treatment goal was not reached on the group level for almost all variables. On the individual level, only 20\N40% of the patients achieved the goal as a result of surgery in most variables. Exceptions were pain and leisure time/hobbies, where there was a high degree of goal achievement. It is possible that postoperative training was inadequate. The authors recommend a new randomized study, where patients who receive specific individual training related to the individual goal and functional profile are compared with a control group.

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-27972 (URN)12732 (Local ID)12732 (Archive number)12732 (OAI)
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2017-12-13
Öberg, T. (1992). Trapezius muscle fatigue and electromyographic frequency analysis. (Doctoral dissertation). Linköping: Linköpings universitet.
Open this publication in new window or tab >>Trapezius muscle fatigue and electromyographic frequency analysis
1992 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This study, comprising 6 separate articles, is concerned with different validity and reliability aspects of the electromyogram mean power frequency (MPF) as an estimator of localized musele fatigue in the trapezius muscle. A series of new, and partly controversial and problematic findings are reported.

There was a systematic variation of MPF that was not related to muscle fatigue, but to other factors such as shoulder joint angle, torque and external hand load, which can erroneously be interpreted as muscle fatigue; the largest variation, ±8%, was related to joint angle; movements of the surface electrodes was the most probable explanation of this variation and thus significantly influence the MPF estimates; there was an unacceptably large random variation of single MPF estimates; single estimates should not be used for normalization of MPF; there was no correlation between MPF and subjective muscle fatigue at low load level; MPF did not work as a valid estimator of localized muscle fatigue at low load level; load dose was not a suitable parameter to represent physical stimulus at the evaluation of subjective fatigue; the EMG response to fatigue seemed to be different in healthy muscle compared with diseased muscle in patients with unilateral work-related trapezius myalgia; the changes were more pronounced on the healthy side.

All these factors have to be considered if MPF is to be used as an estimator of localized muscle fatigue. Procedures are proposed to overcome some of these difficulties and reduce some of the variations such as a standard procedure for calibration, repeated measurements, regression procedures with calculation of trends insted of evaluation of single MPF estimate etc. There is a need for more research concerning the variation of MPF and procedures to handle this variation.

Place, publisher, year, edition, pages
Linköping: Linköpings universitet, 1992. 72 p.
Series
Linköping University Medical Dissertations, ISSN 0345-0082 ; 348
Keyword
EMG, Spectrum, Frequency, Fatigue, Trapezius, Myalgia
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-28094 (URN)12860 (Local ID)91-7870-638-6 (ISBN)12860 (Archive number)12860 (OAI)
Public defence
1992-02-07, Berzeliussalen, Medicinska fakulteten, Linköpings universitet, Linköping, 13:00 (Swedish)
Note
Papers, included in the Ph.D. thesis, are not registered and included in the posts from 1999 and backwards.Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2012-07-19Bibliographically approved
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