At Orthopedic Department of Kyung Hee University Hospital, we performed 20 total knee replacements in 12 patients who had rheumatoid arthritis and 18 total knee replacements in 13 patients who had osteoarthritis during the period from August 1982 to May 1986. All patients were female. Comparative analysis was done between the two groups with a follow-up period ranging from 1 year to 4 years 8 months, average being 2 years and 3 months. The average age of rheumatoid arthritis patients was 10 years younger than osteoarthritis patients. The improvement of range of knee motion after total knee replacement was greater in rheumatoid arthritis comparing to osteoarthritis. Preoperative flexion contracture was more severe in rheumatoid arthritis than osteoarthritis, but after total knee replacement the average degree of flexion conrcacture was no significant difference between two groups. The average of preoperative Hospital Surgery Knee Rating Scale was low in rheumatoid arthritis group than in osteoarthritis group, but postoperative Knee Rating Scale was similar in both groups. It seems that the problem of wound was more frequent in rheumatoid arthritis than in osteoarthritis.
Arthritis, Rheumatoid ; Arthroplasty, Replacement, Knee ; Contracture ; Female ; Follow-Up Studies ; Humans ; Knee ; Orthopedics ; Osteoarthritis ; Wounds and Injuries

Primary repair of anterior cruciate ligament is superior to late reconstruction procedures for two reasons; objective stability is more easily restored due to intact secondary restraints not subjected to chronic stress, and the quality of the joint is superior with greater chance of intact menisci and normal articular cartilage not yet damaged through recurrent subluxation. We present the result of thirty-eight kness in thirty-seven patients who had been treated with primary repair of augmented repair for acute ACL rupture from March, 1984 to August, 1990. Twenty-one knees were treated with primary repair and seventeen knees augmented repair. At an average 33 months follow up, the results obtained were as follows: 1. The patients were 23 males and 14 females with an average age of 27.1 years. 2. Twenty four knees were injuried during athletic endeavors, 9 knees by automobile accident, and 5 knees by landing from height. In 18 knees anterior cruciate ligament was ruptured at the proximal attachment, in 17 knees at the midsubstance tear and in 3 at the near distal attachment. 3. The average interval from injury to operation was 7.5 days (ranged from 1 to 14 days). 4. The results were evaluated by Hospital for Special Surgery knee rating scale (modified by Marshall) at an average 33 months (range from 13 months to 7 years and 6 months) follow-up study. 16 (76%) out of 21 knees treated with primary repair were rated as good or excellent. 12 (86%) out of 14 knees treated with augmented repair were rated as good or excellent. As the result of this study, acutely torn anterior cruciate ligaments appear to be successfully treated with primary repair or augmented repair according to torn site and shape of ligaments.
Anterior Cruciate Ligament ; Automobiles ; Cartilage, Articular ; Female ; Follow-Up Studies ; Humans ; Joints ; Knee ; Ligaments ; Male ; Rupture ; Sports ; Tears

The anterior cruciate ligament injury is one of the most common ligament injury of the knee joint, and anterior cruciate ligament is as important structure for stabilization as a primary restraint. Noyes reported that the diagnosis of a tek of the anterior cruciate ligament was made by the original treating physician in only 6.8%. And there are many controversies in its treatment. It is certain thatearly diagnosis and treatment are th most important clue. Authors studied 48 patients of isolated anterior cruciate ligament injury who were diagnosed by same physician from Jan. 1983 to Dec. 1985 after follow ups ranging from six mnths to 4 years, average beimng one year and two months. The results were as followings: 1. The most common cause was sports injury. 2. The most common sign and symptom were hemarthrosis in acute injury and giving way in chronic injury. 3. Anterior drawer test without anesthesia had 25% of diagnostic accuracy but pivot shift test under anesthesia 95.8%. 4. 31 cases in 48 cases (64.8) had associated meniscal injury. 5. In acute torn ACL, the primajy repair was preparable but conservative treatment with arthroscopic partial menisectomy was eful in chronic case.
Anesthesia ; Anterior Cruciate Ligament ; Athletic Injuries ; Clinical Study ; Diagnosis ; Follow-Up Studies ; Hemarthrosis ; Humans ; Knee ; Knee Joint ; Ligaments

Between Jan. 1976 and May 1987, Sixteen supracondylar fractures of the femur were treated by interlocking nailing. Of the 16 cases, 7 cases were intercondylar, 12 cases were segmental fractures of the femur, 4 cases were open fractures in the type of wound. 1. The simple supracondylar fracture involving the distal 9cm of the femur can be treated by interlocking nailing which makes firm fixation and allows early ambulation. 2. If the supracondylar fracture is accompanied with intercondylar fracture, careful reduction and transcondylar fixation by means of tibial bolt or cancellous screws are essential before the insertion of the nail. 3. The shape of the bent nail must be depended on the type of the fracture. If the nail is to be inserted into the anterolateral aspect of the distal fragment, the degree of bending of the nail is 400cm, and posteromedial is 110cm in radius. 4. The authors made several sagittal holes the at dorsum of the nail. So the screw can be easily inserted to the nail perpendicularly or obliquely, when the insertion of the screw through the transverse holes is difficult. 5. Of the 15 cases treated by interlocking nailing, 5 cases were excellent, 4 cases were good, 2 cases were fair, 4 cases were failure by schatzker assessment.
Early Ambulation ; Femur ; Fractures, Open ; Radius ; Wounds and Injuries

