1.Surgical Treatments of the Acute Anterior Cruciate Ligament Injuries
The Journal of the Korean Orthopaedic Association 1994;29(1):85-94
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
2.Clinical Study of Isolated Anterior Cruciate Ligament Injury
Jin Hwan AHN ; Jae Yong AHN ; Myung Chul YOO ; Jae Sung AHN
The Journal of the Korean Orthopaedic Association 1987;22(5):1055-1063
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
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Anterior Cruciate Ligament
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Athletic Injuries
;
Clinical Study
;
Diagnosis
;
Follow-Up Studies
;
Hemarthrosis
;
Humans
;
Knee
;
Knee Joint
;
Ligaments
3.Sex Cord Tumor with Annular Tubules and Serous Surface Papillary Carcinoma of the Ovary: A case report.
Dae su KIM ; Sang Yong SONG ; Geung hwan AHN
Korean Journal of Pathology 1999;33(8):627-630
Sex cord tumor with annular tubules (SCTAT) is a rare ovarian neoplasm which usually occurs in two forms. In patients associated with Peutz-Jeghers syndrome, the tumors are usually small, bilateral or multifocal, and show benign clinical course. However, tumors from patients without the syndrome are often large, usually unilateral, and rarely show malignant behavior. Serous surface papillary carcinoma (SSPC) is an aggressive neoplasm which involves peritoneal linings, including ovarian surface. Recently, we encountered a case of an unusual combination of SCTAT and SSPC in the ovary of a 55-year-old Korean woman presented with abdominal distention for one year. Systemic review and physical examination were within normal limit, except for abdominal discomfort and distention. There was no stigmata of Peutz-Jeghers syndrome in all diagnostic examinations, including gastroscopy and colonoscopy. Pelvic computed tomography showed adnexal mass with multiple peritoneal nodules. Exploration revealed uterine and ovarian surfaces covered with multiple, yellow-white papillary nodules. However, the sizes of both ovaries were within normal limit. Typical serous papillary carcinomas were identified in nodules from peritoneum and ovarian surfaces. Well-circumscribed columnar epithelial cell nests composed of ring-shaped tubules encircling hyalinized basement membrane-like materials were found in the ovary away from serous surface papillary carcinoma.
Carcinoma, Papillary*
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Christianity
;
Colonoscopy
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Epithelial Cells
;
Female
;
Gastroscopy
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Humans
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Hyalin
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Middle Aged
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Ovarian Neoplasms
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Ovary*
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Peritoneum
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Peutz-Jeghers Syndrome
;
Physical Examination
5.Histological Changes of Innervated Muscles after neourolysis: An Experimental Study on Rabbit Sciatic Nerve
Jin Hwan AHN ; Myung Chul YOO ; Yong Suk JEON
The Journal of the Korean Orthopaedic Association 1983;18(4):651-659
The normal vascularization of peripheral nervesand the vascular factor in peripheral nerve les ons have regained increasing interest among surgeons. So, several attempts have been made to assess the relative importance of the vasa nervorum and intrinsic longitudinal vascular plexuses of nerve in maintaining the blood supply.of a segment of nerve trunk. The purpose of our experiment was to determine in laboratory animals the maximum extent to which a nerve can be mobilized without impairing its vascular supply so much that nerve function is jeopardized. All our studies were carried out on both sides of the sciatic-tibial nerve of thirty-two rabbit which were anesthetized intraperitoneally with urethane. The experimental procedure differed in three groups, Group I in which the sciatic nerve was mobilized 3 cm in length, Group II was mob lized 7 cm length and Group III was mobilized 10cm long. The tibialis post. muscles of each group were analyzed at intervals ot 1,2,4,6 and 8 weeks after neurolysis. Each muscles were examined grossly and histologically after hematoxylin and eosin staining. Experimental studies showed that a peripheral nerve is a well vascularized structure with a considerable reserve capacity in its microirculation. The intrinsic collateral system is well developeed and experimental deta supported the view that peripheral nerves may be mobilized over a cons derable length with or the only minium interference with their microvascular flow. The results were as follows: 1. The first evidence of histologic change in the muscle fibers was in the sarcolemmal neclei. 2. Localized atrophy of muscle fibers were observed at the six weeks after neurolysis. 3. With increasing length of neurolysis, abnormal finding were developed in early stage. 4. Massive atrophy of muscle fibers were noted in the muscle fibers which neurolysed more 7cm.
