Patrick J. Cahill, MD

Medical School

MD - University of Illinois College of Medicine, Chicago, IL

Residency

Orthopaedic Surgery - Loyola University Medical Center, Maywood, IL

Fellowship

Rush Spine Surgery Fellowship Program - Midwest Orthopaedics at Rush, in Chicago, IL

Board Certification

Orthopaedic Surgery

Papers

2017

Iorio J, Orlando G, Diefenbach C, Gaughan JP, Samdani AF, Pahys JM, Betz RR, Cahill PJ. Serial casting for infantile idiopathic scoliosis: Radiographic outcomes and factors associated with response to treatment. J Pediatr Orthop. 2017;37(5):311-316.

LaGreca J, Flynn T, Cahill PJ, Samdani A, Vitale MG, El-Hawary R, Smith JT, Phillips JH, Flynn JM, Glotzbecker M, Garg S; Children's Spine Study Group. Patients without intraoperative neuromonitoring (IONM) alerts during VEPTR implantation did not sustain neurological injury during subsequent routine expansions: A retrospective multicenter cohort study. J Pediatr Orthop. 2017;37(8):e619-e624.

Nossov SB, Curatolo E, Campbell RM, Mayer OH, Garg S, Cahill PJ. Children's Spine Study Group. VEPTR: Are we reducing respiratory assistance requirements? [Published online ahead of print April 10, 2017] J Pediatr Orthop.  

2016

Antiel RM, Riley JS, Cahill PJ, Campbell RM, Waqar L, Herkert LM, Rintoul NE, Peranteau WH, Flake AW, Adzick NS, Hedrick HL. Management and outcomes of scoliosis in children with congenital diaphragmatic hernia. J Pediatr Surg. 2016;51(12):1921-1925. 

2015

Cuddihy L, Danielsson AJ, Cahill PJ, Samdani AF, Grewal H, Richmond JM, Mulcahey MJ, Gaughan JP, Antonacci MD, Betz RR. Vertebral Body Stapling versus Bracing for Patients with High-Risk Moderate Idiopathic Scoliosis. Biomed Res Int. 2015;2015:438452.

Park HY, Matsumoto H, Feinberg N, Roye DP, Kanj WW, Betz RR, Cahill PJ, Glotzbecker MP, Luhmann SJ, Garg S, Sawyer JR, Smith JT, Flynn JM, Vitale MG. The Classification for Early-onset Scoliosis (C-EOS) Correlates With the Speed of Vertical Expandable Prosthetic Titanium Rib (VEPTR) Proximal Anchor Failure. J Pediatr Orthop. 2015 Nov 13.

2014

Singla A, Bennett JT, Sponseller PD, Pahys JM, Marks MC, Lonner BS, Newton PO, Miyanji F, Betz RR, Cahill PJ, Samdani AF: Results of selective thoracic vs. non-selective fusion in Lenke type 3 curves. Spine (Phila Pa 1976) 2014 Sep 29 [Epub ahead of print]

Singla A, Bennett JT, Sponseller PD, Pahys JM, Marks MC, Lonner BS, Newton PO, Miyanji F, Betz RR, Cahill PJ, Samdani AF: Results of selective thoracic vs. non-selective fusion in Lenke type 3 curves. Spine (Phila Pa 1976) 39(24):2034-2041, November 2014.

Glotzbecker M, Johnston C, Miller P, Smith J, Perez-Grueso FS, Woon R, Flynn J, Gold M, Garg S, Redding G, Cahill P, Emans J: Is there a relationship between thoracic dimensions and pulmonary function in early onset scoliosis? Spine (Phila Pa 1976) 39(19):1590-1595, 2014.

Cahill PJ, Pahys JM, Asghar J, Yaszay B, Marks MC, Bastrom TP, Lonner BS, Shah SA, Shufflebarger HL, Newton PO, Betz RR, Samdani AF: The effect of surgeon experience on outcomes of surgery in adolescent idiopathic scoliosis. J Bone Joint Surg Am 96(16):1333-1339, August 2014.

Wang W, Baran GR, Betz RR, Samdani AF, Cahill PJ: The benefits of cement augmentation of pedicle screw fixation are increased in osteoporotic bone: a finite element analysis. Spine Deform 2:248-259, 2014.

Yilmaz G, Hwang S, Oto M, Kruse R, Rogers KJ, Bober MB, Cahill PJ, Shah SA: Surgical treatment of scoliosis in osteogenesis imperfecta with cement-augmented pedicle screw instrumentation. J Spinal Disord Tech 27(3):174-180, May 2014.

Safain M, Hwang S, King J, Cahill P, Samdani A: Loss of correction in spinal cord injury-related scoliosis after pedicle screw fixation. Childs Nerv Syst, 30(4):673-80, Apr 2014.

Hoashi JS, Samdani AF, Betz RR, Bastrom TP, Harms Study Group, Cahill PJ: Is there a “July Effect” in surgery for adolescent idiopathic scoliosis? J Bone Joint Surg Am 96(7):e55, Apr 2014.

Cahill PJ, Hoashi JS, Betz RR, Bastrom TP, Marks MC, Samdani AF, Harms Study Group: Is there a role for the five-degree rule in adolescent idiopathic scoliosis? J Pediatr Orthop 34(2):194-201, Mar 2014, doi: 10.1097/BPO.0b013e3182a11ed1.

Wang W, Baran GR, Betz RR, Samdani AF, Pahys JM, Cahill PJ: The use of finite element models to assist understanding and treatment for scoliosis: a review paper. Spine Deform 2(1):10-27, Jan 2014.

