• 제목/요약/키워드: orthopedic

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Cut-Through versus Cut-Out: No Easy Way to Predict How Single Lag Screw Design Cephalomedullary Nails Used for Intertrochanteric Hip Fractures Will Fail?

  • Garrett W. Esper;Nina D. Fisher;Utkarsh Anil;Abhishek Ganta;Sanjit R. Konda;Kenneth A. Egol
    • Hip & pelvis
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    • 제35권3호
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    • pp.175-182
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    • 2023

  • Purpose: This study aims to compare patients in whom fixation failure occurred via cut-out (CO) or cut-through (CT) in order to determine patient factors and radiographic parameters that may be predictive of each mechanism. Materials and Methods: This retrospective cohort study includes 18 patients with intertrochanteric (IT) hip fractures (AO/OTA classification 31A1.3) who underwent treatment using a single lag screw design intramedullary nail in whom fixation failure occurred within one year. All patients were reviewed for demographics and radiographic parameters including tip-to-apex distance (TAD), posteromedial calcar continuity, neck-shaft angle, lateral wall thickness, and others. Patients were grouped into cohorts based on the mechanism of failure, either lag screw CO or CT, and a comparison was performed. Results: No differences in demographics, injury details, fracture classifications, or radiographic parameters were observed between CO/CT cohorts. Of note, a similar rate of post-reduction TAD>25 mm (P=0.936) was observed between groups. A higher rate of DEXA (dual energy X-ray absorptiometry) confirmed osteoporosis (25.0% vs. 60.0%) was observed in the CT group, but without significance. Conclusion: The mechanism of CT failure during intramedullary nail fixation of an IT fracture did not show an association with clinical data including patient demographics, reduction accuracy, or radiographic parameters. As reported in previous biomechanical studies, the main predictive factor for patients in whom early failure might occur via the CT effect mechanism may be related to bone quality; however, conduct of larger studies will be required in order to determine whether there is a difference in bone quality.

  • https://doi.org/10.5371/hp.2023.35.3.175 인용 PDF

Does the Toe Out Angle Change the Mechanical Loads at the Knee?

  • Udagawa Kazuhiko;Nagura Takeo;Kiriyama Yoshimori;Otani Toshiro;Matsumoto Hideo;Toyama Yoshiaki
    • 대한정형외과스포츠의학회:학술대회논문집
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    • 대한정형외과스포츠의학회 2004년도 The 7th korea-japan joint meeting of orthopaedic sports medicine
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    • pp.5-5
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    • 2004

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The Treatment of the Floating Shoulder

  • Oh Chang Wug;Jeon In Ho;Kyung Hee Soo;Kim Poong Taek;Ihn Joo Chul;Kim Hoon Woo
    • 대한견주관절학회:학술대회논문집
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    • 대한견주관절학회 2002년도 학술대회
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    • pp.74-75
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    • 2002

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Stabilizing Function of the Biceps in Unstable Shoulders

  • Itoi Eiji;Kido Tadato;Konno Norikazu;Sano Akihisa;Urayama Masakazu;Minagawa Hiroshi;Wakabayashi Ikuko;Kobayashi Moto
    • 대한견주관절학회:학술대회논문집
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    • 대한견주관절학회 2002년도 아시아견관절학술대회
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    • pp.359-363
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    • 2002

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