Suzanne Werner

Karolinska Institutet, Solna, Stockholm, Sweden

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Publications (51)136.7 Total impact

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    ABSTRACT: Background: Physical activity provides fundamental health benefits and plays a positive role in physical well-being. The aim of this present study was to investigate whether a 6-month physical activity program could influence physical self-esteem and frequency of physical activity in physically inactive female high school students in short- and long-term periods and whether personality traits were related to physical activity behaviour and compliance with the program. Methods: The study was a cluster-randomised controlled intervention study including 104 physically inactive female high school students aged 16-19 years, 60 females in an intervention group and 44 females in a control group. The intervention group exercised at sport centres at least once per week during a 6-month period. Questionnaires were used for evaluation. Results: At a 6-month follow up, the intervention group improved physical self-perception in all subdomains and significantly improved physical condition, physical self-worth and self-related health compared to the control group. At 1-year follow up, 25 females out of 53 females were still physically active, and all ratings remained almost the same as at the 6-month follow up. There were no particular personality traits that were dominant in the groups. Conclusion: A 6-month physical activity program can positively influence physical self-esteem and the frequency of physical activity, both from a short- and long-term perspective.
    No preview · Article · Aug 2015 · International journal of adolescent medicine and health
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    ABSTRACT: The aim of this study was to make a comparison between players in two age groups in an elite male soccer team regarding injury localisation within the muscle-tendon unit, injury size and muscle group in terms of muscle injuries of the lower extremity. Cohort study based on data collected from a Swedish elite male soccer team during the seasons 2007-2012. In total, 145 muscle injuries were included. Injury localisation to the tendon or muscle, the size of haematoma and the affected muscle group were assessed using ultrasound. Age comparison was made between younger players (≤23 years) and older players (>23 years). No difference regarding injury localisation to either the tendon or the muscle, or the size of haematoma between the two age groups was found. However, the older group of players suffered a significantly higher number of injuries to the triceps surae than the younger players (p = 0.012). In a Swedish team of male soccer players at elite level, there was no difference between players 23 years or younger and players older than 23 years, in terms of injury distribution to muscles or tendons. Players older than 23 years sustained more injuries to triceps surae when compared with players 23 years or younger. The clinical relevance is to pay attention to muscle function of triceps surae in older players and to screen those players who may need an injury prevention programme. LEVEL OF EVIDENCE: II.
    No preview · Article · Feb 2015 · Knee Surgery Sports Traumatology Arthroscopy
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    ABSTRACT: The purpose of this investigation was to examine whether the various types of motivation articulated in self-determination theory (SDT) mediated the relationship between basic need satisfaction (i.e. competence, autonomy, and relatedness) and athlete engagement. Four types of motivation as assessed by the Situational Motivation Scale including intrinsic motivation, identified regulation, external regulation, and amotivation were examined as mediators of the need satisfaction-engagement relationship. Swedish downhill skiers (N = 192; n = 95 males, n = 97 females) aged 15-20 years completed questionnaires assessing the study variables of interest. Mediation analyses revealed that all four motivational regulations were significant partial mediators of the relationship between autonomy support and engagement. Moreover, except for external regulation, all three motivational regulations fully mediated the association between relatedness and engagement. Finally, intrinsic motivation and identified regulation partially mediated the relationship between competence and engagement. Findings support SDT contentions highlighting the importance of self-determined forms of motivation in mediating need satisfaction and engagement. The mediation patterns and directions for future research are discussed.
