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Year : 2012  |  Volume : 2  |  Issue : 2  |  Page : 83-90

Comparative study between Moss-Miami pedicle screw system and Hartshill rectangle for lumbar spondylolisthesis

1 Department of Orthopedics, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune, Maharashtra, India
2 MIMER Medical College, Talegaon, Pune, Maharashtra, India

Correspondence Address:
Ajit Swamy
Department of Orthopedics, Dr. D. Y. Patil Medical College, Hospital and Research Centre, Pimpri, Pune - 411 018, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-9596.110031

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Background: Many different treatment modalities have been advocated by different authors from time to time for lumbar spondylolisthesis. The principle underlying surgery includes stabilization of the slipping vertebrae. Various operative methods encompassing this principle include posterior interbody fusion, posterior stabilization, facet joint fusion, posterolateral fusion, excision of loose segment, and anterior interbody fusion. The objective of this study was to compare Moss-Miami pedicle screw system with Hartshill rectangle in the management of isthmic and degenerative lumbar spondylolisthesis. Materials and Methods: A prospective study was carried out to compare clinical and radiological outcomes between Moss-Miami pedicle screw fixation with facet joint fusion and Hartshill rectangle fixation with facet joint fusion after adequate decompression for Isthmic and Degenerative Lumbar spondylolisthesis. All patients of spondylolisthesis as per inclusion criteria admitted undergoing decompression, posterior stabilization, and facet fusion during the period 2009-2011 in D.Y. Patil Medical College, Pimpri, Pune were included in the study. Results: A total of twenty patients were included with mean age 47.15 years. Fifteen were females and five males. Seven females and three males underwent Moss-Miami pedicular fixation and eight females and two males underwent Hartshill fixation. Oswestry disability scoring (ODS) scores of the two groups was 4.25 and 4.23 respectively at the end of 12 months. Patients in both the groups improved significantly as assessed by the ODS system. Conclusions: Our results show that both the Moss-Miami Pedicle screw fixation and Hartshill rectangle fixation were of similar benefit as regards the stabilization of the lumbar spine.

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