title: Our experience and early results with a complementary implant for the correction of major thoracic curves.
abstract: OBJECTIVE
  In our article, we would like to introduce a new auxiliary implant called the CAB hook, for use in posterior approach scoliosis surgery.
  
  
  METHODS
  Since 2007, we operated 42 patients with the CAB hook with an average preoperative Cobb angle of 59.3° (28°-92°). In three cases, the posterior approach was preceded by ventral release and Halo traction. In four cases, besides the CAB hooks, SCS hooks and pedicular screws, in three cases both CAB and SCS hooks, in nine cases CAB hooks with SCS pedicular screws, and in 23 cases, only CAB were used. The average follow-up time was 21.6 month (2-51).
  
  
  RESULTS
  All the patients are satisfied with the results. No reoperation was needed due to the loss of correction, pain, implant failure, or infection. The average postoperative Cobb angle decreased to 24.7° (4°-60°). Based on this we calculated the Cincinnati Correction Index (CCI), which was 1.53 (0.7-4.8), which means that our correction exceeded the flexibility of the spine based on the lateral bending X-ray by 53 %.
  
  
  CONCLUSIONS
  As with all new surgical techniques and implants after the short learning curve, we were able to improve the degree of correction and decrease the time of surgery. One of the advantages of the CAB hook is that besides a few implant-specific instruments, no special instrumentation is required for insertion, and image intensifier need not be used.
authors: Department of Orthopaedics, University of Debrecen Medical Health and Science Center, Nagyerdei Krt. 98, Debrecen, 4032, Hungary. csz@dote.hu
authors: Zoltán
authors: Z
authors: Csernátony
authors: László
authors: L
authors: Kiss
authors: Sándor
authors: S
authors: Manó
authors: Zsolt
authors: Z
authors: Hunya
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D005260:Female; D006801:Humans; D016268:Internal Fixators; D008297:Male; D008875:Middle Aged; D012600:Scoliosis / Q000601:surgery*; D013123:Spinal Fusion / Q000295:instrumentation*; D013904:Thoracic Vertebrae / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult
references: Eur Spine J. 2009 Feb;18(2):158-69
references: 19089466
references: Spine (Phila Pa 1976). 2007 Aug 1;32(17):1869-74
references: 17762295
references: Acta Orthop. 2011 Feb;82(1):50-5
references: 21189100
references: Med Hypotheses. 2000 Feb;54(2):203-6
references: 10790753
references: Eur Spine J. 2011 May;20 Suppl 1:S90-4
references: 21404032
references: Rev Chir Orthop Reparatrice Appar Mot. 1984;70(6):489-94
references: 6239334
references: Spine (Phila Pa 1976). 2011 Sep 15;36(20):E1314-21
references: 21738099
references: J Orthop Res. 2011 Dec;29(12):1904-9
references: 21647957
references: J Bone Joint Surg Am. 1962 Jun;44-A:591-610
references: 14036052
references: Spine (Phila Pa 1976). 2000 Mar 1;25(5):606-14
references: 10749638
references: Med Hypotheses. 2002 Jun;58(6):498-502
references: 12323117
references: Orthopade. 1989 Apr;18(2):128-33
references: 2734018
references: Clin Orthop Relat Res. 1988 Feb;227:10-23
references: 3338200
references: J Bone Joint Surg Am. 1983 Dec;65(9):1302-13
references: 6654943
references: Eur Spine J. 2003 Oct;12(5):480-6
references: 12687438
references: J Pediatr Orthop. 2011 Jan-Feb;31(1 Suppl):S114-8
references: 21173613