    Full-text · Article · Jan 2015 · International Journal of Sport and Exercise Psychology
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    Maria Westin · Sandra Reeds-Lundqvist · Suzanne Werner
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    ABSTRACT: The aim of this study was to investigate whether a familiar correlation with anterior cruciate ligament (ACL) injury exists between competitive alpine skiers and their parents. All 593 (293 males, 300 females) elite alpine skiers who have studied at a Swedish alpine Ski High School during 2006 and 2012 answered a questionnaire whether they or their parents had suffered an ACL injury. A total of 418 skiers (70 %) answered the questionnaire. Twenty-nine per cent (n = 19) out of the 65 ACL-injured skiers reported that they had a parent (mother or father) who have had an ACL injury. In skiers without an ACL injury (n = 353), the result was 18 % (n = 64). An odds ratio of 1.95 (95 % confidence interval 1.04-3.65) was found to suffer an ACL injury if you have a parent who has had an ACL injury compared with if you have a parent without any ACL injury. The findings of the current study demonstrated a family history to tear the ACL between alpine skiers who had studied at a Swedish Ski High School and ACL injuries of their parents. LEVEL OF EVIDENCE: III.
    Full-text · Article · Apr 2014 · Knee Surgery Sports Traumatology Arthroscopy
  • Yvonne Kahlin · Suzanne Werner · Marie Alricsson
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    ABSTRACT: Physical activity and sport participation often decline during adolescence. To investigate if physical exercise during six months could lead to a positive behaviour of physical activity, improve physical fitness and self-related health in physically inactive female high school students. A prospective cluster-randomized controlled intervention study included 104 physically inactive female high school students, 60 in an intervention group and 44 controls. At baseline there were no group differences regarding self-related health. The intervention group exercised at least once per week. A questionnaire and physical fitness tests were used for evaluation, at baseline and 6 months later. The intervention group improved their self-related health compared to the controls (p=0.012). When divided into a regular (n=27) and an irregular training group (n=33) the regular training group improved their self-related health compared to the controls, while the irregular training group did not differ from the other groups. Maximal oxygen consumption was improved in the intervention group compared to the controls (p<0.001). No group differences were found in muscle strength and endurance. Physical exercise at least once per week during six months improved physical fitness (maximal oxygen consumption) and self-related health in physically inactive female high school students.
    No preview · Article · Oct 2013 · Journal of Physical Activity and Health
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    Annette Heijne · Maria Hagströmer · Suzanne Werner
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    ABSTRACT: The aim of the present study was to evaluate and compare objective and subjective outcome in patients 2 and 5 years after anterior cruciate ligament (ACL) reconstruction with either bone-patellar tendon-bone (BPTB) or hamstring grafts. The second aim was to report the prevalence of re- and contralateral ACL ruptures. Sixty-eight patients (BPTB, n = 34 and hamstring graft, n = 34) were evaluated preoperatively, 2 and 5 years after ACL reconstruction. Anterior knee laxity and rotational knee joint stability, muscle torque, hop length, anterior knee pain, activity level and self-reported knee function and quality of life were evaluated within and between groups. The prevalence of re- and contralateral ACL ruptures was also recorded. No significant difference in anterior knee laxity, rotational knee joint stability, hop length anterior knee pain or knee function and quality of life were noted at the 5-year follow-up. No significant differences in concentric or eccentric quadriceps torque at 90°/s and 230°/s were found at any of the follow-ups between and within grafts. A significant group difference in hamstring torque 1.05 (0.02) for BPTB and 0.89 (0.02) for hamstring grafts, and in hop length (leg symmetry index) follow-up 0.94 (0.07) for BPTB compared to 0.99 (0.07) for hamstring grafts (P = 0.002) was found at the 2 year follow-up in favour of the BPTB graft, but not at the 5 year follow-up. A significant improvement over time, irrespective of graft, was found in the KOOS's subscales Sport/Rec and quality of life (P < 0.001). None of the patients, irrespective of group, returned to their pre-injury level of sport (P < 0.05). Over the five postoperative years, one man and eight women (13 %) (hamstring graft, n = 5 and BPTB graft, n = 4), sustained a total of 11 (16.2 %) new ACL ruptures: seven (10.2 %) re-ruptures and four (5.9 %) ruptures of the contralateral ACL. At the 5-year follow-up, there were no significant differences in terms of anterior knee laxity, rotational knee joint stability, muscle torque, anterior knee pain, hop performance, quality of life or activity level between patients who had undergone reconstruction with BPTB or hamstring grafts. None of the patients, irrespective of group, had returned to their pre-injury level of activity. Eight out of the nine patients who had sustained a second ACL rupture were women. LEVEL OF EVIDENCE: II.
