1.The Effect of Amniotic Membrane on the Fibrosis between Orbital Connective Tissue and Porous Polyethylene Sheet Iimplant.
Hye Won CHEON ; Jong Wook KIM ; Jae Hyong BAE
Journal of the Korean Ophthalmological Society 2003;44(2):396-401
PURPOSE: Soft tissue or muscle adhesion to the Porous Polyethylene Sheet Implant (PPSI) can cause postoperative extraocular motility disturbance after orbital fracture repairs using PPSI. This study was designed to examine the efficacy of amniotic membrane transplantation in the suppression of fibrosis between orbital connective tissue and PPSI. METHODS: Twelve New Zealand white rabbits were grouped as A, B, and C and conventional PPSI were implanted between orbital connective tissue and orbital floor in group A; PPSI with a barrier surface (PPSI-B) in group B; PPSI with amniotic membrane transplantation in group C. The implants were harvested at 8 weeks postoperatively, and stained with Masson trichrome and hemaoxylin and eosin staining techniques. RESULTS: In group A, the PPSI demonstrated dense adhesion on both the soft tissue implant and the bone implant interfaces. A lot of fibroblasts were observed on the surface of PPSI. In group B, the PPSI-B demonstrated less fibrosis over the barrier surface, and less fibroblasts than in group A. In group C, the PPSI with amniotic membrane transplantation manifested least fibrous adhesion among three groups. CONCLUSIONS: In orbital fracture repair, amniotic membrane transplantation could reduce the fibrosis between orbital connective tissue and PPSI, and might prevent the postoperative extraocualr motility disturbance.
Amnion*
;
Connective Tissue*
;
Eosine Yellowish-(YS)
;
Fibroblasts
;
Fibrosis*
;
Orbit*
;
Orbital Fractures
;
Polyethylene*
;
Rabbits
2.Calcific Tendinitis of Peroneus Longus Tendon (A Case Report).
Hyong Nyun KIM ; June Young JEON ; Yong Wook PARK
Journal of Korean Foot and Ankle Society 2012;16(3):193-196
Calcific tendinitis usually occurs in the supraspinatus tendon of the shoulder. Calcific tendinitis of the peroneus longus tendon has not been reported on the Korean journals. Differential diagnosis includes bipartitis os peroneum, os peroneum fracture and peroneal tendinitis. We report a rare case of calcific tendinitis of the peroneus longus tendon which responded well with the conservative treatment.
Diagnosis, Differential
;
Shoulder
;
Tendinopathy
;
Tendons
3.Anatomical Differences of the Fibular Incisura of the Tibia between Ankle Fracture with Syndesmotic Injury and without Syndesmotic Injury.
Hyong Nyun KIM ; Soo Bum KIM ; Yong Wook PARK
Journal of Korean Foot and Ankle Society 2008;12(2):150-155
PURPOSE: This study was performed to compare the anatomic differences of the fibular incisura of the tibia between ankle fractures with and without syndesmotic injuries. MATERIALS AND METHODS: 42 patients were involved in this study: Group I was composed with 14 cases of ankle fractures with syndesmotic injuries; Group II was composed with 14 cases of ankle fractures without syndesmotic injuries; Group III was composed with 14 cases of volunteers. The height averaged 170.1 cm (range, 159~181 cm) in group I, 168.9 cm (range, 156~184 cm) in group II, and 170.4 cm (range, 161~77 cm) in group III. The mean height did not show a statistically significant difference between groups (p>0.05). All patients were taken axial computed tomography. The length of anterior and posterior facets, angle between anterior and posterior facet, and depth of the fibular incisura of the tibia were measured. RESULTS: The mean length of the anterior facet was 11.5 mm (range, 9.2~15.7 mm) in group I, 12.2 mm (range, 7.3~17.0 mm) in group II, and 10.3 mm (range, 8.7~14.0 mm) in group III (p>0.05). The mean length of the posterior facet was 12.3 mm (range, 9.0~14.5 mm) in group I, 11.0 mm (range, 7.3~16.2 mm) in group II, and 13.0 mm (range, 9.2~15.9 mm) in group III (p>0.05). The mean angle between anterior and posterior facet was 139.1 degrees (range, 125.5~154.0 degrees) in group I, 144.2 degrees (range, 134.7~152.6 degrees) in group II, and 131.5 degrees (range, 117.6~144.4 degrees) in group III (p<0.05). The mean depth of the fibular incisura of the tibia was 4.1 mm (range, 3.2~5.8 mm) in group I, 4.6 mm (range, 3.1~7.1 mm) in group II, and 3.1 mm (range, 1.5~4.0 mm) in group III (p<0.05). CONCLUSION: There are some statistical differences of angle between anterior and posterior facet and depth of the fibular incisura of the tibia between ankle fractures with and without syndesmotic injuries.
Animals
;
Ankle
;
Humans
;
Tibia
4.Isolated Syndesmotic Injury.
