scholarly journals RESULTS OF SURGICAL TREATMENT OF INFANTILE AND JUVENILE SCOLIOSIS USING VARIOUS INSTRUMENTATION

2015 ◽  
Vol 14 (1) ◽  
pp. 51-59
Author(s):  
M. V. Mikhailovsky ◽  
V. A. Suzdalov ◽  
D. N. Dolotin ◽  
I. G. Udalova
Keyword(s):  
Surgical Treatment ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Scoliotic Curve ◽  
Average Value ◽  
Group I ◽  
Juvenile Scoliosis ◽  
Congenital Kyphosis ◽  
Group Ii

Introduction. The analysis Results of surgical treatment of growing children with infantile and juvenile scoliosis (IS) can the optimal method of treatment select. In young children with significant growth potential spinal fusion may not be the best option as it limits further longitudinal growth of the spine and may to the thoracic insufficiency syndrome result. To address this problem recently several techniques focused, their have advantages and drawbacks.Material and methods. Since 2008 year 127 patients (64 girls, 63 boys) aged (4.5 ± 2.1) years were operated on. In group I 65 patients were operated on using VEPTR (Vertical Expandable Prosthetic Titanium Rib) instrumentation, in group II 42 patients using various spinal instrumentation. 20 patients with congenital kyphosis were excluded. The average follow-up time was (5.6 ± 1.1) years.Results. In group I average value of the primary scoliotic curve before surgery was (74.7 ± 22.9), secondary curve (42.8 ± 16.0), thoracic kyphosis (46.3 ± 27.4), lumbar lordosis (54.6 ± 14). Average value of the primary scoliotic curve after surgery was reduced to (51 ± 20) (correction 31.7%), at followup to (56.5 ± 18.5), secondary curve (31.8 ± 12.8) (25.7%), at follow-up to (32.4 ± 18.4), thoracic kyphosis (36.8 ± 20.8) (20,5%), at follow-up to (41.8 ± 21.0), lumbar lordosis (45.4 ± 12.7) (16,9%), at follow-up to (48.2 ± 11.7) (p < 0.05). Space available for lung before surgery was (84.5 ± 8.7) %, after surgery was (94.8 ± 6.7)%, at follow-up increased to (98.6 ± 5.4) % (p < 0.05). Complications included 11 implant dislocations and 1 infection. In group II average value of the primary scoliotic curve before surgery was (87.6 ± 6.6), secondary curve (47.8 ± 4.6), thoracic kyphosis (61.4 ± 10.4), lumbar lordosis (61.8 ± 4.9). Average value of the primary scoliotic curve after surgery was reduced to 50.6 ± 5.3 (correction 42.3%), at follow-up to (66.1 ± 6.3), secondary curve (24.1 ± 2.9) (49.6%), at follow-up to (37 ± 5.4), thoracic kyphosis (38.8 ± 7.7) (36.8%), at follow-up to (59.4 ± 11.2), lumbar lordosis (47.5 ± 4.1) (23.2%), at follow-up to (64.5 ± 4.5) (p < 0.05). Complications included 23 implant dislocations and 1 infection. No neurological complications.Conclusion. Stage correction fusions using various instrumentation is a method of choice for controlled correction of growing children with IS.

Evolving Solutions in the Surgical Treatment of Isolated Pulmonary Valve Stenosis

2021 ◽  
Author(s):  
Sonia B. Albanese Albanese
Keyword(s):  
Surgical Treatment ◽  
Pressure Gradient ◽  
Pulmonary Valve ◽  
Balloon Valvuloplasty ◽  
Pulmonary Valve Stenosis ◽  
Group I ◽  
Mean Pressure ◽  
Valve Function ◽  
Group Ii

