1.A 2 Cases of Ectopic Bone Formation Treated by Radiation Therapy
Chang Ju LEE ; Yung Sik YANG ; Byoung Moon AHN ; In Sung LEE
The Journal of the Korean Orthopaedic Association 1982;17(6):1218-1222
It is generally accepted that ectopic bone should be removed after full maturation. Removal of immature ectopic bone was attempted combined with immidiate postoperative irradiation to suppress its recurrence. The authors report two cases immature heterotropic bone resection around elbow joint followed by 2000 Rad midplane irradiation given in ten fractions over fourteen days. The results obtained are as follows: 1. There was no evidence of recurrence after removal of immature ectopic bone. 2. Improved range of joint motion was observed during 3 months and 6 months posteroperatively.
Elbow Joint
;
Joints
;
Osteogenesis
;
Recurrence
2.Modified Weaver and Dunn Technique in the Treatment of Acromioclavicular Separation
Yung Khee CHUNG ; Chang Ju LEE ; Ik Yull CHANG ; Byoung Moon AHN ; Chang Rock OH
The Journal of the Korean Orthopaedic Association 1982;17(6):1181-1187
Thirty one cases of acromioclavicular injuries were treated in both Kangnam Sacred Heart Hospital and Hangang Sacred Heart Hospital during the period from May 1974 to April 1981. Three cases were classified to type 2 injuries and twenty eight were type 3. Among 31 cases one of the type 2 injuries was treated with closed reduction followed by thoracobrachial cast and remaining thirty received surgical treatment. Twenty one cases were operated on by technique of Weaver and Dunn, 8 cases by modified Phemister method and one case by Stewart technique. Preperative and postoperative stress film were evaluated and cap the coracoclavicular distance were measured. In twelve complete dislocation the authors modified the original Weaver and Dunn procedure by taking a bone chip along with the acromial end of the coracoacromial ligament. This seemed to provide a strong bony fulcrum for the suture of the ligament to clavicle as well as promoting bone to bone union. The results of this modified procedure were excellent.
Clavicle
;
Dislocations
;
Heart
;
Ligaments
;
Methods
;
Sutures
3.Lunate Dislocation (A Review of Six Cases)
Ho Guen CHANG ; Byoung Moon AHN ; Yung Sik YANG ; Won Ho CHO ; Chang Ju LEE
The Journal of the Korean Orthopaedic Association 1983;18(2):389-394
Six cases of lunate dislocation were treated in the departments of orthopaedic surgery, Hangang Sacred Heart Hospital and Kangnam Sacred Heart Hospital, Hallym College during the period from March 1, 1978 to August 31, 1982. The results were as follows; l. Among the total 6 cases, two cases had lunate dislocation only and the other four had associated injuries of the same wrist joints. 2. Marupulative reduction was successful in only one case. Five cases were treated by open reduction, and for four of them internal fixation was tried. 3. Postoperative roentgenograms showed acceptable reductions in all cases except one which redislocation occurred. This case showed lunate dorsiflexion instability and was treated with extensor carpi radialis longus tenodesis. 4. The cases with pure lunate dislocation yielded better functional recovery than those with associated carpal injuries.
