• Title/Summary/Keyword: Anatomical reconstruction

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Anatomical Reconstruction of the Medial Orbital Wall Fracture (안와내벽골절의 해부학적 복원술)

  • Choi, Woo Kyung;Kang, Dong Hee;Oh, Sang Ah
    • Archives of Craniofacial Surgery
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    • v.13 no.1
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    • pp.29-35
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    • 2012
  • Purpose: In surgical treatment of the medial orbital wall fractures, restoring the original position of the orbital wall is difficult in some cases. Under such condition, the orbital wall is often reconstructed with synthetic material, without bony reduction, which is considered to be the conventional reconstruction. The purpose of this study is to compare the outcomes of anatomical reconstruction, which restores the bony wall to the anatomical position, from that of the conventional reduction in the isolated medial orbital wall fractures. Methods: Thirty patients, who underwent reconstruction surgery for the isolated medial orbital wall fractures from March 2007 to August 2011, were reviewed retrospectively. The surgical outcomes of two groups, the conventional reconstruction group (15 patients) and the anatomical reconstruction group (15 patients), were studied in 2 measurements, a one day before and 6 months after the surgery. The changes of orbital volume were calculated by the images from a computed tomography scan and enophthalmos was measured by a Hertel exophthalmometer. Results: The orbital volume ratio was decreased by an average of 1.05% in the conventional reconstruction group, while in the anatomical reconstruction group, the ratio decreased by 5.90% (p<0.05). The changes in the Hertel scale were 0.20 mm in the conventional reconstruction group, and 0.70 mm in the anatomical reconstruction group. However, the difference in the Hertel scale was statistically insignificant (p>0.05). Conclusion: In conclusion, the anatomical reconstruction technique of the isolated medial orbital wall fracture results in a better outcome than that of the conventional reconstruction, in terms of restoring of the original orbital volume and anatomic position. Thus, it can be considered as a useful method for the isolated medial orbital wall fractures.

Anatomical Reconstruction of the Lateral Ankle Ligaments using Semitendinosus (반건양근 건을 이용한 족관절 외측 인대의 해부학적 재건)

  • Lee, Woo-Chun
    • Journal of Korean Orthopaedic Sports Medicine
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    • v.7 no.1
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    • pp.19-23
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    • 2008
  • Purpose: Several methods of anatomical reconstruction for chronic lateral ankle instability has been reported to avoid the problems of nonanatomical reconstruction. Precise reconstruction of the normal anatomy is essential to the restoration of normal joint mechanics and stability. The problem with anatomical reconstruction is that it is very difficult to reconstruct the normal anatomic course of the ligaments. We thought making one tunnel at the fibular attachment of anterior talofibular ligament and calcaneofibular ligament was more anatomical than making separate tunnels for each ligaments because the two ligaments are contiguous. In this article, the basis of anatomical reconstruction of the lateral ankle ligaments was reviewed and a technique of reconstruction using semitendinosus was introduced.

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The Inferior Orbital Wall Reconstruction by Titanium Micro-mesh Remodeling (Titanium Micro-mesh의 개형을 통한 하벽부 안와골절의 재건)

  • Kim, Han Koo;Choi, Min Seok;Kim, Woo Seob;Bae, Tae Hui
    • Archives of Craniofacial Surgery
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    • v.10 no.2
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    • pp.81-85
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    • 2009
  • Purpose: The inferior orbital wall is the most vulnerable to injury and inadequate reconstruction of inferior orbital fracture result in postoperative complications include enophthalmos, ocular dystopia and diplopia. Although the anatomical reconstruction of the inferior orbital wall is necessary to prevent these complications, the complexity of inferior orbital wall makes it difficult. We fabricated and remodeled the titanium micro-mesh plate for the anatomical reconstruction of inferior orbital wall. Methods: Twenty-nine patients with inferior orbital wall blow-out fracture were operated and twelve of them presented large extensive fracture. We intraoperatively fabricated and remodeled the Titanium-micro mesh to angulated lazy S shape similar to contralateral uninjured orbit. The preoperative and postoperative facial CT scan verified the 3-dimensional and anatomical reconstruction of the fractures. The mean follow-up was 19.7 months and postoperative complications was evaluated. Results: All cases showed the exact anatomical reconstruction, but there were minor complications in two cases. one patient had postoperative diplopia until 3months after surgery and the other patient had persistent enophthalmos (2 mm), but no further surgical correction was required. Conclusion: The comprehensive understanding of orbital convexity is the most important factor for anatomical reconstruction of inferior orbital fracture. We could prevent postoperative complications after inferior orbital wall reconstruction by intraoperative fabrication and anatomical remodeling of Titanium micro-mesh.