Background: Surgical treatment of isolated pulmonary valve stenosis in infants and children has evolved over the years, shifting from the original exclusive aim at lowering right ventricle pressure to the current concomitant focus on preserving pulmonary valve function. In our study, we sought to analyze the effect of such evolving philosophy on long-term results. Methods: All consecutive patients treated in our center between July 1983 and March 2019 were included. Patients were categorized into 2 groups based on the introduction into treatment practice of sparing valve techniques (1995). Actuarial survival, freedom from reintervention on the right outflow tract, transvalvular mean pressure gradient decrease, and pulmonary valve function at follow-up were analyzed. Results: One hundred twenty-three patients operated before (Group I, n=81) or since (Group II, n=42) 1995 were enrolled in the study. Mean age and weight were 3.0 ± 0.36 years and 16.6 ± 1.7kg, respectively. Early mortality occurred exclusively in 3 patients of Group 1. Transvalvular mean pressure gradient decreased in the entire patient population (from 63.28 ± 12.9mmHg to 16.46 ± 7.9mmHg). At a mean follow-up interval of 4.9 ± 33 years, freedom from death was comparable, but freedom from right ventricular outflow tract reintervention was significantly greater in Group II. Although the transvalvular gradient remained stable over time in non-reoperated survivors (mean value of 16.46 ± 7.9mmHg), pulmonary valve function on 2D-Echo showed severe incompetence in 2 patients of Group I and just mild to moderate incompetence in 20 patients of Group II, with a significantly negative effect of unsuccessful preoperative pulmonary balloon valvuloplasty (14/20 vs 6/20, p=0.025) in the latter. Conclusion: Current pulmonary valve sparing techniques are associated with better results, particularly in terms of freedom from re-interventions and pulmonary valve function at follow-up. Balloon valvuloplasty prior to surgery may worsen operative results, promoting pulmonary insufficiency and therefore should probably be avoided in all patients in whom anatomical characteristics predict failure of percutaneous therapy.

Surgical Treatment of Moderate Hallux Valgus: A Comparison of Distal Chevron Metatarsal Osteotomy With and Without Lateral Soft-Tissue Release

2017 ◽  
Vol 10 (6) ◽  
pp. 524-530 ◽  
Author(s):  
Maki Grle ◽  
Goran Vrgoc ◽  
Ivan Bohacek ◽  
Vladimir Hohnjec ◽  
Marko Martinac ◽  
...  
Keyword(s):  
Patient Satisfaction ◽  
Surgical Treatment ◽  
Soft Tissue ◽  
Hallux Valgus ◽  
Soft Tissue Release ◽  
Metatarsal Osteotomy ◽  
Group I ◽  
Group Ii ◽  
Surgical Treatments

Purpose: The purpose of the study was to determine whether lateral soft-tissue release (LSTR) has a beneficial or detrimental effect on the outcome of distal Chevron first metatarsal osteotomy (DCMO) in the treatment of moderate hallux valgus (HV). Methods: We compared the effect of different surgical treatments in 2 groups of patients: group I (23 patients, 25 feet, average age of 55 [from 43 to 77] years) was subjected to DCMO only, whereas group II (18 patients, 23 feet, average age of 59 [from 52 to 70] years]) was subjected to DCMO with LSTR. The American Orthopaedic Foot and Ankle Society’s Hallux Metatarsophalangeal-Interphalangeal scale survey was conducted postoperatively, followed by the brief survey on postoperative patient satisfaction. The patient follow-up period was from 18 to 24 months after surgical treatment, on average. Results: After surgical intervention, both groups of patients presented with an improved HV angle, but there was no significant difference between the groups. However, group II showed significant improvements in medial sesamoid bone position and patient satisfaction scores as compared with group I. Conclusion: Our midterm follow-up of surgical treatments for moderate HV deformity suggests that both procedures provide good postoperative results. However, according to our results, DCMO with LSTR provides better results than procedures without LSTR. Levels of Evidence: Therapeutic, Level III: Retrospective comparative study

scholarly journals Analysis of postoperative strokes in patients after resection or suturing of the left atrial appendage

EP Europace ◽  
2021 ◽  
Vol 23 (Supplement_3) ◽  
Author(s):  
D Volkov ◽  
D Gorbunov ◽  
A Anohina ◽  
E Shulga ◽  
D Rygalov ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Cerebral Circulation ◽  
Myocardial Revascularization ◽  
Functional Class ◽  
Cardiac Pathology ◽  
Group Iii ◽  
Group I ◽  
Blood Clots ◽  
Group Ii