    Full-text · Article · Oct 2013 · Knee Surgery Sports Traumatology Arthroscopy
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    ABSTRACT: Abstract Aim: To explore the experiences of alpine skiing at the elite level after anterior cruciate ligament (ACL) injury and reconstruction. Design: A qualitative approach where semi-structured interviews were conducted, and an analysis of the manifest content was performed. Participants: Five ski high school students, two male and three female skiers, who had suffered ACL injuries and undergone ACL reconstructions. Results: Seven categories were identified. The participants described their perceived opportunities with regard to returning to alpine skiing after ACL injury and reconstruction as something positive to do with self-belief, being mentally and physically prepared, regaining confidence in their own ability, being given time and using active strategies. In contrast, perceived barriers to a return to elite alpine skiing gave rise to negative feelings, for example, fear, disheartenment, a total lack of or ambivalent confidence in their own ability and the use of passive strategies. Conclusion: The two male skiers returned to alpine skiing. They reported confidence in their own ability, active strategies and support on all levels, as well as enhanced physical ability. The female skiers did not return to their pre-injury level of competitive alpine skiing. They stated a lack of support on all levels, deterioration in their physical ability and two out of three reported passive strategies and no or ambivalent confidence in their own ability. The most important factors were family support, support on all levels, access to a physiotherapist and time given.
    No preview · Article · Jan 2013 · International journal of adolescent medicine and health
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    ABSTRACT: The aim of this article is to provide a state-of-the-art review for treatment of acute, total proximal hamstring tendon ruptures. For total proximal hamstring tendon ruptures, early (<2–3 w) surgical refixation minimizes muscle atrophy and facilitates a somewhat predictable time course for healing and rehabilitation. A postoperative rehabilitation program is detailed that has been used by one physical therapist for the past 7 years on over 200 patients with surgical repair for total proximal hamstring tendon rupture. One re-rupture has occurred, 7 months after surgery, following the rehabilitation program described herein. The rehabilitation program, including avoidance of postoperative bracing, appears effective for total proximal hamstring ruptures. Early surgery together with a specific rehabilitation program appears to be the treatment of choice for timely and safe return to sport and an active lifestyle. Level of evidence V.
    No preview · Article · Dec 2012 · Knee Surgery Sports Traumatology Arthroscopy
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    ABSTRACT: Purpose The aim of this prospective randomized intervention study was to evaluate the outcome at a 2 and 5 year follow-up whether combined arthroscopic surgery followed by exercise therapy was superior to the same exercise therapy alone when treating non-traumatic, degenerative medial meniscal tears. Methods Ninety-six middle-aged patients with MRI-verified degenerative medial meniscus tear and radiographic osteoarthritis grade ≤1 (Ahlbäck) participated in the study. Radiographic examination was done before randomization and after 5 years. The patients were randomly assigned to either arthroscopic treatment followed by exercise therapy for 2 months or to the same exercise therapy alone. At the start of the study and at the follow-ups at 24 and 60 months the patients answered three questionnaires KOOS, Lysholm Knee Scoring Scale and Tegner Activity Scale and made pain ratings on the Visual Analogue Scale (VAS). Results Both groups showed highly significant clinical improvements from baseline to the follow-ups at 24 and 60 months on all subscales of KOOS, Lysholm Knee Scoring Scale and VAS (p < 0.0001). No group differences were found at any of the testing occasions. One third of the patients that were treated with exercise therapy alone did not feel better after the treatment but were improved after arthroscopic surgery. According to radiographic findings two patients from each group had a slight progression of their osteoarthritis after 5 years. Conclusion The findings indicate that arthroscopic surgery followed by exercise therapy was not superior to the same exercise therapy alone for this type of patients. Consequently, exercise therapy can be recommended as initial treatment. However, one third of the patients from the exercise group still had disabling knee symptoms after exercise therapy but improved to the same level as the rest of the patients after arthroscopic surgery with partial meniscectomy. Level of evidence I.