Yong Tae KIM ; Hyong Nyun KIM ; Yong Wook PARK
Journal of Korean Foot and Ankle Society 2016;20(3):100-105
Syndesmotic injury can either be isolated or associated with bony or ligamentous ankle injury. When it is not associated with an ankle fracture, it may not be easy to diagnose, especially when there is no franck diastasis on a plain radiograph. Without proper treatment, syndesmotic injury can lead to chronic pain due to impingement of scar tissues and instability. It may further lead to ankle arthritis. Early diagnosis with appropriate management is a prerequisite to avoid these problems. Herein, we review and discuss the mechanism of injury, classification, diagnosis, and treatment of isolated syndesmotic injury.
Ankle
;
Ankle Fractures
;
Ankle Injuries*
;
Arthritis
;
Chronic Pain
;
Cicatrix
;
Classification
;
Diagnosis
;
Early Diagnosis
;
Ligaments
;
Sports
5.Synovial Chondromatosis of the First Metatarsal(A Case Report).
Hyong Nyun KIM ; Soo Bum KIM ; Yong Wook PARK
Journal of Korean Foot and Ankle Society 2008;12(1):111-115
Synovial chondromatosis is an uncommon disorder characterized by cartilaginous proliferation in the synovium. The cartilaginous nodules occur in the synovial membrane of a joint, bursa, or tendon sheath. It frequents large joints including knee, hip, and elbow. Synovial chondromatosis originating from the first metatarsal is extremely rare. We report a case of 37-year-old man with synovial chondromatosis of the first metatarsal.
Adult
;
Chondromatosis, Synovial
;
Elbow
;
Hip
;
Humans
;
Joints
;
Knee
;
Metatarsal Bones
;
Synovial Membrane
;
Tendons
6.Professional Status of Infectious Disease Specialists in Korea:A Nationwide Survey
Bongyoung KIM ; Byung Wook EUN ; Eunjung LEE ; Tae Hyong KIM ; Suyeon PARK ; Se Yoon PARK
Journal of Korean Medical Science 2022;37(47):e320-
Background:
Infectious disease (ID) specialists are skilled facilitators of medical consultation who promote better outcomes in patient survival, antibiotic stewardship as well as healthcare safety in pandemic response. This study aimed to assess the working status of ID specialists and identify problems faced by ID professionals in Korea.
Methods:
This was a nationwide cross-sectional study in Korea. An online-based survey was conducted over 11 days (from December 17–27, 2020), targeting all active adult (n = 281) and pediatric (n = 71) ID specialists in Korea (N = 352). Questions regarding the practice areas of the specialists were divided into five categories: 1) clinical practices of outpatient care, inpatient care, and consultations; 2) infection control; 3) antibiotic stewardship; 4) research; and 5) education and training. We investigated the weekly time-use patterns for these areas of practice.
Results:
Of the 352 ID specialists, 195 (55.4%; 51.2% [144/281] adult and 71.8% [51/71] pediatric ID specialists) responded in the survey. Moreover, 144 (73.8%) of the total respondents were involved in all practice categories investigated. The most common practice area was outpatient service (93.8%), followed by consultation (91.3%) and inpatient service (87.7%). Specialists worked a median of 61 (interquartile range: 54–71) hours weekly: patient care, 29 (14–37) hours; research 11 (5–19) hours; infection control 4 (2–10) hours; antibiotic stewardship, 3 (1–5) hours; and education/training, 2 (2–6) hours.
Conclusion
ID specialists in Korea simultaneously undertake multiple tasks and work long hours, highlighting the need for training and employing more ID specialists.
7.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
8.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
9.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.
10.Incidence and Risk Factors of Deep Vein Thrombosis after Foot and Ankle Surgery
Young Uk PARK ; Hyong Nyun KIM ; Jae Ho CHO ; Taehun KIM ; Gunoo KANG ; Young Wook SEO
Clinics in Orthopedic Surgery 2024;16(6):994-1000
Background:
Deep vein thrombosis (DVT) is a common complication in orthopedic surgery and has the potential to lead to fatal complications such as pulmonary thromboembolism. However, the precise incidence and risk factors for DVT in the foot and ankle fields remain unclear. This study aimed to analyze the prevalence of DVT and identify its risk factors after foot and ankle surgery.
Methods:
Between September 2020 and July 2023, screening duplex ultrasonography was performed on 278 patients who underwent foot and ankle surgery and required immobilization. The findings from screening duplex ultrasonography were assessed in conjunction with the symptoms present at the time of diagnosis. Heterogeneous demographic data that could serve as potential risk factors for DVT, including diagnosis, body mass index, and other medical histories, were examined alongside pertinent surgeryrelated data, such as tourniquet time.
Results:
Among the 278 individuals, DVT occurred in 41 patients (14.7%). Among these, 92.7% originated at the calf level and the majority were asymptomatic. The cases originating above the calf accounted for 3 cases, representing 7.3% of patients diagnosed with DVT (1.1% of the entire screened population). Acute trauma, history of previous DVT, and old age were identified as statistically significant risk factors for DVT occurrence, with odds ratios of 2.44 (p = 0.04), 6.40 (p = 0.02), and 1.16 (p = 0.03), respectively.
Conclusions
After foot and ankle surgery, DVT occurred in 14.7% of cases. Acute trauma, history of DVT, and old age were identified as risk factors for DVT. These findings highlight the necessity of careful monitoring and appropriate prophylactic interventions for high-risk patients. Further investigation is required to determine effective prophylactic strategies for this patient population.