Abstract Funding Acknowledgements Type of funding sources: None. Introduction In 30%, the cause of strokes is AF. 90% of cases, thromboembolism occurs in the cerebral arteries, condemning the patient not only to disability, but also to death. Considering that the formation of blood clots occurs in hemodynamically inactive areas of the LA, which is the apendege of the LA, it is advisable to combine surgical treatment of AF with its exclusion from systemic blood flow. Purpose Analyze the frequency of strokes in the follow up period in patients who have undergone surgical treatment of AF in combination with LAA resection. Materials and Methods 364 patients were divided into 3 groups depending on the volume of operative treatment and the rhythm of the controlling strategy, 105 dropped out of the study due to the lack of data collection capability. • Group I included 80 patients who underwent surgical AF treatment with LAA resection combined with valvular pathology correction or myocardial revascularization. Lethal outcome in this group was recorded in 6 (7.5%) patients caused by non-cardiac pathology. Surgical treatment of AF was performed by MAZE IV and left side MAZE. •  Group II - 140 people who performed valve pathology correction, without surgical treatment of AF and without LAA resection. • Group III included 39 patients with a persistent form of AF who performed only LAA resection in combination with correction with another cardiac pathology. Group II and III mortality were 23 patients. All patients in group I and III underwent LAA resection to exclude a possible source of blood clots. The stump was sutured with a continuous two-row suture on the base up to 2 mm from the LA wall. After 36 months, patients from group I underwent echocardiography, electrocardiography, Holter monitoring, and a cardiologist examination. Group II and III analyses were performed by patient telemetry. Results • Long-term three-year results showed complete 100% freedom from acute cerebral circulation disorder in group I, where surgical treatment of AF was performed in combination with LAA resection; • In group I with a persistent form of AF without LAA resection - acute cerebral circulation disorder occurred in 36 patients, which was 28.8%; • In group III with permanent fibrillation with LAA resection, of the 31 patients, thromboembolic complication occurred in 4 patients (12.9%). It is worth noting that after surgery in the distant period, patients of group I increased the average value of the ejection fraction by 4%, decreased volumes of the LA, and the functional class on NYHA changed from III to II, I. Conclusion The study performed the highest degree of absence of stroke in group I in early and follow up period. First of all, this is due to a comprehensive approach to the treatment of cardiac pathology, the preservation of sinus rhythm and LAA resection. Which, in addition to absence of stroke, leads to an improvement in the quality of life and a decrease in the functional class of heart failure.

Surgical Treatment of Clubfoot: A Comparison of Two Techniques

Foot & Ankle ◽  
1992 ◽  
Vol 13 (3) ◽  
pp. 116-124 ◽  
Author(s):  
Prasit Nimityongskul ◽  
Lewis D. Anderson ◽  
Donald E. Herbert
Keyword(s):  
Surgical Treatment ◽  
Functional Result ◽  
Skin Flap ◽  
Flap Necrosis ◽  
Secondary Procedure ◽  
Group I ◽  
Metatarsus Adductus ◽  
Group Ii ◽  
Skin Flap Necrosis

Between 1977 and 1989, 28 clubfeet were operated on, with follow-up ranging from 2 to 13 ½ years and averaging 79 months. Group I (16 feet; average follow-up 104 months) underwent a modified Turco's posteromedial release. The functional result in this group was satisfactory in general, but approximately one third of this group required a secondary procedure for persistent intoeing or residual metatarsus adductus. Group II (12 feet; average follow-up 45 months) underwent a modified, complete subtalar release of McKay and Simons utilizing the Cincinnati incision. No patient in this second group required a secondary procedure. In our experience, the more complete subtalar release procedure of McKay and Simons resulted in better correction than the Turco posteromedial release. Although follow-up in group II was much shorter than that in group I, we felt that 2 years of minimum follow-up in group II was meaningful, since most of the recurrence or residual deformities were noticed within 18 months after surgery. The Cincinnati incision allowed better exposure and a more complete release. Skin flap necrosis was not a problem in this series.

Cortical Bone Trajectory Pedicle Screw Fixation in Surgical Treatment of Monosegmental Pyogenic Lumbar Spondylodiskitis

2021 ◽  
Author(s):  
Jae-Hyuk Shin ◽  
Sang-II Kim ◽  
Jiyoung Jung ◽  
Kee-Won Rhyu
Keyword(s):  
Surgical Treatment ◽  
Bone Graft ◽  
Pedicle Screw ◽  
Screw Fixation ◽  
Pedicle Screw Fixation ◽  
Group I ◽  
Vas Scores ◽  
Group Ii ◽  
Segmental Lordosis