    Full-text · Article · Mar 2012 · Knee Surgery Sports Traumatology Arthroscopy
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    Maria Westin · Marie Alricsson · Suzanne Werner
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    ABSTRACT: The aim of this study was to make a survey of injuries in young elite alpine skiers. During 5 years, all students at the Swedish Ski High schools were prospectively followed regarding injuries, time of exposure, injury location, type of injury, injury severity and gender. Four hundred and thirty-one skiers, 215 males and 216 females completed the entire study. Of 431 skiers, 193 (91 males, 102 females) sustained 312 injuries during the 5-year study period. The injury incidence for males was 1.62 injuries/1,000 ski hours or 2.97 injuries/100 months at a Ski High school, and the corresponding values for females were 1.77 and 3.25, respectively. Forty-one percent of the injuries involved the knee, 69% were ligament injuries, and 49% were classified as severe injuries. Of 190 injured skiers, 120 injured their left leg (P = 0.0097). This was their first time injury. The risk of sustaining a re-injury or a new injury increased the sooner the first time injury occurred (P = 0.001). There was a high risk for alpine ski students to sustain an injury during their education at the Swedish Ski High schools. Most injuries, especially ligament injuries, occurred in the knee joint in both males and females. Both genders were more likely to sustain injuries to the left than to the right leg. Nearly 50% of the injuries were classified as severe. II.
    Full-text · Article · Feb 2012 · Knee Surgery Sports Traumatology Arthroscopy
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    N Hjelm · S Werner · P Renstrom
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    ABSTRACT: The aim was to investigate injury risk factors in junior tennis players. Fifty-five players, 35 boys and 20 girls, answered a questionnaire about training habits, time of exposure, previous injuries and equipment factors. A battery of clinical tests and functional performance tests were also carried out. All tennis-related injuries that occurred during a 2-year period were identified and recorded. An injury was defined as an injury if it was impossible to participate in regular tennis training or playing matches during at least one occasion, a time loss injury. Potential injury risk factors were tested in a forward stepwise logistic regression model for injury. Thirty-nine players sustained totally 100 new and recurrent injuries. Injuries to the lower extremity were the most common ones (51%) followed by the upper extremity (24%) and the trunk (24%). Injured players performed more singles per week (P<0.0001) and played more tennis hours per year (P=0.016) than the uninjured players. Playing tennis more than 6 h/week was found to be a risk factor for back pain. A previous injury regardless of location was identified as an injury risk factor, and a previous injury to the back was a risk factor for back pain.
    Full-text · Article · Feb 2012 · Scandinavian Journal of Medicine and Science in Sports
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    ABSTRACT: The purpose of this article is to present recommendations for new muscle strength and hop performance criteria prior to a return to sports after anterior cruciate ligament (ACL) reconstruction. A search was made of relevant literature relating to muscle function, self-reported questionnaires on symptoms, function and knee-related quality of life, as well as the rate of re-injury, the rate of return to sports and the development of osteoarthritis after ACL reconstruction. The literature was reviewed and discussed by the European Board of Sports Rehabilitation in order to reach consensus on criteria for muscle strength and hop performance prior to a return to sports. The majority of athletes that sustain an (ACL) injury do not successfully return to their pre-injury sport, even though most athletes achieve what is considered to be acceptable muscle function. On self-reported questionnaires, the athletes report high ratings for fear of re-injury, low ratings for their knee function during sports and low ratings for their knee-related quality of life. The conclusion is that the muscle function tests that are commonly used are not demanding enough or not sensitive enough to identify differences between injured and non-injured sides. Recommendations for new criteria are given for the sports medicine community to consider, before allowing an athlete to return to sports after an ACL reconstruction.
