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A Novel Technique for Pars Defect Direct Repair with a Modified Smiley Face Rod for Spondylolysis and Isthmic Spondylolisthesis.
Tatsumura, Masaki; Okuwaki, Shun; Gamada, Hisarnori; Asai, Reo; Eto, Fumihiko; Nagashima, Katsuya; Takeuchi, Yosuke; Funayama, Toru; Yamazaki, Masashi.
Afiliación
  • Tatsumura M; Department of Orthopaedic Surgery and Sports Medicine, Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, Mito, Japan.
  • Okuwaki S; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
  • Gamada H; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
  • Asai R; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
  • Eto F; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
  • Nagashima K; Department of Orthopaedic Surgery and Sports Medicine, Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, Mito, Japan.
  • Takeuchi Y; Department of Orthopaedic Surgery and Sports Medicine, Tsukuba University Hospital Mito Clinical Education and Training Center, Mito Kyodo General Hospital, Mito, Japan.
  • Funayama T; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
  • Yamazaki M; Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, Tsukuba, Japan.
Spine Surg Relat Res ; 7(4): 396-401, 2023 Jul 27.
Article en En | MEDLINE | ID: mdl-37636143
Introduction: Lumbar spondylolysis is a common fatigue fracture of the pars interarticularis of the lamina of the lumbar spine in adolescent athletes presenting with pars clefts. Some pseudarthrotic lumbar spondylolysis causes low back pain or radiculopathy. This study presents a case of pseudarthrotic lumbar spondylolysis that was successfully treated using a modified smiley face rod technique. Technical Note: We developed a modified smiley face rod technique, which places pedicle screws in the lateral edge of the pedicle to preserve the erector spinae muscles and inserts a U-shaped rod between the spinous processes to preserve the supraspinous ligament. When a U-shaped rod penetrates the interspinous ligament subcutaneously, the resection of the supraspinous ligaments can be avoided. When the screw head is positioned more anterolaterally, a compression force is applied perpendicular to the surface of the pars cleft by rod clamping. This intrasegmental fusion technique preserves the mobile segment and simultaneously repairs the pars cleft. It is less invasive and more appropriate than interbody fusion for young athletes to avoid the possibility of future adjacent segment disorders. Conclusions: This is a minimally invasive procedure that can easily achieve bone fusion and should be introduced for patients who are suffering from the symptoms of pseudarthrotic lumbar spondylolysis.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spine Surg Relat Res Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Spine Surg Relat Res Año: 2023 Tipo del documento: Article País de afiliación: Japón Pais de publicación: Japón