No abstract available.
Anterior Cruciate Ligament*

No abstract available.

No abstract available.

BACKGROUND: Pemphigus are chronic autoimmune blistering disorcers characterized by acantholysis. In addition to pemphigus vulgaris(PV), the major clinical variarts are pemphigus foliaceus(PF), paraneoplastic pemphigus(PNP) and drug-induced pemphigus(DP). Detection of pemphigus antigen is important for differential diagnosis as well as research work. Most investigators have identified pemphigus antigens by means of immunoprecipitation using metabolically radiolabeled cultured keratinocytes. However, immunorepitation is generally more expensive, hazardous and time-consuming than immunoblotting. Therefore, establishment of the immunoblotting as a standard technique for the detection of the pemphig us antigens is desirable. OBJECTIVE: To characterized pemphigus antigens by an immunobloting analysis of human epidermal extract and by indirect itnmunofluroscence study using human of cultured keratinocytes as a substraie. METHOD: We performed imrnunoblotting analysis af sera from patieiits with PV, PF, PNP and DP with human epidermal extract as a source of antigen. Indirect immunof uorescence study was also performed using human keratinocytes cultured in high or low calcium media for detection of pemphigus antigens. RESULTS: In an immunoblotting analysis, all(9/9) PV sera showed secific reactivities with a 130-KD protein and all(5/5) FF sera showed reactivities with a 150-KK protein, which is most likely desmoglein 1. Furthermore, one of nine PV serum also reacted with a 150-KD protein, which seems to be the identical antigen detected in PF. All PNP(3/3) sera showed reactivities with two protein bands, 210KD and 190KD. In our indirect imrnunofluorescence study using culltured human keratinocytes as a substrate, when keratinocytes were grown in low calcium media, no pimphigus antigens could be detected. However, when grown in high calciurn media, pemphigus vulga ris and paraneoplastic pernphigus antigens were present t the cell-cell contact areas with a puncta;e pattern, whereas pemphigus foliaceus antigen was not, presint in keratinocytes even when cultured in high calcium media. CONCLUSION: Our results suggests (1) immunoblotting analysis is a reliable technique for defining pemphigus antigen and could be a valuable tool for the differentiation of PV, PF and PNP and(2) PF antigen rnay not be expresseden cultured keratinocytes.
Acantholysis ; Blister ; Calcium ; Desmoglein 1 ; Diagnosis, Differential ; Fluorescent Antibody Technique, Indirect* ; Humans ; Immunoblotting ; Immunoprecipitation ; Keratinocytes* ; Pemphigus* ; Research Personnel

No abstract available.
Cytomegalovirus Infections* ; Cytomegalovirus*

Endoscopic ACL reconstruction using bone-patellar tendon-bone has been considered the gold standard in the field of reconstructive ACL surgery. Technically, graft must be placed at isometric point. But it is difficult to evaluate the placement of graft postoperatively. The purpose of this study is to determine the radiological ideal position of graft by comparing postoperative results with the graft placement. Seventy cases of endoscopic ACL reconstruction were reviewed and classified according to the femoral and tibial graft position on radiologic imaging. The femoral graft position was classified in relation to angle of graft on anterior position view and distance from posterior margin of graft to the inner surface of posterior cortex on lateral view. The tibial graft position was classified in relation to intercondylar eminence on anterior posterior view and lateral view. Knee score (modified Marshall, Lysholum), manual anterior instability test (Lachman test, Pivot shift test) and arthrometer measurement were checked to evaluate postoperative results in each case. The results of this study implicate that knee joint in which femoral graft was oriented at direction of 11 o clock centring around 68 degree respect to tibial joint and placed within 3mm from posterior cortex showed higher knee score and lesser laxity. In cases of tibial side, the graft oriented to intercondylar eminence (AP view) and placed anterior to intercondylar eminence (lateral view) showed higher knee score and lesser laxity.
Joints ; Knee ; Knee Joint ; Patellar Ligament* ; Transplants