Abstract Background and Study Object Pedicle screw fixation has been widely used in surgical treatment for infective lumbar spondylodiskitis to prevent instability and deformity. The cortical bone trajectory pedicle screw (CBTPS) fixation is a minimally invasive posterior spinal fixation system that runs from the pedicle's entry point of the caudiomedial region toward the cephalad-divergent direction. Successful results with CBTPS fixation have been reported to treat degenerative and osteoporotic spinal diseases. This study aims to investigate the clinical feasibility of CBTPS in the surgical treatment of pyogenic lumbar spondylodiskitis. Patient and Methods We retrospectively retrieved 20 consecutive patients from two academic centers who were surgically treated for monosegmental lumbar pyogenic spondylodiskitis. The primary surgical treatment was the anterior lumbar interbody fusion with decompression, debridement, and reconstruction using an autogenous iliac strut bone graft. One to 2 weeks after the primary surgery, patients underwent a second surgery for posterior instrumentation using conventional pedicle screws (CPS; group I) and CBTPS (group II). Radiographic parameters of the deformity angle at the fusion segment and clinical parameter of visual analog scale (VAS) scores were assessed preoperatively, postoperatively, and at the last follow-up. Results There were 10 patients in each group. The mean follow-up periods of groups I and II were 51.10 ± 6.95 and 28.60 ± 9.31 months, respectively. Intergroup analysis indicated the two groups area age-matched (p = 0.38), but initial C-reactive protein (CRP; mg/dL, p = 0.04), CRP normalization (months, p = 0.00), and follow-up duration (months, p = 0.00) were heterogeneous. Meanwhile, deformity angles (segmental lordosis) between the two groups were not significantly different preoperatively (p = 0.25), postoperatively (p = 0.13), and at last follow-up (p = 0.38). The intragroup analysis indicated a significant postoperative increase of lordosis in both group I and II (p = 0.00 and 0.04, respectively) with subsequent subsidence. Lordosis remained increased at the last follow-up with or without significance (group I, p = 0.02; group II, p = 0.62). Both groups showed significant improvement in VAS scores (group I, p = 0.00; group II, p = 0.00). Conclusion In monosegmental lumbar spondylodiskitis, posterior stabilization of the anterior strut bone graft by CBTPS and CPS was comparable via the radiographic parameter of segmental lordosis or deformity angle. Our observation suggests the clinical feasibility of CBTPS in the treatment of relatively mild monosegmental pyogenic lumbar spondylodiskitis.

scholarly journals RADIOLOGICAL AND OPTICAL METHODS FOR ASSESSING THE SPINO-PELVIC RELATIONSHIPS IN PATIENTS WITH CONGENITAL HIP DISLOCATION

2019 ◽  
Vol 16 (1) ◽  
pp. 63-69
Author(s):  
L. S. Shnaider ◽  
V. N. Sarnadsky ◽  
V. V. Pavlov
Keyword(s):  
Lumbar Lordosis ◽  
Sagittal Plane ◽  
Corrective Osteotomy ◽  
Hip Dislocation ◽  
Optical Methods ◽  
Sacral Slope ◽  
Congenital Hip Dislocation ◽  
Average Value ◽  
Group I ◽  
Group Ii

Objective. To determine the correlation between the data of sagittal radiography of the spine and computer optical topography (COMOT) results.Material and Methods. The study included 47 patients (5 men, 42 women) who underwent the treatment for hip dysplasia in 2010–2018. The patients were divided into two groups: Group I included 26 patients with unilateral congenital hip dislocation, and Group II – 21 patients with bilateral dislocation. All patients underwent hip replacement with corrective osteotomy.Results. An average value of the sacral slope was 46.4° ± 9.9°, which reflects the excessive sacral slope and exceeds the norm (39.6° ± 7.9°) by 10° in cases of maximum values. Global lumbar lordosis has an average value of 64.1° ± 13.5° and directly depends on the sacral slope. The COMOT parameters showed that physiological curves were less pronounced in patients of Group I (the height of the lumbar lordosis (HIL), 2.4 ± 0,7 sm, the height of the thoracic kyphosis (HIK), 2.7 ± 0.6 sm) than in patients of Group II (HIL, 3.0 ± 0.5 sm, HIK, 3.2 ± 0.5 sm). In Group II, there was an excessive inclination of the sacrum anteriorly (-33.9° ± 4.5°). In both groups, anterior torso inclination was observed, with greater statistical differences in Group I than in Group II: in Group I, the anterior inclination was -3.5° ± 3.6°, in Group II, -0.4° ± 2.7°.Conclusion. The average correlation was found only between the parameters of the sacral slope and the integral index of the posture state in the sagittal plane (r = 0.513); in all other cases, only a moderate correlation was found.

