Optimal three-dimensional correction of idiopathic scoliosis

• Autorzy: Kotwicki T. , Marciniak W.
• Języki publikacji: EN

Abstrakty

EN

We have reviewed the standing position antero-posterior and lateral radiographs of 64 children operated on for juvenile or adolescent idiopathic scoliosis. Twenty five patients had Cotrel-Dubousset posterior instrumentation, twenty one were corrected with Pouliquen anterior plate and twenty one with Harrington distraction rod. The transversal plane of the spine was visualised by computer reconstruction using sonic digitizer GP-9 and the programme Rachis. The following parameters were compared: Cobb angle, Perdriolle angle of vertebral rotation, apical vertebra transposition. Transversal plane reconstruction images were also compared. The results showed better 3-D correction in Cotrel-Dubousset technique over the Harrington technique. This concerned Cobb angle and apical vertebra transposition but not the vertebral rotation. The anterior instrumentation gave the best correction in each of the three planes. In particular, the vertebral rotation was significantly diminished with anterior technique. The results were also confirmed by computer reconstruction of the transversal plane of the spine. The authors conclude that vertebral derotation can hardly be achieved with posterior spinal techniques, regardless of the type of instrumentation applied. Following the biomechanical analysis of the spatial displacement of each vertebra of the scoliotic curve after operation, a complex movement of the.corrected spine can be evaluated.

Słowa kluczowe

EN

three-dimensional correction; scoliosis

PL

korekcja trójwymiarowa; skolioza

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Engineering Transactions
• Rocznik: 2001
• Tom: Vol.49, iss.2/3
• Strony: 431--436
• Opis fizyczny: Bibliogr. 9 poz. rys., rab.

Twórcy

autor

Kotwicki T.

• Department of Pediatric Orthopedics, University of Medical Sciences, Poznań Ul. 28 Czerwca 1956 no 135, 61-545 Poznań, Poland

autor

Marciniak W.

• Department of Pediatric Orthopedics, University of Medical Sciences, Poznań Ul. 28 Czerwca 1956 no 135, 61-545 Poznań, Poland

Bibliografia

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• 3. P. L. HARRINGTON, Treatment of scoliosis. Correction and internal fixation by spine instru- mentation, J. Bone Joint Surg., 44-A,591, 1962.
• 4. J. HECQUET, Rachis 91TM, Manuel operatoire, Paris 1997.
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• 6. J. C. POULIQUEN, P. RIGAULT, J. P. PADOVANI, J. BENEUX, G. F. PENNE90T, G. GUYONVARCH, Redressement par plaque des scolioses, Resultats de 99 cas vus avec recul. Rev. Chir. Orthop., 70, 93-108, 1984.
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• 8. J. J. TELEGA, T. LEKSZYCKI, Bone remodeling and adaptation of bones: models and numer­ ical solutions [in Polish], Workshop of "Biomechanics of Skeletal System", I.F.T.R. Polish Acad. of Sci., Warszawa 21-22.05, 1999.
• 9. D. TYLMAN, Mechanics of scoliosis [in Polish], Severus, Warszawa 1995.