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Biomedical subjects

A B Nielsen

Publications and source records attributed to A B Nielsen.

At least 19 recordsLinked to original sources
PubMed2001

["Footballer's ankle". Results of arthroscopic treatment of anterior talocrural "impingement"].

INTRODUCTION: Footballer's ankle may be caused by anterior talocrural impingement of exostosis. The aim of this study was to evaluate the outcome of arthroscopic resection of exostosis, which was performed in our department. MATERIAL AND METHODS: We reviewed 17 consecutive cases of arthroscopic surgery for the bony impingement. The patients were 17 men, with an average age of 34 years. All reported pain and limited dorsiflexion in the talocrural joint. Resection of exostosis at the distal range of tibia and partial synovectomy were performed in all cases. The postoperative range of movement was evaluated after an average of eight weeks. To complete the material, we conducted a telephone interview concerning pain and return to sports. RESULTS: Dorsiflexion had objectively improved in 59%. Seventy per cent reported less pain in the ankle after surgery, whereas 59% of the patients returned to sports, 23% had given up, because of the symptoms. CONCLUSION: In cases where anterior talocrural impingement is the cause of the symptoms, arthroscopic resection of exostosis is a safe and reasonably effective treatment. The best effect was seen on pain, whereas only half of the patients had improved movement.

Adult↗
PubMed1998

Efficacy and safety of prolonged thromboprophylaxis with a low molecular weight heparin (dalteparin) after total hip arthroplasty--the Danish Prolonged Prophylaxis (DaPP) Study.

The aim of this study was to compare the efficacy and safety of prolonged (35 days) thromboprophylaxis with a standard length (7 days) regimen of a low molecular weight heparin in patients undergoing total hip arthroplasty. The study was multicentre, randomised, double-blind, and prospective with two groups. Following seven days on a standard length regimen of dalteparin (5000 antifactor Xa units subcutaneously once daily starting 12 h before surgery), patients were randomized to continue the prophylaxis with either subcutaneous injections of dalteparin or placebo injections for a further 28 days. Efficacy was evaluated at the end of the study (day 35) in all patients with bilateral ascending phlebography to detect deep vein thrombosis. Bleeding complications and other adverse events were registered throughout the study period. Three hundred consecutive patients agreed to participate before the operation: 281 were finally randomised and 215 completed the study; two patients died before randomisation; 17 developed deep vein thrombosis; none developed pulmonary embolism; and five of 113 patients (4.4%, 95% CI 1-10%) developed deep vein thrombosis in the dalteparin group, compared with 12 of 102 (11.8%; 95% CI 6-20%) in the placebo group (p=0.039). Deep vein thrombosis in the proximal veins was diagnosed in one patient (0.9%; 95% CI 0-5%) in the dalteparin group, and in five (5.0%; 95% CI 2-11%) in the placebo group (p=0.076). Major bleeding was observed in one patient in the placebo group; minor bleeding complications and adverse events were equally distributed between the groups. We concluded that prolonged (35 days) thrombo prophylaxis with dalteparin is more effective than a standard length (7 days) regimen without increased risk of bleeding complications or other adverse events.

Adult↗
PubMed1995

Volleyball injuries presenting in casualty: a prospective study.

During 1986, all sports injuries (n = 5222) were prospectively recorded at the two casualty departments in Arhus, Denmark. Volleyball injuries (n = 278) accounted for 5.3% of all sports injuries. An evaluation of the rehabilitation period and the consequences of the injuries was undertaken by questionnaire three years after the injury. The injury incidence was 1.9 injuries/1000 inhabitants/year. Hand, finger, and ankle sprains were the most frequent injuries. Female players had significantly more hand/finger injuries than male players, who incurred more ankle/foot injuries. Knee (6%) and ankle injuries (31%) were responsible for the longest duration of absence from sports participation. There were relatively few chronic injuries. The study suggests the need to enhance prophylactic measures with regard to blocking and overhand pass techniques, in order to reduce the number and extent of ankle and hand/finger injuries.

Adolescent↗
PubMed1993

[Consequences of arthroscopic meniscal resection].