Dislocations
;
Heart
;
Tenodesis
;
Wrist Joint
4.Observation of Fracture Load Index in Tibia Fracture Treated with Patella Tendon Bearing Cast
Chang Ju LEE ; Jho Woong KANG ; Young Sik YANG ; Byoung Mun AHN ; Myoung Kyoung KIM
The Journal of the Korean Orthopaedic Association 1983;18(4):725-732
The finger flexor injuries are very difficult to treat satisfactorily. It is usually said that the earlier the treatment performed, the better result obtained. But the delicasy of the hand anatomy and its function as well as the absence of the hand surgeon in the first aid care make the problem more complex. Even if we made the primary treatment to the flexor tendon injuries, some disabilities are often remained. We have treated fifty eight cases of old flexor tendon injuries in forty eight patients, the results can be summarized as follows. 1. The cause of the tendon damage is due to the laceration injury in the majorities of the cases. T,he tendon injuries are especially common between the late second and the early third decade. 2. In the injury of the Zone II with pulley distortion, the pulley reconstruction using palmaris longus or fascia from other sites will prevent bowstring and help the tendon function. 3. The Zone II can be subdivided into two subspecific areas. The proximal area is from the distal palmar crease to the midoprtion of porximal phalanx and the distal one is from the midportion of the proximal phalanx to the insertion of the sublimis tendon. In the proximal area one can repair the injured tendon directly after removal of the A1 and about proximal half of the A2 pulley without any subsequent bowstring if the tendon and its tunnel is relatively well preserved. Thus one can convert this proximal portion of Zone II to Zone III. So the proximal area of the Zone II should be differentiated from the remaining distal part of the Zone II. 4. At six months after the operation the result of the operation was analyzed by the percentage of the recovery, which was calculated by the postoperative active range of the interphalangeal joints divided by one hundred seventy five degrees that means the available total range of motion of normal interphalangeal joints. Excluding the cases with the tenodesis or arthrodesis, the total result revealed good or excellent in about ninty percentages with this method. 5. There were two fingers that showed a postoperative lumbrical plus state in Zone II, which were recovered spontaneously within three to four months postoperatively. So it is considered that the relative shortening of the lumbrical muscles can be treated and overcome conservatively by the active use of the fingers, and there is no need to perform an lumbrical tenotomy to correct this kind of muscle imbalance.
Arthrodesis
;
Fascia
;
Fingers
;
First Aid
;
Hand
;
Humans
;
Joints
;
Lacerations
;
Methods
;
Muscles
;
Patella
;
Patellar Ligament
;
Range of Motion, Articular
;
Tendon Injuries
;
Tendons
;
Tenodesis
;
Tenotomy
;
Tibia
5.A comparative study about the position of upper and lower jaws, and first molars in normal occlusion and Angle's Class I,II,III malocclusions.
Byoung Mo YUN ; Byoung Keun AHN ; Geon Ju RHEE ; Sun Hae KIM ; Young Ju PARK ; Ho Jin HAN
Korean Journal of Orthodontics 1993;23(4):633-644
There has been so much controversies about the position of upper and lower jaws, and their first permanent molars in normal occlusion and Angle's class I,II,III malocclusions. So, the purpose of this study is to compare the position of upper and lower jaws, and their first molars in normal occlusion and Angle's class IIIIII malocclusions by lateral cephalometric analysis. The sample consisted of one hundred and twenty girls(thirty in each group) who had completed growth. The findings of this study were as follows: 1. In class I malocclusion, both maxilla and mandible were slightly posterior position than normal occlusion, but they showed harmonious relationship. 2. In class II malocclusion, the mandible was greatly retruded, and the maxilla was also slightly retruded to the cranial base as compared with normal occlusion. 3. In class III malocclusion, the maxilla was significantly retruded to the cranial base, but no significant difference was found in mandibular position as compared with normal occlusion. 4. The maxillary first molar was located at posterior position in class II malocclusion, and anterior position in class III malocclusion to the cranium, so that the rotation of mandible was influenced by that. 5. The mandibular first molar showed constant relationship to the mandible in all four groups, but different position to the cranial base in direct proportion to the mandibular position. 6. On the treatment planning of class II malocclusion, it seems to be better to promote the mandibular horizontal growth by inhibiting the vertical growth of maxillary molar area, and on the treatment planning of class III malocclusion, it seems to be better to promote the antero-inferior growth of maxilla and to promote the mandibular vertical growth by inducing the vertical growth of maxillary molar area.
Jaw*
;
Malocclusion*
;
Mandible
;
Maxilla
;
Molar*
;
Skull
;
Skull Base
6.Effects Of Chitosan On Human Osteoblasts.
Ki Hong KIM ; Young Ju PARK ; Jun Woo PARK ; Yong Chan LEE ; Byoung Ouck CHO ; Byoung Keun AHN
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2002;28(4):280-285
As the result of the study concerning "bone inducibility of chitosan", 1. "BMP-2"was observed mainly through the test when the "osteoblast"is exposed to the "chitosan". The expression of BMP-2 was 542.63 times compared to control after 2 hours exposure and it was maintained 16.60 times till 24 hours. 2. The expression of BMP-4 was decreased compared to control during exposure. 3. The expression of BMP-7 revealed two peaks during exposure. 4. The expression of osteocalcin was increased in early phase, and then decreased. Although it is not clear whether the "chitosan"is clinically effective material as a "bone induction material", we could say that it has a function for bone induction. Further detailed study will be required.