Comparative Assessment of Autogenous Cancellous Bone Graft and Bovine-Derived Demineralized Bone Matrix for Secondary Alveolar Bone Grafting in Patients With Unilateral Cleft Lip and Palate

2021 ◽  
pp. 105566562110251
Author(s):  
Vijay Kumar ◽  
Vidya Rattan ◽  
Sachin Rai ◽  
Satinder Pal Singh ◽  
Jai Kumar Mahajan
Keyword(s):  
Bone Graft ◽  
Iliac Crest ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Volumetric Analysis ◽  
Group I ◽  
Alveolar Bone Grafting ◽  
Group Ii ◽  
Demineralized Bone

Objective: Comparison between bovine-derived demineralized bone matrix (DMBM) and iliac crest graft over long term for secondary alveolar bone grafting (SABG) in patients with unilateral cleft lip and palate (UCLP) in terms of radiological and clinical outcomes. Design: Prospective, randomized, parallel groups, double-blind, controlled trial. Setting: Unit of Oral and Maxillofacial Surgery, Oral Health Science Centre, Postgraduate Institute of Medical Education & Research, Chandigarh. Participants: Twenty patients with UCLP. Interventions: Patients were allocated into group I (Iliac crest bone graft) and group II (DMBM) for SABG. Outcomes were assessed at 2 weeks, 6 months, and then after mean follow-up period of 63 months. Outcomes Measures: Volumetric analysis of the grafted bone in the alveolar cleft site was done through cone beam computed tomography using Cavalieri principle and modified assessment tool. Clinical assessment was performed in terms of pain, swelling, duration of hospital stay, cost of surgery, alar base symmetry, and donor site morbidity associated with iliac crest harvesting. Results: Volumetric analysis through Cavalieri principle revealed comparable bone uptake at follow-up of 6 months between group I (70%) and group II (69%). Modified assessment tool showed no significant difference between horizontal and vertical bone scores over short- and long-term follow-up. In group II, there was higher cost of surgery, but no donor site morbidity unlike group I. Conclusions: Demineralized bone matrix proved analogous to iliac crest bone graft as per volumetric analysis over shorter period. However, although statistically insignificant, net bone volume achieved was lower than the iliac crest graft at longer follow-up.

scholarly journals Platelet rich plasma versus extracorporeal shock wave therapy in patients with non-calcific supraspinatous tears

2020 ◽  
Vol 47 (1) ◽  
Author(s):  
Samah M. Alian ◽  
Rabab S. Zaghlol ◽  
Sahar S. Khalil
Keyword(s):  
Shock Wave ◽  
Outcome Measures ◽  
Platelet Rich Plasma ◽  
Extracorporeal Shock Wave Therapy ◽  
Shock Wave Therapy ◽  
Tendon Tear ◽  
Extracorporeal Shock Wave ◽  
Group I ◽  
Group Ii

Abstract Background To compare the clinical efficacy of platelet rich plasma (PRP) subacromial injection and extracorporeal shock wave therapy (ESWT) on refractory non-calcific partial thickness supraspinatous tendon tear. Results Significant improvement in all outcome measures achieved in both groups at 4 weeks follow-up period (the end of treatment course) (P< 0.05). At 12 weeks follow-up period, group I, showed significant improvement in all outcome measures compared to baseline and group II; however, in group II, there was no significant difference compared to baseline; moreover, deterioration in the previous improvement was noticed. Conclusion Both PRP (group I) and ESWT (group II) are effective therapeutic methods in the management of refractory non-calcific partial thickness supraspinatous tendon tear; however, PRP (group I) has better long-term effects on both pain and function.

RECURRENCE RATE AFTER REPEAT TRANSURETHRAL RESECTION AMONG PATIENTS WITH NEWLY DIAGNOSED T1 BLADDER CANCER

2021 ◽  
pp. 51-54
Author(s):  
Md. Shafiqur Rahman ◽  
Sanjeeb Bhakta Bista ◽  
Md. Sayedul Islam ◽  
A. S. M. Shafiul Azam ◽  
Md. Shamim Hossain ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Recurrence Rate ◽  
Transurethral Resection ◽  
Tumor Recurrence ◽  
Controlled Trial ◽  
Intravesical Therapy ◽  
Newly Diagnosed ◽  
Group I ◽  
Group Ii

