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Comparative Study Between Pedicle Subtraction Osteotomy (PSO) and Closing-Opening Wedge Osteotomy (Fish-mouth PSO) for Sagittal Plane Deformity Correction


, : Comparative Study Between Pedicle Subtraction Osteotomy (PSO) and Closing-Opening Wedge Osteotomy (Fish-mouth PSO) for Sagittal Plane Deformity Correction. Spine (): -

A retrospective study. To evaluate the safety and efficacy of closing-opening wedge osteotomy (COWO: fish-mouth pedicle subtraction osteotomy [PSO]), for sagittal plane deformity correction and to compare the radiographical outcomes for patients undergoing conventional- and fish-mouth PSO. The COWO has been developed to achieve a large magnitude of correction at a single level for patients with severe fixed sagittal imbalance. We retrospectively reviewed the medical records and the radiographs of patients who underwent PSO by a single surgeon between June 2012 and December 2015. Forty patients were included and were divided into 2 groups according to surgical technique (fish-mouth- versus conventional PSO group). Radiographical measurements included pelvic incidence (PI), thoracic kyphosis (TK), lumbar lordosis (LL), global kyphosis (GK), sagittal vertical axis (SVA), osteotomized vertebra angle (OVA), and the height of the osteotomized vertebra (HOV). The preoperative, immediate postoperative, ultimate follow-up and correction of TK, LL, TLJ, and SVA did not show significant differences between the groups. Preoperative GK and OVA were significantly larger in fish-mouth group (GK: 47.1 ± 28.8° versus 23.7 ± 16.0°, P < 0.05 and OVA: 31.7 ± 14.5° versus 9.0 ± 11.4°, P < 0.05). The correction of GK and OVA were significantly larger in fish-mouth PSO group (GK: 48.8 ± 24.5° versus 34.8 ± 17.4°, P < 0.05 and OVA: 42.9° versus 25.0°, P < 0.05). Preoperative HOV between the groups was not significantly different, however, postoperative HOV was significantly greater in fish-mouth PSO group (2.3 cm versus 1.7 cm, P < 0.05). Postoperative transient paraparesis occurred in 3 (20%) and 6 (24%) patients of fish-mouth PSO and PSO group, respectively. Fish-mouth PSO can provide a larger magnitude of correction comparing to classic PSO without compromising spinal cord function for fixed sagittal plane deformity. 3.

US$19.90

PMID: 27922572

DOI: 10.1097/BRS.0000000000002007


Other references

Bergher D.B.calao E.; Marrero Perez R.; Jorgez A.; Uzcategui O.; Zambrano O.; Sczcedrin W., 1968: Results from routine exfoliative cytology performed on patients attending a family planning service. Revista de Obstetricia y Ginecologia de Venezuela 28(4): 559-564

Tachikawa, H., 2011: Electron capture dynamics of a water molecule connected to a cyclic water trimer: a direct ab initio MD approach. Electron capture dynamics of the water tetramer (H(2)O)(n) (n = 4) have been investigated by means of a full-dimensional direct ab initio molecular dynamics (MD) method at the MP2/6-311++G(d,p) level. Two structural conformers (branched and cyclic...

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Khawas, B., 1970: An x-ray study of L-isoleucine. Acta Crystallographica. Section B: Structural Crystallography and Crystal Chemistry 26(9): 1385-1387

Li, Z.; Wang, Y.; Zhao, X.; Liu, L.; Wang, D.; Wang, C.; Meng, X.; Li, H.; Pan, Y.; Wang, X.; Wang, C.; Yang, X.; Zhang, C.; Jing, J.; Xian, Y.; Johnston, S.Claiborne.; Wang, Y., 2016: Treatment Effect of Clopidogrel Plus Aspirin Within 12 Hours of Acute Minor Stroke or Transient Ischemic Attack. The aim of this study was to analyze the benefits and safety associated with the combination therapy of clopidogrel and aspirin among minor stroke or transient ischemic attack patients treated within 12 hours. This was a subanalysis of the CHANCE...

Jinggut, T.; Yule, C.M.; Boyero, L., 2013: Stream ecosystem integrity is impaired by logging and shifting agriculture in a global megadiversity center (Sarawak, Borneo). In common with most of Borneo, the Bakun region of Sarawak is currently subject to heavy deforestation mainly due to logging and, to a lesser extent, traditional slash-and-burn farming practices. This has the potential to affect stream ecosystems,...

Rosen, N., 2008: French-Algonquian interaction in Canada: A Michif case study. This paper discusses the language contact situation between Algonquian languages and French in Canada. Michif, a French-Plains Cree mixed language, is used as a case study for linguistic results of language contact. The paper describes the phonolo...

Cohen, M.A.; Bender, S.; Struthers, P.J., 1984: Hodgkin's disease of the jaws. Review of the literature and report of a case. Hodgkin's disease of the jaws is extremely rare. A review of the literature has revealed only seven previously reported cases, five in the mandible and two in the maxilla. A new case of Hodgkin's disease of the mandible is reported. The...

Platt, R.; Rosner, B., 1984: Effect of hydrogen ion and protein concentrations on the activity of beta-lactam antibiotics. The susceptibility of 50 isolates of Staphylococcus aureus to seven beta-lactam antibiotics was measured under four conditions, involving two pH values and the presence or absence of serum protein. Multiple linear regression analysis was used to d...

Vinogradova I.M., 1988: Hyaluronidase effect on the quantum content and binomial p and n parameters of neuromuscular transmission in frogs. In the frog dermo-sternal muscle hyaluronidase (0.01-0.1%) caused e.p.p. amplitude and quantum content of transmission to fall when acting in a solution containing I mM Ca2+ and 4 mM Mg2+. The change in the quantum content was related to a decreas...