Tunnel Position for Anatomical Reconstruction of the Anterior Cruciate Ligament (해부학적 전방십자인대 재건술을 위한 터널의 위치)

  • Lee, Jin Kyu;Yang, Jae-Hyuk
    • Journal of the Korean Orthopaedic Association
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    • v.55 no.4
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    • pp.305-310
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    • 2020
  • The review provides updated concepts regard to the anatomy of the anterior cruciate ligament (ACL) footprints. The concept of anatomical ACL reconstruction, in which the graft is placed in the native ACL insertion area, has been introduced. However, there is still no consensus on the anatomical positioning of the femoral and tibial tunnel. In this study, authors review and update the literature regarding the tunnel position for anatomical ACL reconstruction.

Surgical Treatment of Chronic Lateral Ankle Instability: Repair versus Reconstruction (만성 족관절 외측 불안정성의 수술적 치료: 봉합술과 재건술의 비교)

  • Kim, Keun Soo;Park, Young Uk
    • Journal of Korean Foot and Ankle Society
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    • v.23 no.1
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    • pp.1-5
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    • 2019
  • Surgical treatment to restore stability in the ankle and hindfoot and prevent further degenerative changes may be necessary in cases in which conservative treatment has failed. Anatomical direct repair using native ligament remnants with or without reinforcement of the inferior retinaculum is the so-called gold standard operative strategy for the treatment of lateral ankle instability. Non-anatomical lateral ligament reconstruction typically involves the use of the adjacent peroneus brevis tendon and applies only those with poor-quality ligaments. On the other hand, anatomic reconstruction and anatomic repair provide better functional outcomes after the surgical treatment of chronic ankle instability patients compared to a non-anatomic reconstruction. Anatomical reconstruction using an autograft or allograft applies to patients with insufficient ligament remnants to fashion direct repair, failed previous lateral ankle repair, high body mass index, or generalized ligamentous laxity. These procedures can provide good-to-excellent short-term outcomes. Arthroscopic ligament repair is becoming increasingly popular because it is minimally invasive. Good-to-excellent clinical outcomes have been reported after short and long-term follow-up, despite the relatively large number of complications, including nerve damage, reported following the procedure. Therefore, further investigation will be needed before widespread adoption is advocated.

Reconstruction for Chronic Lateral Instability of the Ankle by Chen Method (Chen 술식을 이용한 족근관절의 만성 외측 불안정에 대한 재건술)

  • Lee, Gi-Haeng;Yoo, Jong-Min;Na, Gee-Tae;Kong, Yoon-Bae;Chu, In-Tak
    • Journal of Korean Foot and Ankle Society
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    • v.14 no.1
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    • pp.53-57
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    • 2010
  • Purpose: This study was designed to evaluate the clinical and radiographical results of anatomical reconstruction by Chen method for chronic lateral ankle instability. Materials and Methods: Fifteen patients with chronic lateral ankle instability who had undergone anatomical reconstruction of anterior talofibular and calcaneofibular ligaments by Chen method were evaluated retrospectively. Average age of the patients was 31.3 years, and average follow-up period was 15.5 months. Preoperative and postoperative radiographs including varus stress view and magnetic resonance imaging (MRI) were analyzed. The clinical evaluation was performed according to the American Orthopaedic Foot and Ankle Society (AOFAS) scale. Results: Radiographically average talar tilt angle was $15.3^{\circ}$ preoperatively, and the difference with contralateral normal side was $10.1^{\circ}$. At last follow up, talar tile angle and the difference with contralateral side improved to $5.9^{\circ}$ and $1.3^{\circ}$ respectively. AOFAS scale was 66.6 preoperatively and 87.3 postoperatively. In MRI findings, four patients had associated intra-articular lesion such as articular cartilage defect, synovitis and osteoarthritis. The talar tilt angle improvement and AOFAS scale of patients without intra-articular lesion was better than those of four patients with intra-articular lesions. Surgical wound pain occurred in six patients and sural neuropathy in three patients. Conclusion: The anatomical reconstruction by Chen method was an easy and effective procedure for symptomatic chronic lateral ankle instability. Careful operative technique may prevent the surgical wound pain and sural neuropathy.

