Biomedical subjects

K U Jensen

Publications and source records attributed to K U Jensen.

6 recordsLinked to original sources

PubMed1992

Synovitis and artificial ligaments.

Sixty anterior cruciate Dacron prosthetic ligaments were placed arthroscopically in 57 patients from 1983 to 1985. Fifty-five of the 57 patients were followed for an average of 4.4 years. The complication rate at 13 months was 29%; at 4.4 years, 43%. There were 34 reoperations. In 16 knees (28%) the prosthesis had to be removed due to abrasion and arthritis with rupture of the prosthesis. Thirteen knees had chronic synovitis and one knee had bacterial infection, all of which were managed with arthroscopic debridement. Four knees required removal of the extraarticular staple. Clinical testing in 42 knees with the Dacron prosthesis still in place showed the Lysholm score improved from a preoperative score of 43 points to a score of 82 points after 5 years. Of the knees, 58% had a pivot shift of 2(+)-3+: a trace pivot shift in 30%; a negative pivot shift in only 12%. The KT-1000 arthrometer verified those pivot shifts. The results of this study are discouraging. The procedure was complicated by a high reoperation rate, usually secondary to arthritis. The impression was that although stability of the knee was improved by use of an artificial anterior cruciate ligament, the end result of the therapeutic procedure was the development of an iatrogenic model of degenerative arthritis in the human knee.

Adult↗

PubMed1992

[Diagnostic arthroscopy and arthroscopic surgery of the upper ankle joint].

Arthroscopy of the ankle joint was limited to the anterior compartments for a long time. The key to the entire diagnostic and therapeutic arthroscopy procedure on the ankle joint was the distension of the joint space through modern distraction techniques. The distraction devices available make arthroscopic surgery of the ankle joint as effective as in other joints like the knee and shoulder. Distension of the joint space allows visualization of all compartments, including the posterior ankle. In the case of hidden cartilage pathology of the posterior talus, an osteotomy linked with hardware removal through a second operation can be avoided today. The indications for arthroscopy of the ankle are pain, swelling, instability, hemarthrosis and joint locking. Generally, arthroscopy of the ankle joint is performed utilizing three general portals: anterolateral, anteromedial and posterolateral. Arthroscopic standard equipment, including the small joint set, is sufficient to treat the major part of ankle pathology through the standard portals. Arthroscopic ankle joint debridement in degenerative arthritis, removal of osteophytes, elimination of loose bodies and the management of soft tissue and bony impingement are possible. A complete synovectomy can be performed, including the posterior compartments. The treatment of osteochondritis dissecans is facilitated through the transmalleolar approach in combination with the distraction device. Arthroscopic ankle arthrodesis is possible and induces less trauma because an arthrotomy can be avoided. In our opinion diagnostic arthroscopy and arthroscopic surgery of the ankle joint is a procedure of great benefit for the patients if the indications are strictly adherred to.

Ankle Injuries↗

PubMed1988

Arthroscopic synovectomy of the knee joint: indication, technique, and follow-up results.

Between 1981 and 1986, at the Orthopaedic Clinic of the University of Düsseldorf, arthroscopic synovectomy of the knee was performed on 59 joints in 56 patients. The follow-up examination covered 45 knee joints in 43 patients (18 female and 27 male patients). The follow-up results, taken at an average of 2.7 years after the arthroscopic synovectomy, have up to now been good and equal to those achieved using the conventional technique. In this experience, arthroscopic synovectomy is a surgical procedure that places less strain on the patient in the early postoperative healing period. An arthrotomy was no longer required in the hypertrophic synovial diseases treated during this time. Fibroarthrosis, not uncommon after conventional arthrotomy, did not occur. Only a few stab incisions were necessary to reach all--in particular the posterior--knee-joint cavities. Postoperative pain was markedly reduced from a preoperative level of 16.6 points (47%) (35 maximum points possible, or 100%) to a level of 29.5 points (84%) at follow-up. Patients who experienced an open synovectomy previously in the other knee now favor the arthroscopic procedure. The majority of the patients had a range of motion between 0 and 120 degrees within the first 2 weeks after surgery. Swelling disappeared from a preoperative score of 2.9 points (19%) (15 maximal points possible, or 100%) to 12.2 points (81%). Subjectively, 78% of the patients were satisfied with the result of arthroscopic synovectomy, 7% considered the procedure a partial success, and 15% were dissatisfied.

Adult↗

PubMedDate not supplied

[Correlation of roentgen findings, intensity of pain and subjectively experienced impairment in gonarthrosis].

At the Orthopedic Clinic of the Heinrich Heine University of Düsseldorf a clinical survey was carried out about patients with clinically obvious gonarthrosis. Wirth's rating was used to classify the x-ray state. The survey revealed the following correlations: Between the x-ray state according to Wirth and pain intensity measured by VAS scales exists a significant positive correlation (p < 0.001). Between the x-ray state according to Wirth and the individual clinical impairment measured by a modified LYSHOLM-SCORE exists a significant positive correlation (p < 0.001). The survey shows that the LYSHOLM-SCORE modified by Kloos does reveal the subjective impairment caused by gonarthrosis. The survey points out that on the one hand the subjective impairment at Wirth's x-ray state IV is higher than at state III, but that on the other hand the pain-score is higher at state III than at state IV.

Activities of Daily Living↗

PubMedDate not supplied

[Chronic pain syndromes in orthopedics--typical sites, follow-up and patient characteristics].

This epidemiological questionnaire--study about 362 patients suffering from chronic pain related to muscle skeletal disorders shows the following results: most muscle skeletal pain syndromes are located in the area of the head and back (57.5%), patients who want to be treated in an orthopedic pain ambulance, suffer from at least "moderate" pain according to the verbal rating scale and at least from pain equal or more than 50 according to the numeric rating scale, for most patients (51.9%) the duration of the pain has been between 1 and 10 years, about twice as many women (60.5%) than men (39.5%) suffer from chronic muscle skeletal pain, pain syndromes seem to be of more chronic duration in women than in men, and women tend to take pain killers more frequently than men, most patients with chronic pain consult 2 to 6 doctors, for typical orthopedic pain syndromes most patients consult an orthopedic doctor, patients suffering from chronic headache consult an orthopedic specialist about as frequently as an neurologist or internal specialist.

Adult↗

PubMedDate not supplied

[Arthroscopic surgical synovectomy of the knee joint (indications, technic, follow-up results)].

Between 1981 and 1986, synovectomy was performed arthroscopically at Düsseldorf University Orthopedic Clinic on 59 knee joints of 56 patients without opening the joint. Of these, 43 patients, i.e., 45 knee joints, were followed up on average 2.7 years postoperatively. In the author's experience arthroscopic-surgical synovectomy puts less strain on the patient. The risk of damaging cutaneous nerve branches is low, neuromuscular joint control is preserved, and no fibroarthrosis occurs. All the compartments of the knee joint - including, in particular, the posterior ones - are accessible from a few stab incisions. Since traumatization is minimal there is less postoperative pain than with the conventional method so that as a rule rehabilitation presents no problems, especially in the first six postoperative weeks. The indication threshold for arthroscopic synovectomy is lower than for conventional synovectomy, thus facilitating the decision to perform synovectomy early. In the event of recurrence the pathologic synovialis can once again be excised from the same approaches.

Adolescent↗