Animals, Laboratory
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Atrophy
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DEET
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Eosine Yellowish-(YS)
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Hematoxylin
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Muscles
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Peripheral Nerves
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Sciatic Nerve
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Surgeons
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Urethane
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Vasa Nervorum
6.The Surgical Approach for Direct Repair and Reconstruction on Posterior Cruciate Ligament Injury in the Knee Joint
Jin Hwan AHN ; Yong Girl LEE ; Hwang Keon CHO
The Journal of the Korean Orthopaedic Association 1988;23(4):1015-1019
The PCL is the strongest ligament in the knee joint. And it gives the posterior stability to the knee joint and act on rotation of knee joint. The many authors reported the surgical approaches for PCL. But none of them was satisfactory for exposure for PCL. Authors report the approach for repair and reconstruction on PCL injury The purpose of this report is to get the more satisfactory exposure of operation field for anatomical repair of injuried PCL. 1. PCL injury combined with MCL injury. a) MCL injury at its femoral attachment area. Detach the injuried MCL from femoral attachment completely, continue with anteromedial incision, and can observe both femoral and tibial attachment of PCL and ACL. b) MCL injury at its tibial attachment area. Retract the injuried MCL, medial meniscus, joint capsule superiorly, and through between medial meniscus and tibial proximal protion, also can observe the tivial attachment of PCL. 2. Isolated PCL injury. a) at tibial attachment(avulsion fracture) Through posterior approach or straight anteromedial approach, incised the posteromedial joint capsule, and can observed the tibial attachment of PCL. b) at substance level. Detach the MCL from its femoral attachment with bone-block and apply the knee valgus force. And can observe the entire length of PCL. Also reinforce the repaired site of PCL by reconstruction using a semitendinosus tendon.
Joint Capsule
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Knee Joint
;
Knee
;
Ligaments
;
Menisci, Tibial
;
Posterior Cruciate Ligament
;
Tendons
7.The Interlocking Kuntscher IM Nailing for Femur Shaft Fracture
Myung Chul YOO ; Yong Girl LEE ; Jin Hwan AHN ; Jae Sung AHN ; Bong Keun KIM
The Journal of the Korean Orthopaedic Association 1988;23(6):1529-1540
The intramedullary nailing is a good method of treatment in femur shaft fracture but it is not available in some fracture pattern or fracture level. And it is very difficult with conventional Kiintscher nailing to prevent torsional stress and fix rigidly in unstable fracture of the femur shaft. The unstable fracture by comminuted fracture or segmental fracture, nonunion and pathologic fracture needed the rigid fixation. Interlocking Kuntscher IM nailing can provide antitorsional stability, good axial alignment and prevent shortening of the fracture site, also allow early ambulation and joint exercise. We analysed 51 patients 52 cases of interlocking Kiintscher IM nailing from May 1981 to March 1988. The interlocking Kuntscher IM nailing prevents the rotational and axial roading. The interocking Kuntscher IM nailing has expanded its application in fracture pattern and fracture site. The interlocking IM nailing provides rigid fixation in severe comminuted fracture. segmental fracture, long spiral fracture, and other several unstable fractures and eliminates splinting or external supports, so it is possible doing early joint exercise. The interlocking Kuntscher IM nailing was also considered best internal fixation method in pathologic fracture or sever osteoporosis. The static interlocking for rigid fixation and the dynamic interlocking method for axial compression to fracture site during weight bearing can be adapted appropriately to fracture pattern. Radiation hazard during the interlocking nailing is not considerable.