Minimal Ablation of the Tibial Stump Using Bony Landmarks Improved Stability and Synovial Coverage Following Double-Bundle Anterior Cruciate Ligament Reconstruction

  • Kodama, Yuya;Furumatsu, Takayuki;Hino, Tomohito;Kamatsuki, Yusuke;Ozaki, Toshifumi
    • Knee surgery & related research
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    • v.30 no.4
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    • pp.348-355
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    • 2018
  • Purpose: To evaluate the clinical effects of using anatomical bony landmarks (Parsons' knob and the medial intercondylar ridge) and minimal ablation of the tibial footprint to improve knee anterior instability and synovial graft coverage after double-bundle anterior cruciate ligament reconstruction. Materials and Methods: We performed a retrospective comparison of outcomes between patients who underwent reconstruction with minimal ablation of the tibial footprint, using an anatomical tibial bony landmark technique, and those who underwent reconstruction with wide ablation of the tibial footprint. Differences between the two groups were evaluated using second-look arthroscopy, radiological assessment of the tunnel position, postoperative anterior knee joint laxity, and clinical outcomes. Results: Use of the anatomical reference and minimal ablation of the tibial footprint resulted in a more anterior positioning of the tibial tunnel, with greater synovial coverage of the graft postoperatively (p=0.01), and improved anterior stability of the knee on second-look arthroscopy. Both groups had comparable clinical outcomes. Conclusions: Use of anatomical tibial bony landmarks that resulted in a more anteromedial tibial tunnel position improved anterior knee laxity, and minimal ablation improved synovial coverage of the graft; however, it did not significantly improve subjective and functional short-term outcomes.

Surgical Procedures for Chronic Lateral Ankle Instability (만성 외측 발목 불안정증의 수술적 치료)

  • Young, Ki Won;Lee, Hong Seop;Hwang, Ji Sun
    • Journal of Korean Foot and Ankle Society
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    • v.25 no.1
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    • pp.17-24
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    • 2021
  • Surgical treatments for chronic lateral ankle instability include anatomic repair, anatomic reconstruction using an auto or allograft, non-anatomic reconstruction, and arthroscopic repair. Open anatomic repair using the native ligament with or without reinforcement of the inferior extensor retinaculum is commonly performed in patients with sufficient ligament quality. Non-anatomical reconstruction using the adjacent peroneus brevis tendon is typically used only in patients with poor-quality ligament remnants or when previous repair failed. Anatomical reconstruction can be considered in patients in whom anatomical repair is expected to fail and when performed using auto or allografts can provide good to excellent short-term results, although the long-term outcomes of these methods remain unclear. Arthroscopic repair can provide good to excellent short-term clinical outcomes, but evidence supporting this technique is limited. The advantages and disadvantages of various surgical methods should be compared, and appropriate treatment should be implemented based on patient characteristics.

Anatomical Review of Fibular Composite Free Flap for Oral and Maxillofacial Reconstruction (구강악안면재건을 위한 비골복합유리피판의 해부학적 고찰)

  • Kim, Soung Min;Cao, Hua Lian;Seo, Mi Hyun;Myoung, Hoon;Lee, Jong Ho
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.35 no.6
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    • pp.437-447
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    • 2013
  • The fibula is one of the most useful sources for harvest of a vascularized bone graft. The fibula is a straight, long, tubed bone, much stronger than any other available bone that can currently be used for a vascularized graft. It has a reliable peroneal vascular pedicle with a large diameter and moderate length. There is a definite nutrient artery that enters the medullary cavity, as well as multiple arcade vessels, which add to the supply of the bone through periosteal circulation. The vascularized fibula graft is used mainly for long segment defects of the long tubed bone of the upper and lower extremities. It can provide a long, straight length up to 25 cm in an adult. The fibula can be easily osteotomized and can be used in reconstruction of the curved mandible. Since the first description as a vascularized free fibula bone graft by Taylor in 1975 and as a mandibular reconstruction by Hidalgo in 1989, the fibula has continued to replace the bone and soft tissue reconstruction options in the field of maxillofacial reconstruction. For the better understanding of a fibular free flap, the constant anatomical findings must be learned and memorized by young doctors during the specialized training course for the Korean National Board of Oral and Maxillofacial Surgery. This article reviews the anatomical basis of a fibular free flap with Korean language.