No abstract available.
Magnetic Resonance Imaging* ; Prostate* ; Prostatic Neoplasms*

STUDY DESIGN: Lumbar disc degeneration and segmental instability of the lumbar spine are causes of low back pain. Disc degeneration causes specific changes of the intervertebral disc, and could affect anatomic variations of end plate and vetebral body. However, the exact relationship between degenerative changes of the intervertebral disc and segmental motion characteristics is not known. It is known that radial tears of the annulus fibrosus initiate or accompany degenerative process of nucleus pulposus and the motion segment. It is hypothesis of this study that the existence of radial tear in the annulus fibrosis affects 3 dimension motion characteristics of motion segment. For the purpose, the degree of intervertebral disc degeneration is newly classified by existence of radial tear. Then, the resulting biomechanical motions are investigated. OBJECTIVES: To investigate effects of disc degeneration by the classification on kinematic motions of the motion segment from human lumbar spine and to suggest a quantified method to determine spinal instability in vivo. MATERIALS AND METHODS: A total of 60 spinal motion segments from human lumbar spine was used for this study. To measure 3 dimensioal motion of the motion segments, Vicon system(Oxford, England) with 3 cameras reflective markers and VAX station was used. 6 kinds of pure moments(flexion, extension, right and left axial rotation, and right and left lateral bending) were applied to the motion segments using dead weight for each loading step. At the end of test(maximum loading), motion segments were frozen for anatomical study. For making clear the degree of the degeneration of the disc, a new classification based on MRI results was used: Grade 1 is a normal young disc without tear; Grade 2 is a normal aging disc without radial tear; Grade 3 is a degenerative disc with radial tear; and Grade 4 is a severely degenerative disc with radial tear and other degeneration such as showing decreased disc height. RESULTS: The upper lumbar specimens with radial tears has increased flexion motions as compared to the normal group. Also, the right and left axial rotation in radial tear group increased as compared to the normal group. However, there were no statistical differences in other motions. For the lower lumbar specimens, there were no significant differences in measured motions in all directions between the normal and radial tear groups CONCLUSIONS: These results suggests that the segmental motions are affected by radial tear in the intervertebral disc. Thus, the radial tear in the annulus fibrosus of lumbar intervertebral disc could cause the instability of lumbar spine. Further research is required to determine the relationship between other structural changes and biomechanical characteristics, and future studies should include in vivo investigations to correlate these findings to patients'symptoms.
Aging ; Classification ; Fibrosis ; Humans ; Intervertebral Disc ; Intervertebral Disc Degeneration ; Low Back Pain ; Magnetic Resonance Imaging ; Spine

Injuries and pains of musculoskeletal joint in human body is common onset in industrialized world. However, muscle fatigue plays a very significant role in contributing causes of many pains associated with musculoskeletal joints. Based on this hypothesis, degree of muscle fatigue was investigated using electromyography measurement technique during isometric and concentric/eccentric muscle contractions. Different response of the muscle fatigue between two different muscle contractions (isometric and concentric/eccentric contractions) was examined by comparison of parameters which were median frequency, median power and RMS value. Healthy 16 young persons without previous musculoskeletal diesease history were tested with Noraxon Myosystem 2000 EMG measurement system. In this study, two different exercises were performed. First exercise was concentric/eccentric exercise. Second exercise was isometric muscle contraction. In the case of the isometric exercise, median frequency was decreased, but median power and RMS were increased. However, during the concentric/eccentric exercse, median frequency was increased, but median power and RMS were decreased. Both of those revealed that the pattern of the median frequency was W type, but median power and RMS were M type as time passed. In this study, the patterns of the muscle fatigue during concentric/eccentric exercise as well as isometric exercise were identified. It will be helpful to prevent musculoskeletal injury from over-working andexercising.
Electromyography* ; Exercise ; Human Body ; Humans ; Joints ; Muscle Contraction ; Muscle Fatigue*