Bone Morphogenetic Protein 7
;
Chitosan*
;
Humans*
;
Osteoblasts*
;
Osteocalcin
7.The Influence of Respiratory Virus and Atopy on Recurrence of Virus Induced Wheezing in Children.
Byoung Whan AHN ; Dong Hwan LEE ; Im Ju KANG
Pediatric Allergy and Respiratory Disease 2010;20(3):179-187
PURPOSE: We studied to know the influence of respiratory virus and atopic characteristics on recurrence of virus-induced wheezing in children under 3 years of age. METHODS: Between March 2006 and February 2009, 340 children who were hospitalized with symptoms of sudden onset of dyspnea, cough and wheezing after symptoms of acute upper respiratory tract infection and detected specific respiratory viruses by multiplex RT-PCR were enrolled. The data were analyzed according to age (< or =6, 7-12, 13-24, and 25-36 months) as well as previous wheezing episodes (first or recurrent episode). Respiratory viruses and atopic characteristics were compared among individual groups. RESULTS: The 3 commonly identified viruses were RSV (62.4%), PIV (15.6%) and RV (11.8%). PIV and RV were significantly associated with recurrence, but RSV was not significantly associated with recurrence. Food sensitization, aeroallergen sensitization, elevation of total IgE, history of atopic dermatitis and history of parent asthma were significantly associated with the recurrent episode, but serum eosinophil and passive smoking were not significantly associated with the recurrent episode. CONCLUSION: These findings show that specific respiratory viruses can have different influence on recurrence and that atopy may be a risk factor for recurrence of wheezing, in children under 3 years of age with virus-induced wheezing.
Asthma
;
Child
;
Cough
;
Dermatitis, Atopic
;
Dyspnea
;
Eosinophils
;
Humans
;
Immunoglobulin E
;
Parents
;
Recurrence
;
Respiratory Sounds
;
Respiratory Tract Infections
;
Risk Factors
;
Tobacco Smoke Pollution
;
Viruses
8.A Case of Odontogenic Infratemporal Fossa Abscess.
Korean Journal of Otolaryngology - Head and Neck Surgery 2003;46(4):338-340
Infratemporal fossa abscess is difficult to diagnose by conventional physical examination because of the anatomic location of this structure. Infratemporal fossa abscess has been seen secondary to maxillary sinus fracture and infections involving the maxillary molars. It is difficult to observe on plain films but is readily apparent on CT evaluation. The loss of the retromaxillary fat plane is the most notable feature. Streptococcus spp and Bacteroides spp have been isolated from the abscess. Therapy consists of incision and drainage, and appropriate antibiotic therapy. The following case report and review of the literature are offered in hope of alerting physicians to the occurrence of this disease and to the circumstances in which the diagnosis should be actively excluded.
9.Buschke-Ollendorff Syndrome: A Case Report
Byoung Suck KIM ; Eun So LEE ; Ye Yeon WON ; Hyon Ju KIM ; Hee Jae JOO ; Kyeong Jin HAN ; Jae In AHN
The Journal of the Korean Orthopaedic Association 1996;31(4):942-948
The osteopoikilosis is commonly known as harmatoma in which metaphyseal and epiphyseal area of long bones and the bone of pelvis, hands, feet and et al, contain islands of dense cortical bone with normal Harversian system without any symptoms. The radiologic findings of the osteopoikilosis is multitude of oval or well-circumscribed areas of increased density, 2 to 10 mm in size, in symmetrical distribution and normal uptake in bone scan. Buschke-Ollendorff syndrome, which is transmitted by autosomal dominant, is characterized by the association of osteopoikilosis and connective tissue nevi which are popular and symmetrically distributed lesions on chest, back, buttock, thigh or arm. Authors report three Buschke-Ollendorff syndrome, studied by CT scan, MRI, bone scan and bone and skin biopsy, among five patients associated with osteopoikilosis found by simple radiologic study from ten members in one family with their pedigree.
Arm
;
Biopsy
;
Buttocks
;
Connective Tissue
;
Foot
;
Hand
;
Humans
;
Islands
;
Magnetic Resonance Imaging
;
Nevus
;
Osteopoikilosis
;
Pedigree
;
Pelvis
;
Skin
;
Thigh
;
Thorax
;
Tomography, X-Ray Computed