    Full-text · Article · Sep 2011 · Knee Surgery Sports Traumatology Arthroscopy
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    Roland Thomeé · Suzanne Werner

    Full-text · Article · Sep 2011 · Knee Surgery Sports Traumatology Arthroscopy
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    ABSTRACT: The purposes of this study were to evaluate reliability of the Single-limb mini squat test (a dynamic measure of medio-lateral knee position) and the Quadriceps-angle (Q-angle) (a static measure of medio-lateral knee position), present paediatric reference values of the Q-angle, and evaluate the association between the tests. Two hundred and forty-six healthy children (9-16 years) were included (intra/inter-rater reliability for Q-angle (n = 37/85) and for Single-limb mini squat test (n = 33/28)). Dynamic medio-lateral knee position was assessed by the Single-limb mini squat test. Static medio-lateral knee position was evaluated by the Q-angle. The reliability of the Single-limb mini squat test was found to be moderate (kappa 0.48-0.57, 95% CI 0.16-0.85, 76-79% agreement). Fair to moderate reliability (ICC 0.35-0.42, 95% CI 0.11-0.66, SEM 1.4°-1.9°, n.s.) of the Q-angle measurements was found. Reference values for the Q-angle (mean 13.5° (1.9)-15.3° (2.8)) varies with age and gender. No associations were found between dynamic and static measures. The Single-limb mini squat test showed a moderate reliability and the Q-angle showed a fair to moderate reliability. A difference found for age and gender was lower than 5° and may not be clinical significant. No association were found between the two tests, indicating dynamic and static knee position being two different concepts. In a clinical perspective, we suggest that the Single-limb mini squat test is a contribution to the available tool box for evaluation of dynamic medio-lateral knee position in children, although the Q-angle may not be used before more research has been done justifying its use.
    No preview · Article · May 2011 · Knee Surgery Sports Traumatology Arthroscopy
  • Nina Hjelm · Suzanne Werner · Per Renstrom
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    ABSTRACT: The aim of this study was to prospectively make a survey of injuries in junior players from a Swedish local tennis club during a 2-year period in relation to gender, anatomic location, month of the year when injured, injury type and injury severity. All 12-18 years old members in a tennis club playing more than twice weekly were asked to participate. Fifty-five junior tennis players, 35 boys and 20 girls accepted to participate. All tennis-related injuries were prospectively registered and evaluated. Time of exposure for playing tennis was recorded. Thirty-nine players sustained 100 injuries, 73 in boys and 27 in girls. Injury incidence for boys was 1.7 injuries/1000 h of tennis playing time and for girls 0.6 injuries/1000 h. Ankle sprains, low back pain and knee injuries were the most common ones. Sixty-five percent were new injuries, and the majority of these injuries were located at the knee joint followed by the ankle joint, while most of the recurrent injuries were found in the lumbar spine. Boys suffered mainly from low back pain and ankle injuries and girls from low back pain and knee injuries. Forty-three percent of the injuries caused absence from tennis for more than 4 weeks and 31% more than 1 week.
    No preview · Article · Mar 2010 · Knee Surgery Sports Traumatology Arthroscopy
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    Annette Heijne · Suzanne Werner
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    ABSTRACT: Sixty-eight patients were clinically evaluated preoperatively, 3, 5, 7, 9 months, 1 and 2 years after ACL reconstruction, 34 with patellar tendon graft, 34 with hamstring graft. Outcome regarding graft choice and anterior knee laxity (P = 0.04) was in favour of patellar tendon graft. Hamstring graft led to a larger laxity, 2.4 mm compared with patellar tendon graft, 1.3 mm at 1 year and 2.5 mm and 1.5 mm, respectively, at 2 years (P = 0.05). There was a significant difference in rotational knee stability in favour of the patellar tendon graft at all test occasions but 9 months. A general effect regarding graft choice and muscle torque was found at 90 degrees/s for quadriceps (P = 0.03) and hamstrings (P < or = 0.0001) and at 230 degrees/s for hamstrings (P < or = 0.0001). No treatment effect regarding graft choice and one-leg hop test, postural sway or knee function was found. No group differences in anterior knee pain were found at any of the test occasions but 2 years in favour of hamstring graft compared to patellar tendon graft (P = 0.04). Patellar tendon graft resulted in higher activity level than hamstring graft at all test occasions but 1 year (P = 0.01). Patellar tendon ACL reconstruction led to more stable knees with less anterior knee laxity and less rotational instability than hamstring ACL reconstruction. Hamstring graft patients had not reached preoperative level in hamstring torque even 2 years after ACL reconstruction. Athletes with patellar tendon graft returned to sports earlier and at a higher level than those with hamstring graft.