The elbow joint is the most commonly dislocated-joint in the body except for the shoulder, and in children less then 10 years old, it is the most frequently dislocated articulation. The injury and the treatment are well described in most standard textbooks, but the characteristic findings and follow-up evaluations are not generally recognized. Authors have clinically analyzed 45 cases of traumatic fracture and dislocation of the elbow joint which are treated between January, 1975 and June, 1985 at the Department of Orthopedic Surgery, Wonju Medical College of Yonsei University. The results were as follows; 1. The age incidences were in even distribution except in the old ages where the incidence was low and the male to female ratio was 7: 3. 2. The major cause of the injury of the elbow was fall down (60%). 3. Posterior and posterolateral dislocations were about 60% of all cases. 4. Associated fractures were 35.6% of all the elbow dislocations, of which medial epicondyle fracture had the highest incidence. 5. Complications including ulnar nerve injury (3 cases), median nerve injury(1 case), radial nerve mjury(1 case), rupture of brachial artery(2 cases), recurrent dislocation(1 case) and calcification of ligament(2 cases) were observed. 6. Pure elbow dislocation occurred in 13 cases (28.9%). 7. The average immobilization period for patient with non-operative treatment (45%) and operative treatment(55%) were 7 days and 3 weeks, respectively, and much better results were seen in patients with non-operative treatment than in operative treatment and in shortened immobilization period.
Child ; Clinical Study ; Dislocations ; Elbow Joint ; Elbow ; Female ; Follow-Up Studies ; Gangwon-do ; Humans ; Immobilization ; Incidence ; Male ; Median Nerve ; Orthopedics ; Radial Nerve ; Rupture ; Shoulder ; Ulnar Nerve

237 patients with Legg-Calve-Perthes disease were treated during past 12 years. Among them, a comparative study was done for 87 patients who were followed up over 2 years. They were analyzed according to Catteralls classification and divided into a group of conservative treatment and of surgical treatment. 74 patients were boys and 13 patients were girls and the ratio of boys to girls was 5.7 to 1. The mean age was about 6.9-year-old. Bilateral involvement was observed in 6 patients. According to Catterall classification. 1(1.1%) was classified as group I, 27(29.0%) as group II, and 36(38.7%) as group III, and 29(31.2%) as group IV. According to assessment by Harrison et al., satisfactory result was achieved in 63.2% of cases of conservative treatment and 34.3% of cases of operative treatment. The measurement of epiphyseal quotient and femoral head sphericity(by Mose) were considered meaningful methods for assessing the result of the treatment. The most frequent one of “Head-at-Risk” factors was lateral subluxation of femoral head. The result of treatment was not always coincided with the classification by Catterall. In bilateral involvement, the first affected hip had better prognosis than contralateral one.
Classification ; Female ; Head ; Hip ; Humans ; Legg-Calve-Perthes Disease ; Prognosis

Shortening and angular deformities in children are one of important orthopedic management problem. Conceptually, lengthening of the short side in treatment of limb length inequality is, in most instance, the most attractive approach to this problem. Throughout the evolution of lengthening procedures, the method that has remained most consistently acceptable is osteotomy followed by gradual distraction. However, the idea of increasing the length of or modifying the axis of s bone during growth by means of distraction of the grwoth plate is relatively new. Recently, Monticelli and Spinelli have had experience with a new and novel method of lower limb lengthening by physeal distraction. We have studied the results of effect of distraction epiphysiolysis and the use of nonsteroidal anti-inflammatory agents to impede bone bridge as well as premature epiphyseal closure. There are some reports in which indomethacin could prevent reformation of a bone bridge between the epiphysis and metaphysis without inhibiting normal growth and bone remodeling. For this study, a total of 30 rabbits with an initial weight of about 600 gram was used. At operation two K-wires(l.lmm in diameter) were drilled percutaneously on parallel trscks through the epipaysis and diaphysis of proximal tibia. Epiphyseal distraction of Turnbuckle type designed at our school was applied on each side of K-wire insertion at the tibia. The correct position of pin was confirmed by radiography and the rate of distraction is 0.5–1mm per day. Distrsction was continued for 3–6 weeks and radiographs was taken every 2 weeks. Some rabbits was sacrified sfter removal of distractor. Through these examination, following results were obtained. 1. Seperation of the epiphysis from the metaphysis occurred after average 3 days, and it always occurred in the zone of provisional calcification. 2. Short term results of growth plate distraction looked promising and longer limbs were seen, but long term results were unsstisfactory with premature epiphyseal closure and bone bridge formation occuring in many cases. 3. The role of indomethacine to impede bone bridge formation across the seperated growth plate could be observed, and was found that shortening could be possibly decreased. 4. Distraction epiphysiolysis would be one of valuable leg lengthening procedure at an age when the subjects bone growth is nearly complete, and also the administration of indomethacin with growth plate distraction might be effective to diminish the significant Change of shortening or angulation in high-risk juvenile fractures.
Anti-Inflammatory Agents, Non-Steroidal ; Bone Development ; Bone Remodeling ; Child ; Congenital Abnormalities ; Diaphyses ; Epiphyses ; Epiphyses, Slipped ; Extremities ; Growth Plate ; Humans ; Indomethacin ; Leg ; Lower Extremity ; Methods ; Orthopedics ; Osteotomy ; Rabbits ; Radiography ; Socioeconomic Factors ; Tibia