The functional and radiological consequences of arthroscopic meniscal resection were assessed in an 8.5 years follow up of 136 patients. Twenty three percent had undergone re-arthroscopy. Function related pain in the operated knee was reported by 44% of the patients. Radiological degenerative changes appeared in significantly more of the operated knees than in the knees not operated. The combination of varus knees and resection of the medial meniscus or valgus knees and lateral resection was associated with significantly more degenerative changes than after resection in knees with normal alignment. Resection of flap tears was associated with more re-operations and more function related knee pain than resection of bucket-handle lesions.

Arthroscopy↗
PubMed1992

Arthroscopic partial meniscectomy: a long-term follow-up.

A follow-up study was conducted to clarify the clinical and radiological long-term consequences of arthroscopic meniscus resection. One hundred thirty-six patients who had unilateral arthroscopic resection of an isolated meniscal tear attended for an interview and a physical and radiological examination. Follow-up averaged 8.5 years, with a range of 7.9-11.6 years. The reoperation rate was as high as 22.8%, but was the lowest in the bucket handle tear group (13%). Pain after exercise was less frequent among patients treated for a bucket handle tear compared to other lesions. Fifty-three percent of the patients had at least one of the Fairbanks change in the operated knee and only 22% in the control knees. The radiographic result was not influenced by the type of meniscus lesion nor were high age or intraoperatively described cartilage damage factors of significance. Malalignment less than 4 degrees of valgus and greater than 10 degrees of valgus was found to be a significant risk factor for the development of degenerative changes following meniscus resection.

Adult↗
PubMed1991

Epidemiology of acute knee injuries: a prospective hospital investigation.

During a 1-year period, data on all acute injuries treated at emergency departments were entered into a registry; of these injuries, 6% involved the knee joint. The patients were followed until a definite diagnosis was established. The rate of anterior cruciate ligament injuries and meniscus tears was, respectively, 0.3 and 0.7 (injuries per 1,000 inhabitants per year). The rate of dislocations of the patellofemoral joints was equal to the rate of anterior cruciate ligament injuries. Ten percent of the cases involved ligament injuries, and isolated ruptures of the anterior cruciate ligaments were twice as common as combined lesions of this ligament. Injuries of both the collateral ligament and the meniscus represented 6% of the cases. In most age groups male patients predominated, but the frequency of anterior cruciate ligament injuries was similar in both sexes, while the frequency of collateral ligament injuries and meniscus tears varied according to both gender and age. Only 27% of the injuries were associated with sports activities, but they were found twice as often among athletes than people injured in nonathletic accidents. Ruptures of the collateral ligament and anterior cruciate ligament were four and seven times more common among athletes, respectively, while athletes sustained fewer meniscus tears than people involved in nonathletic activities. Half of the patients needed further care after primary treatment, and 18% were primarily (65%) or secondarily (35%) admitted to in-patient care. Operative treatment, including arthroscopic examination, was performed in 20% of cases.(ABSTRACT TRUNCATED AT 250 WORDS)

Acute Disease↗
PubMed1990

Sports injuries in adolescents' ball games: soccer, handball and basketball.

In a prospective study of 302 adolescent players in three ball games (soccer, handball and basketball), 119 incurred injuries. The injury incidence (number of injuries per 1000 playing hours) was 5.6 in soccer, 4.1 in handball and 3.0 in basketball. Ankle sprains accounted for 25 per cent of the injuries, finger sprains 32 per cent, strains in the thigh and leg 10 per cent, and tendinitis/apophysitis 12 per cent. The most serious injuries were four fractures, one anterior cruciate ligament rupture, and two meniscus lesions. The most serious injuries, with the longest rehabilitation period, occurred in soccer. In soccer, many injuries occurred during tackling and contact with an opposing player, while the injuries in handball and basketball were often caused by ball contact and running.

Adolescent↗
PubMed1990

Badminton injuries.

