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Träfflista för sökning "hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Ortopedi) srt2:(1985-1989)"

Sökning: hsv:(MEDICIN OCH HÄLSOVETENSKAP) hsv:(Klinisk medicin) hsv:(Ortopedi) > (1985-1989)

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1.
  • Londos, Elisabet, et al. (författare)
  • Internal fixation of femoral neck fractures in Parkinson's disease. 32 patients followed for 2 years
  • 1989
  • Ingår i: Acta Orthopaedica Scandinavica. - : Medical Journals Sweden AB. - 0001-6470. ; 60:6, s. 682-685
  • Tidskriftsartikel (refereegranskat)abstract
    • 32 patients, suffering from Parkinson's disease, had internal fixation of femoral neck fractures. In 24 displaced fractures, 6 nonunions and 3 segmental collapses were seen; and in 8 undisplaced fractures, 1 case of segmental collapse was diagnosed. Healing complications were thus seen in one third. Total hip replacement for healing complication was performed in 3 of 32 patients. 9 patients died within 2 years. No difference in the rate of healing or mortality was detected compared with hip fracture patients without Parkinson's disease. Our study does not support primary arthroplasty for femoral neck fracture in patients with Parkinson's disease.
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2.
  • Aspenberg, P., et al. (författare)
  • Drug test chamber : a titanium implant for administration of biochemical agents to a standardized bone callus in situ
  • 1988
  • Ingår i: Journal of Biomedical Engineering. - : Elsevier BV. - 0141-5425. ; 10:1, s. 70-73
  • Tidskriftsartikel (refereegranskat)abstract
    • A titanium implant in which a conduit is gradually filled with ingrowing bone (the Bone Harvest Chamber) has been modified to allow continuous local treatment of the conduit tissue with biochemical agents. Implants were inserted bilaterally in rabbit tibiae. The tissue content of the bone ingrowth conduits was studied with histology, 99mTc-MDP scintimetry and measurements of total calcium content. Bone was formed in the conduit by endochondral formation starting at both ends and continuing until fusion in the middle. After 2 weeks the bone had not yet met in the middle where fibrous tissue was seen. In eight animals 3H-proline was applied via one of the chambers, with the contralateral chamber as a saline-treated control. The collagen of the harvested tissue from the 3H-proline treated side had a 3H-hydroxyproline content 1000 times greater than had the control side. The 'drug test chamber' makes possible the study of local effects of drugs on healing of mature bone in vivo.
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3.
  • Dahlin, L B, et al. (författare)
  • Mechanical effects of compression of peripheral nerves
  • 1986
  • Ingår i: Journal of Biomechanical Engineering. - 0148-0731. ; 108:2, s. 2-120
  • Tidskriftsartikel (refereegranskat)abstract
    • Effects of graded compression on nerve function were analyzed in order to evaluate the relative importance of pressure level and duration of compression for functional deterioration. The pressure was applied by means of a small inflatable cuff. The effects of two pressure levels, i.e., 80 mm Hg applied for 2 hr or 400 mm Hg applied for 15 min, were studied in rabbit tibial nerves. The lower pressure tested, which is known to induce ischemia of the compressed nerve segment, also causes some degree of mechanical deformation of the nerve trunk, which leads to incomplete recovery following pressure release. The duration of compression is of importance for the degree of nerve injury even at the higher pressure level tested.
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4.
  • Djerf, K, et al. (författare)
  • A simplified roentgen stereophotogrammetric method. Analysis of small movements between the prosthetic stem and the femur after total hip replacement.
  • 1987
  • Ingår i: Acta Radiologica. - : SAGE Publications. - 0284-1851 .- 1600-0455. ; 28:5, s. 603-606
  • Tidskriftsartikel (refereegranskat)abstract
    • A simplified roentgen stereophotogrammetric method is described. It is based on the use of a 50 mm thick reference plate consisting of a carbon-fibre-reinforced polyester box. The patient is placed directly on this box, which makes the methods less cumbersome and more suitable for routine use. The method has been tested in a model experiment designed for detecting small movements between femur and prosthesis at an early stage after total hip replacement. The head and two hemispheres on the prosthesis and three small tantalum balls inserted in the femur serve as reference points. The model experiment now reported shows that the method has acceptable precision.
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5.
