ABSTRACT
To determine which HLA antigens are associated with rheumatoid arthritis in Korean, we studied the HLA class II genotypes in 40 patients with rheumatoid arthritis and 35 normal healthy persons by the two step polymerase chain reaction. At first we designed 20 pairs of group specific primers followed by the alleles which have the same nucleotide sequences in the exon 2 region. We performed amplification reaction with these 20 pairs of primers for 32 cycles. Reaction products were electrophoresed and only specifically amplified products were reamplified for 15 cycles with total 76 pairs of allele specific primers. We typed the HLA class II genotypes with specific band patterns of each allele. The genotypes in patients were compared with those of normals. HLA-DR4 gave the highest relative risk for rheumatoid arthritis (RR=4), which was statistically significant (P0.05). Among HLA-DR4 subtypes, the frequency of Dwl4(0404) in patient group was relatively higher (19.2%) than that in normal control group(7.7%). The relative risk was high (2.85), although it was not statistically significant (P>0.05). From this study, HLA-DR4 was found to be highly associated while DRI was not associated with rheumatoid arthritis patients in Koreans.
Subject(s)
Humans , Alleles , Arthritis, Rheumatoid , Base Sequence , Exons , Genotype , HLA Antigens , HLA-DR4 Antigen , Polymerase Chain ReactionABSTRACT
Supracondylar fracture of femur is not well suited to internal fixation. A wide canal, thin cortex, comminution and compound wound make open reduction difficult. And the associated injuries, such as popliteal artery rupture are not infrequent. Some authors reported the favorable results with open reduction and rigid internal fixation. But still we have had failure cases with loosening or breakage of plate and screws, infection, post-operative joint stiffness and non-union etc. The present paper reports the result of surgically treated supracondylar fracture. From March 1982 to February 1989 25 patients who were treaed at Department of Orthopedic Surgery, St. Vincent Hospital were analysed. The results obtained as follows:l. Age distribution was between 29 and 74 years of age, and the ratio between males and females was 1.8:1. The most common of injury was traffic accident. 2. According to Neer's classification, there were 5 patients of type I, 7 patients of type II
Subject(s)
Female , Humans , Male , Accidents, Traffic , Age Distribution , Amputation, Surgical , Classification , Clinical Study , Femur , Fractures, Open , Joints , Knee , Leg , Orthopedics , Osteoarthritis , Patella , Popliteal Artery , Rupture , Tibia , Wounds and InjuriesABSTRACT
Dislocation of both ends of a clavicle in a 49-yesr-old man during an auto-accident is presented. The medial end of the right clavicle was severely displaced antero-inferiorly while the 1ateral end displaced posteriorly. And the clavicle was rotated along its long axis. Sever al attempts of manual and a surgical reduction through separate incision on both ends of the clavicle failed to have anatomical reduction. It was presumed that the cause of failure in reduction were delayed reduction due to combined chest injury, blockade by first rib that was broken and was anteriorly displaced as well as the complexity of the dislocation. It is speculsted that anatomic reduction in this rare injury require wider surgical exposure. Though authors failed to have anatomic reduction in present case, stabilization of the medial end of the clavicle with a strip of fascia lata after medial clavicular resection and ligament repair at the lateral end resulted in satisfactory regain of shoulder motion and cosmetic improvement.