In a one year period, from 1 January 1986 to 31 December 1986, 4303 patients with sports injuries were treated at Aarhus Amtssygehus and Aarhus Kommunehospital. The mean age was 21.6 years (range 7-72 years) and 2830 were men. Two hundred and seventeen badminton injuries occurred in 208 patients (136 men) with a mean age of 29.6 years (range 7-57 years), constituting 4.1 percent of all sport injuries in Aarhus. Joints and ligaments were injured in 58.5 percent of the patients, most frequently located in the lower limb and significantly more often among patients younger than 30 years of age. Muscle injury occurred in 19.8 percent of the patients. This type of injury was significantly more frequent among patients older than 30 years of age. Most injuries were minor. However, 6.8 percent of the patients were hospitalized and 30.9 percent received additional treatment by a physician. As the risk of injury varies with age, attempts to plan training individually and to institute prophylactic measures should be made.

Adolescent↗
PubMed1988

An epidemiologic and traumatologic study of injuries in handball.

To identify the risk factors of injuries in handball, 221 players were followed during one indoor season. The injury incidence was 4.6/1000 playing hours and 11.4/1000 game hours. The upper extremity was involved in 41% of the injuries including 21% finger sprains. Ankle sprains were the most common injury (33%), and overuse injuries accounted for 18%. The risk of reinjury was 32%. Contact with opponent players during running or shooting caused 31% of the injuries. Errors during grasping the ball were the reason for most of the finger injuries. Forty percent of the injuries was treated by the players themselves. After the injury 73% were absent from handball for more than 1 week. Forty-one percent of the injured players had complaints 6 months after the end of the season. The study shows that injuries in handball are serious and cause extensive consequences for the players. In most of the injuries both intrinsic and extrinsic factors were involved, and prophylactic intervention in these cases demands changes in more fields.

Adolescent↗
PubMed1985

Methods of evaluation of the functional results of flexor tendon repair of the fingers.

The methods used by Buck-Gramcko, Kleinert and Tsuge in evaluating the functional results of flexor tendon repair were each applied to assess the functional outcome in sixty-seven fingers where both tendons had been severed in "no man's land". The method of Buck-Gramcko gave the highest rating, and the three methods showed evident differences in the results of evaluation after surgery. The study suggests a need for one standard method of measurement and recording, if a comparison of results after flexor tendon repair is to be of value. We found that the method of Buck-Gramcko incorporated the most essential features in the functional evaluation.

Fingers↗
PubMed1984

Displaced forearm fractures in children treated with AO plates.

Internal fixation with AO compression plates was carried out in 8 per cent of all children with displaced diaphyseal fractures of the forearm. Primary treatment for 23 of these 43 fractures consisted of primary fixation. All fractures healed in anatomical alignment. Deep infection was observed in 1 child. All fractures united but 1 refractured . Of 29 children, 27 were reexamined after a mean observation time of 5 years; 22 had obtained normal function of the arm, and nobody had restriction of rotation of the forearm exceeding 20 degrees. The mean overgrowth of the bones was 2.4 mm. Fifty-six per cent of the children had discrepancies in the linear growth between the radius and the ulna in the fractured arms. These disturbances had no influence on the functional results. We conclude that internal fixation with AO plates is preferable when closed reduction fails or when secondary displacement cannot be corrected by repeated gentle manipulation.

Adolescent↗
PubMed1984

Primary flexor tendon repair in "no man's land".

Fifty-eight patients with 67 fingers with flexor tendon injuries in Bunnell's "no man's land" treated with primary repair were re-examined 14-84 months after surgery. Thirty-five fingers had repair of both tendons, and in thirty-two fingers the superficialis tendon was excised and only the profundus tendon was repaired. Postoperatively thirty-one fingers were treated by Kleinert's rubber band traction, and in thirty-six fingers a dorsal plaster of Paris was applied. The functional end-result was evaluated according to the method of Buck-Gramcko. Seventy-four per cent of fingers with suture of both tendons and 47 per cent of fingers with suture of only the profundus tendon attained an excellent or good result. The fingers treated by Kleinert's rubber band traction achieved the most favourable functional result, but many inconstant factors had influence upon this evaluation. The number of re-operations were significantly higher after repair of only the profundus tendon.

Adolescent↗