  • Elmqvist, Lars-Gunnar, 1944- (författare)
  • Chronic anterior cruciate ligament tear : knee function and knee extensor muscle size, morphology and function before and after surgical reconstruction
  • 1988
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Knee function was evaluated by knee score, activity level, clinical findings and performance tests, muscle size by computerized tomography (CT), morphology by light (LM) and electron microscopy (EM), muscle function by electromyography (EMG) and isokinetic performance in 29 patients with chronic anterior cruciate ligament (ACL) tear. Preoperatively CT disclosed a significant mean atrophy of the quadriceps and nonsignificant changes of the other muscle areas of the injured leg. Morphology of m vastus lateralis of the injured leg was normal in more than half of the biopsies preoperatively, the rest showed signs of nonoptimal activation. Significant decreases in all isokinetic parameters were noticed together with significantly decreased EMG of the quadriceps muscle of the injured leg.Âfter surgical reconstruction the knees were immobilized in a cast for 6 weeks at either 30° or 70° of knee flexion. After cast removal CT showed significant decreases of all areas which also remained after training. The 30° group showed larger fibres (intracellular oedema) and more frequent morphological abnormalities than the 70° group. Fourteen weeks postoperatively the patients were allocated to either a combination of isometric and progressive resistance training or isokinetic training for 6 weeks. CT showed slightly larger areas at 20 weeks postoperatively than at 6 weeks. Morphological abnormalities were still prominent at 20 weeks postoperatively. Maximum isokinetic knee extensor mechanical output and endurance were markedly decreased at 14 weeks postoperatively but both improved progressively during the one year rehabilitation, mostly during the intensive 6 week training period but irrespective of training programme used. Fatiguability/endurance level improved over the preoperative level. Muscular work/integrated EMG was stable while EMG/t increased indicating neuromuscular relearning.The clinical result at 28 months foliowup was excellent or good in 93% of the patients and clinical stability improved in 66%. Independent upon primary knee immobilization angle or training programmes no differences could be demonstrated with respect to stability, range of motion, function or isokinetic mechanical output. Isokinetic performance was still significantly lower in the injured compared to the noninjured leg and not significantly different from the preoperative values. Morphology, only 6 cases, showed abnormalities similar to preoperative findings.In conclusion, the reason for the decreased maximum and total knee extensor performance in these patients with ACL tears is suggested to be nonoptimal activation of normal functioning muscle fibres depending on changes in knee joint receptor afferent inflow. No differences concerning the markedly improved postoperative clinical result could be seen between the different treatment modalities used. A nonoptimal muscular activation might explain the still decreased isokinetic performance present at followup.
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6.
  • Bauer, M, et al. (författare)
  • Ankle fractures
  • 1987
  • Ingår i: Foot and Ankle. - 0198-0211. ; 8:1, s. 23-25
  • Tidskriftsartikel (refereegranskat)abstract
    • The results of three separate studies on ankle fractures are presented. Clinical information is provided concerning the epidemiology and a comparison of closed versus open treatment, and a discussion is presented concerning what results can be expected 30 years after closed treatment for an ankle fracture.
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7.
  • Bauer, M, et al. (författare)
  • Supination-eversion fractures of the ankle joint: changes in incidence over 30 years
  • 1987
  • Ingår i: Foot and Ankle. - 0198-0211. ; 8:1, s. 26-28
  • Tidskriftsartikel (refereegranskat)abstract
    • The sex- and age-specific incidence has been calculated for ankle fractures from the first part of the 1950s and compared with the 1980s, a 30-year interval. The fractures were also classified according to Lauge-Hansen. Altogether 1784 fractures were found. During that time interval ankle fractures had become more common, particularly those with extensive skeletal involvement, such as the stage IV supination-eversion fractures, which today have an incidence pattern more typical of a fragility fracture in elderly women.
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8.
  • Bengner, Urban, et al. (författare)
  • Changes in incidence and prevalence of vertebral fractures during 30 years
  • 1988
  • Ingår i: Calcified Tissue International. - 1432-0827. ; 42:5, s. 293-296
  • Tidskriftsartikel (refereegranskat)abstract
    • The age and sex-specific incidence and prevalence of vertebral compression fractures were compared between the 1950s and 1980s in an urban population. In women over 80 years of age the incidence of symptomatic vertebral fractures has increased approximately four times; in elderly men even more. Mainly, low-energy trauma has caused these fractures. Thus, one clinical manifestation of osteoporosis--vertebral fracture--has increased in number, incidence, and prevalence over the last 30 years.
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9.
  • Bengnér, Urban, et al. (författare)
  • Epidemiology of ankle fracture 1950 and 1980. Increasing incidence in elderly women
  • 1986
  • Ingår i: Acta Orthopaedica Scandinavica. - : Medical Journals Sweden AB. - 0001-6470. ; 57:1, s. 35-37
  • Tidskriftsartikel (refereegranskat)abstract
    • During 1980-82, 739 ankle fractures occurred in Malmo. These were compared with 383 ankle fractures occurring in 1950-52. In men there was an increase in the age-specific incidence up to the age of 60, especially in fractures of the lateral malleolus. In women there was an increase in the age-specific incidence above the age of 50, both in lateral malleolar fractures and, even more pronounced, in bi- and tri- malleolar fractures.
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10.
  • Bengnér, Urban, et al. (författare)
  • Increasing incidence of tibia condyle and patella fractures
  • 1986
  • Ingår i: Acta Orthopaedica Scandinavica. - : Medical Journals Sweden AB. - 0001-6470. ; 57:4, s. 334-336
  • Tidskriftsartikel (refereegranskat)abstract
    • The age and sex specific incidence of tibial condyle fractures and patellar fractures were compared between 1950-55 and 1980-83 in the urban population of Malmo. In elderly women there was an increased incidence over these 30 years for both fracture types.
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