Background: Transurethral resection of the bladder tumor (TURBT) is the cornerstone of diagnosis and TURBT followed by selective adjuvant intravesical chemotherapy or immunotherapy is the gold standard of treatment for the patients with non-muscle invasive bladder cancer (NMIBC). Even after complete resection of the tumor there is high risk of residual tumor and subsequent recurrence and progression of the disease. The recurrence of T1 tumor is found to be around 71 % within 5 years and High grade T1 lesions recur in more than 80% of the cases and progress in 50% of the patients within 3 years. Disease status at 3 months after initial resection is an important predictor of subsequent recurrence and progression. To assess the tumor recurrence rat Objective: e among patients with newly diagnosed T1 bladder cancer between repeat transurethral resection group and single TURBT group. Ra Type of study: ndomized controlled trial. Place of study: Department of urology, BSMMU, Dhaka, Bangladesh. This Randomi Materials And Methods: zed Controlled Trial was conducted in urology department of BSMMU, Dhaka, Bangladesh from February 2017 till September 2018. A total of 50 patients, diagnosed as a case of T1 bladder cancer and who fulll the selection criteria were randomly divided in two groups consisting of 25 patients in each group. After informed consent, repeat TUR was done after 4 weeks of the initial TURBT for only 22 patients in group I since 3 of the patients did not show up on the scheduled date of surgery. Whereas, repeat TUR was not done for other 25 patients in group II. All the patients in both the groups were further treated with intravesical therapy according to the histopathological report. The patients in both the groups were followed up at 3 months and 6 months of the initial intervention where detailed history was taken, relevant investigations were done and check cystoscopy was done. TURBT was done for recurrent tumors. Out of 22 patients in group I, 2 patients were excluded for follow up on the basis of repeat TUR ndings. Whereas in group II, 2 patients missed the follow up and one of them missed the normal scheduled dose of intravesical therapy. Hence, 22 patients completed the study in group II. The baseline variables like age and Results: sex were similar in both the groups with higher male predominance. There was no statistical signicant difference in tumor characteristics such as size, number and grade of the tumor between the two groups. Out of 22 patients in group I who underwent repeat TUR at 4 weeks of initial TUR, residual disease was found in 8 (36.36%) patients. One of the patient was found to have T2 disease and 1 patient had CIS during repeat TUR. These 2 patients were not followed up since the treatment strategy changed after the results of repeat TUR. After 6 months of follow up of all the patients, 2 (10%) out of 20 patients in group I were found to have tumor recurrence however, in group II, 9 (40.9%) patients had tumor recurrence. The tumor recurrence rate between the two groups was found to be statistically signicant (p=0.023). In the light of ndings of this Conclusion: study, it can be concluded that performing repeat transurethral resection in patients with newly diagnosed T1 bladder cancer at 4 weeks of initial TURBT, helps to detect signicant number of residual tumor and reduce early recurrence rate of the tumor.

scholarly journals Adolescent idiopathic scoliosis: sagital plane and low density pedicle screws

2014 ◽  
Vol 13 (1) ◽  
pp. 13-15
Author(s):  
Rodrigo Augusto do Amaral ◽  
Robert Meves ◽  
Maria Fernanda Silber Caffaro ◽  
Ricardo Shigueaki Galhego Umeta ◽  
Luciano Antônio Nassar Pelegrino ◽  
...  
Keyword(s):  
Medical Records ◽  
Lumbar Lordosis ◽  
Thoracic Kyphosis ◽  
Sagittal Plane ◽  
Pedicle Screws ◽  
Low Density ◽  
Kyphosis Correction ◽  
Pearson Coefficient ◽  
Analysis Of Dispersion

OBJECTIVE: To examine the sagittal curves of patients treated with CD instrumentation using exclusively pedicle screws. METHODS: Image analysis of medical records of 27 patients (26 M and 1 F) with a minimum follow-up of 6 months, who underwent surgical treatment in our service between January 2005 and December 2010. The curves were evaluated on coronal and sagittal planes, taking into account the potential correction of the technique. RESULTS: In the coronal plan the following curves were evaluated: proximal thoracic (TPx), main thoracic (TPp), and thoracolumbar; lumbar (TL, L), and the average flexibility was 52%, 52%, and 92% and the capacity of correction was 51%, 72%, and 64%, respectively. In the sagittal plane there was a mean increase in thoracic kyphosis (CT) of 41% and an average reduction of lumbar lordosis (LL) of 17%. Correlation analysis between variables showed Pearson coefficient of correlation of 0.053 and analysis of dispersion of R2 = <0.001. CONCLUSION: The method has shown satisfactory results with maintenance of kyphosis correction in patients with normal and hyper kyphotic deformities.

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