PURPOSE: In order to know the clinical usefulness of the Bioscrew(Linvatec, USA) and the Semi-Fix (Arthrex, USA) technique for femoral fixation in ACL reconstruction using hamstring double loops, we scrutinized and compared the 24 knees. Materials and Methods: We compared Lysholm score, Hospital for Special Surgery(HSS) knee rating scores, Lachman tests, Pivot-Shift tests and KT side to side difference in 24 knees after arthroscopic ACL reconstruction using hamstring double loops from August 1996 to January 1998. We have used fourteen bio-absorbable interference screws and ten Semi-fixs for femoral tunnel fixation. RESULTS: We took the data; the Lysholm score of 96.1 and 94.1; HSS score of 98.6 and 98.1; KT differ- ence of 1.3 +- 2.13(mm) and 1.2 +- 1.89(mm) after ACL reconstruction using Bioscrew or Semi-Fix respec- tively. Femoral tunnel enlargement showed 2.51 +- 1.03(mm) and 1.95 +- 2.33(mm) respectively. And we got the similar results of Pivot-shift test, Lachman test and anterior drawer test after reconstructive surgery. CONCLUSION: Since we got the similar good data in comparative clinical study between the Bioscrews and the Semi-Fix technique, we anticipatd that either the use of Semi-fix technique or the biodegradable interference screws would be bright in the fixation to femoral tunnel in ACL reconstruction using ham- string double loops.
Femur* ; Knee

No abstract available.
Patellar Dislocation*

The methods of treatment of discoid meniscus have been in controversy and there are so many reports which represent different results. We analyzed the results of the 91 knees with discoid menisci of 84 patients who had been treated with arthroscopic partial or total meniscectomy, open partial or total meniscectomy, semi-arthroscopic total menisceetomy form June 1982 to Dec. 1987. The puropse of this paper is to present the indication and prognosis of the each method of treatment. There were 45 cases of male, 46 cases of female, and 10 patients were affected both knee. 2 patients who had served arthroscopic partial meniscectomy were reoperated by arthroscopic total meniscectomy due to recurrence of symptom. We classified the types of tear into 7 classes and observed the clinical characteristics and results. The methods we applied were arthroscopic total meniscectomy 40 cases, semi-arthroscopic total meniscectomy 25 cases, arthroscipic partial meniscectomy 16 cases, open partial meniscectomy 3 cases, open total meniscectomy 2 cases, and conservative treatment after arthroscopic diagnosis 5 cases. The follow up cases were 56, and period of follow up was ranged form 11 months to 5 years and 4 months (av. 2 years and 8 months). The results were followings : l. 71.4% of the patients were placed between 11 years and 30 years old, and there was no sexual difference. 2. 11.9% of the patients were affected bilaterally. 3. The commonest clinical symptom and physical sign was clik (67%) and quadriceps muscle atrophy (48.4%) 4. Diagnostic accuracy of knee arthrogram was 88%, but it could not demonstrate the type of tear. In arthrographic finding, the older the patient, the thinner the meniscus was. 5. The commonest type of tear was type V(34.1%) and it was followed by type II (19.8%). 6. There was no difference between the long term results of arthroscopic and semi-arthroscopic total meniscectomy. 7. The results of total meniscectomy is better than partial meniscectomy.8. The method of treatment should be chosen according to the type of terar, so partial meniscectorny is recommended for type II, IV and total meniscictomy is recommended for type III, IV, V and VI. 9. Less hospitalization, earlier recovery, and better result were obtained by the arthroscopic or semi-arthroscopic total meniscectomy.
Atrophy ; Clinical Study ; Diagnosis ; Female ; Follow-Up Studies ; Hospitalization ; Humans ; Knee ; Male ; Methods ; Prognosis ; Quadriceps Muscle ; Recurrence ; Tears

Chymopapain and collagenase are well known chemonucleolytic agents for lumbar disc herniation. However, these enzymes have serious problems occasionally, such as severe neurotoxicity or anaphylaxis even fatal to patients. Chondroitinase ABC, a metabolic product of Proteus vulgaris, has a specific action on the proteoglycans of the nucleus pulposus, but rarely no effect on the intrathecal nerve tissues of vessels. Seventy eight rabbit lumbar discs were evaluated radiographically and histologically after injection of chondroitinase ABC 40U/ml per disc and compared with buffer injected group and nonigected control group. There was considerable disc space narrowing of the chondroitinase ABC injected group which was verified radiographically and histologically(p < 0.01). A zone of Safranin 0 depletion was present in the ventral anulus fibrosus adjacent to the nucleus pulposus in all treated discs, indicating proteoglycan loss. On electron microscopic findings there were collapse of chondrocytes and notochordal cells. All of these findings are corresponding to the evidence that chondroitinase ABC may be another chemonucleolytic agent by decreasing disc volume and thereby decompressing spinal cord or nerve roots. All histologic effects of chondroitinase ABC were confined to intervertebral disc tissues. Chondroitinase ABC deserves to be a study object for the alternative of chemonucleolysis.
Anaphylaxis ; Chondrocytes ; Chondroitin ABC Lyase ; Chymopapain ; Collagenases ; Humans ; Intervertebral Disc ; Intervertebral Disc Chemolysis ; Nerve Tissue ; Notochord ; Proteoglycans ; Proteus vulgaris ; Spinal Cord