    Full-text · Article · Oct 2009 · Knee Surgery Sports Traumatology Arthroscopy
  • Eva Möller · Lars Weidenhielm · Suzanne Werner
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    ABSTRACT: The aim of the present investigation was to study patient-reported long-term outcome after anterior cruciate ligament (ACL) reconstruction. On an average 11.5 years after ACL reconstruction with bone-patellar tendon-bone (BPTB) autograft 56 patients were asked to answer four different questionnaires about their knee function and knee-related quality of life. Another aim was to study whether there were any correlations between clinical tests, commonly used for evaluating patients with ACL injuries, which were performed 2 years after ACL reconstruction, and patient-reported outcome in terms of knee function and knee-related quality of life on an average 9.5 years later. All patients who had unilateral BPTB ACL reconstructions were examined at 2 years and on an average 11.5 years after surgery. At 2 years one-leg hop test for distance, isokinetic muscle torque measurement, sagittal knee laxity, Lysholm knee scoring scale and Tegner activity scale were used for clinical evaluation. At the follow-up on an average 9.5 years later the patients were evaluated with knee injury osteoarthritis outcome score (KOOS), short form health survey (SF 36), Lysholm knee scoring scale and Tegner activity scale. The SF-36 showed that the patients had a similar health condition as an age- and gender-matched normal population in Sweden on an average 11.5 years after ACL reconstruction. There was no correlation between the results of one-leg hop test for distance, isokinetic muscle torque measurement, sagittal knee laxity evaluated 2 years after surgery and the result of KOOS (function in sport and recreation, knee-related quality of life) and SF-36 evaluated on an average 11.5 years after surgery. We also compared patients that 2 years after surgery demonstrated a side-to-side difference in anterior-posterior knee laxity of more than 3 mm with those with 3 mm or less and found no significant group differences in terms of knee function as determined with KOOS. We found no correlation between the results of KOOS and SF-36 at the long-term follow-up and the time between injury and surgery, age at surgery or gender, respectively. We conclude that there is no correlation between patient-reported knee function in sport and recreation and knee-related quality of life on an average 11.5 years after BPTP ACL reconstruction and the evaluation methods used 2 years after surgery.
    No preview · Article · May 2009 · Knee Surgery Sports Traumatology Arthroscopy
  • Kristin Liljeros · Suzanne Werner · Per-Mats Janarv
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    ABSTRACT: A number of arthroscopic techniques have been introduced in the treatment of displaced anterior tibial spine fractures. Several of the procedures are technically demanding or include a second removal operation of metallic implants. The purpose of this study is to describe and evaluate an arthroscopic technique using bioabsorbable nails in displaced anterior tibial spine fractures. Case series; Level of evidence, 4. Sixteen consecutive patients, aged 7 to 15 years, with anterior tibial spine fractures type II and III according to Meyers and McKeever, were treated with arthroscopic fixation of the fragment using bioabsorbable nails. After 2 to 5 years, 13 of the patients were evaluated with regard to anterior knee laxity, range of motion, hop tests, Lysholm knee scoring scale, and activity level. Postoperative surgical complications were registered in the whole group of patients. One of the 13 patients had an increased anterior knee laxity of 3 mm. Extension deficits of 5 degrees were seen in 4 patients and flexion deficits of 5 degrees to 10 degrees in 3 patients. One patient had an outcome of <90% of the uninjured side in the hop tests. Eleven patients were excellent, 1 was good, and 1 was poor according to the Lysholm knee scoring scale. There was no influence on activity level. There were no inflammatory reactions and all fractures healed without complications. In 1 case, the arthroscopy was converted into an open procedure because of technical problems, still using the bioabsorbable nails. The outcome is comparable with other procedures. A second operation for removal of metallic implants is avoided.
