• Title/Summary/Keyword: 슬개골 탈구

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슬개 대퇴 불안정성에 대한 진단적 접근 방법

  • Kyung, H.S.;Hwang, J.K.
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.7 no.2
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    • pp.84-94
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    • 2008
  • 슬개 대퇴 불안정성의 진단은 정확한 해부학적 지식을 바탕으로 역동적인(dynamic)기전을 이해하여야 한다. 슬개골의 저명한 탈구는 쉽게 진단되지만, 경미한 외상으로 슬개골이 탈구되어 정복된 후에는 올바른 진찰(dynamic study)없이 방사선 검사(static study)만으로는 진단을 놓치는 경우가 많다. 그러므로 정확한 진단을 위해서는 병력, 이학적 검사, 방사선 검사, 전산화 단층 촬영, 자기 공명 영상 그리고 관절경 검사까지 다양하게 필요할 수 있다.

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A Patellar Surgery Haptic Simulator for Veterinary Training (수의학 훈련을 위한 슬개골 수술 햅틱 시뮬레이터)

  • Lee, Jun;Eom, KiDong;Seo, Anna
    • Journal of the Korea Computer Graphics Society
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    • v.26 no.1
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    • pp.1-6
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    • 2020
  • Patella surgery of small animal is an important veterinary surgery that the veterinarian should saw and drill the dislocated patella in order to fix the corrected position. However, the animal protection laws restrict the veterinarian students' chances for the practice and training of the patella surgery. This paper proposed a haptic based patella surgery simulator for veterinarian students. We modelled force feedback methods in order to provide best similar haptic feedbacks to the real drilling feedbacks in the patella surgery. The proposed patella drilling simulator provides haptic interface as a drill and a workbench in order to provide best surgery experiences. We conducted the performance evaluations in order to prove usability of the proposed patella surgery interface.

Results of Surgical Treatment of Patella Dislocation (슬개골 탈구의 수술적 치료 결과)

  • Kim, Hui Taek;Cho, Yoon Jae
    • Journal of the Korean Orthopaedic Association
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    • v.56 no.2
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    • pp.134-141
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    • 2021
  • Purpose: Patellar dislocations have a range of causes. This study examined the results of treatment aimed at balancing soft tissues around the patella. Materials and Methods: Thirty-two patellar dislocations in 28 patients (21 females and seven males) were examined. The mean patient age at the time of surgery was 11.5 years, and the mean follow-up period was 4.6 years. Dislocations were 19 chronic, six habitual, six congenital, and one acute. Soft tissue balancing surgery included lateral capsular release, medial capsular plication, and inferolateral transfer of the vastus medialis obliquus. Medial transfer of the patellar tendon, partial strip of the rectus femoris and patella tendon, and distal femoral osteotomy were also performed selectively. The preoperative Q angle, femoral anteversion angle, tibial external rotation angle, tibial tubercle-trochlear groove distance (TT-TG distance), mechanical femoral-tibial angle, and femoral trochlear dysplasia according to Dejour were measured, and the pre- and postoperative Lysholm-Tegner scores were used to analyze the clinical results. Results: The mean preoperative Q angle, TT-TG distance, femoral anteversion angle, tibial external rotation angle, mechanical femoraltibia angle, and Lysholm-Tegner score were 9.3°, 15.5 mm, 25.6°, 30.4°, 3.0°, and 75.8, respectively. Eleven patients had systemic ligament laxity with a Beighton score of five or more. Twenty-two patients had femoral trochlear dysplasia: four type A (3 patients), 16 type B (15 patients), one type C (1 patient), and four type D (3 patients). Of the 32 cases, 28 were corrected successfully by the first operation. Of four cases of postoperative subluxation, three were corrected by the second operation, and one of them was corrected after a third operation. The last patient is currently being followed-up. The mean Lysholm-Tegner score improved to 85.6 after the operation. Conclusion: Correcting all the causes of patella dislocation simultaneously is difficult. Nevertheless, satisfactory outcomes were obtained with soft tissue balancing surgery around the patella and a corrective osteotomy for an abnormal mechanical axis of the femur-tibia and torsion.

Postoperative Complications Associated with Tibial Tuberosity Transposition Surgery for Medial Patellar Luxation in Dogs: 77 Cases (2007-2011) (개에서 내측 슬개골 탈구 교정을 위한 경골 조면 이식술과 관련된 수술 후의 합병증: 77 증례 (2007-2011))

  • Kang, Byung-Jae;Cho, Sungho;Kim, Youngsun;Lee, Seunghoon;Yoon, Daeyoung;Kim, Wan Hee;Kweon, Oh-Kyeong
    • Journal of Veterinary Clinics
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    • v.31 no.1
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    • pp.11-14
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    • 2014
  • This is a retrospective study describing postoperative complication encountered with surgery performed in dogs with medial patellar luxation (MPL). During the 4-year period, 77 operations had been performed in 66 dogs for correction of MPL. The patients were surgically treated with medial soft tissue release, lateral soft tissue tightening, trochlear block recession, and/or tibial tuberosity transposition (TTT). Their prognoses were periodically evaluated for 6 months postoperatively. The failure rate was higher in revision surgery than in the first surgery, and the most common postoperative complication was migration of the tibial tuberosity fragment. The causes for the migration of the tibial tuberosity fragment were identified as the downward insertion of a surgical pin, the eccentric position of an inserted pin in the tibial tuberosity fragment, and blunt angle formation of the tibial tuberosity. It is suggested that the appropriate methods for TTT could minimize complications and lead to a good prognosis.

KNEE: Basic Science and Injury of Bone (슬관절 주위 글격의 기초과학 및 스포츠 손상)

  • Kim Hee-Chun
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.2 no.2
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    • pp.77-81
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    • 2003
  • Purpose: The biomechanics and kinematics of knee joint were reviewed in this article. And then the common sports injuries were presented. Anatomy and Kinetics: None of the pairs of bearing surfaces in the knee joint is exactly congruent This allows the knee six degrees of freedom of motion. Tibiofemoral Kinematics: In flexion and extension, the axis of motion is not perpendicular to the medial-lateral plane of the joint, nor is it perpendicular to the axis of longitudinal rotation. This results in coupled varus angulation and internal rotation with flexion and in valgus angulation and external rotation with extension. Patellofemoral Articulation: Loads across the patellofemoral joint are indirectly related to the angle of knee flexion and directly related to the force generated within the quadriceps mechanism. Fractures of the Patella: Nonoperative treatment is indicated if the extensor mechanism is intact and if displacement of fragment is minimal. The specific type of internal fixation depends on the fracture pattern. It is important to repair retinaculum. Acute and Recurrent Patellar Instability: The degree of dysplasia and the extent of the instability play a large part in determining the success of nonoperative treatment. Patients who experience recurrent dislocations and patients with major anatomic variations require surgery to minimize their instability. Sports Injuries in School-age Atheletes: Patellar pain in young athletes groups a number of conditions, including Idiopathic Adolescent Anterior Knee Pain, Osgood- Schlatter Disease, and Sinding-Larsen-Johansson Disease.

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