Early Ambulation
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Femur
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Fracture Fixation, Intramedullary
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Fractures, Comminuted
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Fractures, Spontaneous
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Humans
;
Joints
;
Methods
;
Osteoporosis
;
Splints
;
Weight-Bearing
8.Clinical Study of Total Hip Prosthesis Replacement: Report of 69 cases
Jin Hwan AHN ; Myung Chul YOU ; Myung Hwan OH ; Dong Wook PARK ; Young Yong KIM
The Journal of the Korean Orthopaedic Association 1977;12(4):709-718
The goals of hip arthroplasty have been to eliminate pain, decrease deformity, increase morbility and obtain stabiIity. Currently total hip replacement is the best avaliable procedure to accomplish these goals. A prospective study of total hip arthroplasty was begun at the orthopedic dept of Kyung Hee Medical College in 1974. Between May, 1974 and June, 1977. 69 total hip replacements of the Charnley type, the Trapesoidal-28 type and the Muller type were peformed by the authors. Of the 60 Patients involved in this study, 9 had bilateral operations. The Charnley type Prosthetic device was used in 56 cases, the Trapesoidal-28 type in 7 cases and the Muller type in 6 cases. Complications included wire breakage, dislocation, loosening, femur shaft perforation, nonunion of greater-trochanter, acetabular protrusion, transient femoral nerve palsy, femur shaft fracture, infection, socket lateralization, ectopic bone formation and death. In 59 patients of the 60 patients, 53 patients felt that they were definitely improved, 5 patients felt their condition was unchanged and 1 patient felt her condition was worse.
Acetabulum
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Arthroplasty
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Arthroplasty, Replacement, Hip
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Clinical Study
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Congenital Abnormalities
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Dislocations
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Femoral Nerve
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Femur
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Hip Prosthesis
;
Hip
;
Humans
;
Orthopedics
;
Osteogenesis
;
Paralysis
;
Prospective Studies
9.Reliability of Singh's index Checked by the Dual Photon X-ray Absorptiometry(LUNAR D.P.X)
Myung Chul YOO ; Jin Hwan AHN ; Yong Girl LEE ; Se Jin KUM ; Jae Sung AHN ; Kyung Tae KIM
The Journal of the Korean Orthopaedic Association 1989;24(5):1376-1383
There are several methods available to check bone masses. One of them is Singhs index which is singlest way with grading trabecular pattern of the proximal femur on anteroposterior X-ray film and the other is recently developed Dual Photon X-ray Absorptiometry which measures bone mineral contents. Some authors proclaim that Singh's index has low accuracy, objectiveness and reproducibility. So we studied for reliability of Singh's index and correlation between Singh's index and bone mineral contents measured by Dual Photon X-ray Absorptiometry in 65 patients. There are significant differences between 3 orthopedic surgeons in interpreting Singh's index (interpersonal difference). There are significant differences between first and second interpretation out of same surgeons (intrapersonal difference). There are significant differences interpretating among interpreted Singh's indices from films of different radiological exposures in the same radiograph. There are fair correlations(0.60-0.66) between Singhs index and bone mineral density. The Singh's index was overestimated in low bone mineral density with under-exposed radiograph, but Singh's index was under-estimated in high bone mineral density with over-exposed radiograph. Singh's index can be useful in clinical application by some modification.
Absorptiometry, Photon
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Bone Density
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Femur
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Humans
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Orthopedics
;
Surgeons
;
X-Ray Film
10.A Case of Mucocutaneous Lymph Node Syndrome complicated by Coronary Aneurysm.
Phil Joun SONG ; Chung Hye CHU ; Kyoo Hwan RHEE ; Yong Mook CHOI ; Chang Il AHN
Journal of the Korean Pediatric Society 1984;27(2):197-201
No abstract available.
Coronary Aneurysm*
;
Mucocutaneous Lymph Node Syndrome*