    No preview · Article · Feb 2009 · The American Journal of Sports Medicine
  • Yvonne Kahlin · Suzanne Werner · Ulla Romild · Marie Alricsson
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    ABSTRACT: Physical activities during leisure time and school hours as well as nutritional habits have changed over the past years by adolescents being less physically active and adopting a sedentary life-style. The aim of the present study was to investigate possible differences between foreign and Swedish high school students in terms of self-related health, physical activity, overweight, and possible complaints from the musculoskeletal system. 1,090 high school students, 450 with foreign background and 640 with Swedish background, aged 16-26 years answered a questionnaire. A higher percentage of students with foreign background reported poor self-related health compared with students with Swedish background (p = .038). Students with a foreign background were to a greater extent less physically active than students of Swedish background (p = .003). No differences were found between the groups regarding musculoskeletal complaints. Students with foreign background were more often overweight than students with Swedish background and overweight was more frequent among males than females. Physical activity (moderate and high level) was concluded to be a factor with significant positive effect on self-related general health (moderate level p = .042, high level (p < .001), and musculoskeletal complaints were negative factors on self-related general health (p < .001). The results suggest that adolescents with foreign background should participate in physical activity to prevent overweight and thereby improve physical health.
    No preview · Article · Jan 2009 · International journal of adolescent medicine and health
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    A Heijne · B O Ang · S Werner
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    ABSTRACT: There is a lack of knowledge regarding predictive factors for a successful clinical outcome after an anterior cruciate ligament (ACL) reconstruction. The aim was to investigate pre-operative factors that may predict good outcomes as measured with the subscales Function in sports and recreation and Quality of life in Knee injury Osteoarthrithis Outcome Score (QOL-KOOS), one-leg hop test and Tegner Activity Scale 12 months after ACL reconstruction. Sixty-four patients, operated with either patellar or hamstring tendon graft, were included. Demographics, range of motion, anterior knee laxity, pivot shift, muscle-torques, anterior knee pain (AKP) and knee function were registered pre-operatively and used in a multiple regression model. Results show less degree of AKP and low influence on knee function to be the most important predictors for good outcome in Sport/Rec-KOOS (explained 31% of variances). Less AKP was in addition the most important predictor for QOL-KOOS (14%). Patellar-tendon graft, in favor of hamstring tendon graft, explained 8% of the improvement in the Tegner Activity Scale. In conclusion, a low degree of AKP was found to be the most important predictor for good clinical outcome 12 months after ACL reconstruction. Future studies, including psychological parameters, should use analyses that have the potential to control for independency between variables.
    Full-text · Article · Sep 2008 · Scandinavian Journal of Medicine and Science in Sports

Publication Stats

2k Citations
136.70 Total Impact Points

Institutions

  • 2000-2015
    • Karolinska Institutet
      • • Department of Molecular Medicine and Surgery
      • • Physiotherapy Division
      • • Department of Physical Therapy
      Solna, Stockholm, Sweden
  • 2006
    • Mid Sweden University
      • Department of Health Sciences
      Härnösand, Västernorrland, Sweden
  • 2005
    • Capio S:t Görans sjukhus
      Tukholma, Stockholm, Sweden
  • 2000-2003
    • Karolinska University Hospital
      Tukholma, Stockholm, Sweden