2013

El-Hawary R, Sturm PF, Cahill PJ, Samdani AF, Vitale MG, Gabos PG, Bodin ND, d’Amato CR, Harris C, Howard JJ, Morris SH, Smith JT: Sagittal spinopelvic parameters of young children with scoliosis. Spine Deform  1(5):343-347, 2013.

Theologis AA, Cahill P, Auriemma M, Betz R, Diab M: Vertebral body stapling in children with idiopathic scoliosis < 10 years of age with curve magnitude 30-39 degrees. Spine (Phila Pa 1976) 38(25):E1583-1588, Dec 2013.

Samdani AF, Belin EJ, Bennett JT, Pahys JM, Marks MC, Miyanji F, Shufflebarger HL, Lonner BS, Newton PO, Betz RR, Cahill PJ: Unplanned return to the operating room in patients with adolescent idiopathic scoliosis: are we doing better with pedicle screws? Spine (Phila Pa 1976) 38(21):1842-1847, Oct 1, 2013.

Hwang SW, Samdani AF, Stanton P, Marks MC, Bastrom T, Newton PO, Betz RR, Cahill PJ: Impact of pedicle screw fixation on loss of deformity correction in patients with adolescent idiopathic scoliosis. J Pediatr Orthop 33(4):377-82, Jun 2013.

Trobisch PD, Samdani AF, Betz RR, Bastrom TP, Pahys JM, Cahill PJ: Analysis of risk factors for loss of lumbar lordosis in patients who had surgical treatment with segmental instrumentation for adolescent idiopathic scoliosis. Eur Spine J 22(6):1312-1316, Jun 2013.

Hoashi J, Bennett JT, Cahill PJ, Samdani AF: Adolescent idiopathic scoliosis classification and treatment. Neurosurg Clin North Am 24(2):173-183, Apr 2013.

Hwang SW, Samdani AF, Lonner BS, Marks MC, Bastrom TP, Betz RR, Cahill PJ: A multicenter analysis of factors associated with change in height after adolescent idiopathic scoliosis deformity surgery in 447 patients. J Neurosurg Spine 18(3):298-302, Mar 2013.

Newton PO, Marks MC, Bastrom TP, Betz R, Clements D, Lonner B, Crawford A, Shufflebarger H, O’Brien M, Yaszay B, Harms Study Group: Surgical treatment of Lenke 1 main thoracic idiopathic scoliosis: results of a prospective, multi-center study. Spine (Phila Pa 1976) 38(4):328-338, Feb 15, 2013.

Books

Chapters

2014

Cahill PJ, Trobisch PD, Betz RR, Samdani AF: Adolescent scoliosis, ch. 28. In Minimally Invasive Spine Surgery: Surgical Techniques and Disease Management (Phillips FM, Lieberman I, Polly Jr DW, eds.). New York: Springer, 2014, pp. 299-314.

Jain V, Lykissas MG, Trobisch P, Wall EJ, Newton PO, Sturm PJ, Cahill PJ, Bylsky-Austrow DI: Surgical aspects of spinal growth modulation in scoliosis correction, In Instructional Course Lectures, vol. 63. Rosemont IL, American Academy of Orthopaedic Surgeons, 2014, pp. 335-344.

2012

Garg H, Pahys JM, Cahill PJ: Thoracic and lumbar spine injuries, ch. 5. In Pediatric Orthopaedic Surgical Emergencies (Abzug JM & Herman MJ, eds.). Philadelphia, PA: Springer, May 2012.

2009

Cahill P and Rinella A.  Adult Scoliosis. In Orthopaedic Knowledge Update 9 (Fischgrund JS, ed.). Rosemont, IL: American Academy of Orthopaedic Surgeons, 2009.

Cahill P, Lee M, and Singh K.  Degenerative Disk Disease. In Orthopaedic Knowledge Update 9 (Fischgrund JS, ed.). Rosemont, IL: American Academy of Orthopaedic Surgeons, 2009.

Posters and Presentations

2015

Phillips L, Yaszay B, Bastrom TP, Shah SA, Lonner BS, Miyanji F, Samdani AF, Parent S, Asghar J, Cahill PJ, Newton PO: Factors predicting when L3 is not distal enough for an “ideal” result in Lenke 5 curves. American Academy of Orthopaedic Surgeons annual meeting (podium), Las Vegas, NV, March 24-28, 2015.

Cahill PJ, Pahys JM, Hayes K, Betz RR, Samdani A: Anterior/posterior surgery in cerebral palsy scoliosis: perioperative outcomes of single day vs two-stage surgery. American Academy of Orthopaedic Surgeons annual meeting (poster), Las Vegas, NV, March 24-28, 2015.

Cahill PJ, Pahys JM, van Bosse HJP, Samdani AF: Placement of bilateral magnetically activated growing rods. American Academy of Orthopaedic Surgeons annual meeting (video nominated for Orthopaedic Video Theater Award), Las Vegas, NV, March 24-28, 2015.

2014

Cahill P, Carroll C, Pahys J, Hayes K, Betz R, Samdani A: Goals and indications for surgery in severe pediatric scoliosis related to cerebral palsy. 49th Scoliosis Research Society annual meeting (ePoster), Anchorage, AL, September 10-13, 2014.

Pahys J, Cahill P, Samdani A, Asghar J, Betz R: Lower extremity paralysis presenting 36 hours after attempted posterior spinal fusion for severe scoliosis in an adolescent. 49th Scoliosis Research Society annual meeting (case discussion), Anchorage, AL, September 10-13, 2014.

Pahys J, Cahill P, Asghar J, Betz R, Samdani A: Severe cervical kyphosis and spondyloptosis in Larsen syndrome with progressive myelopathy ameliorated with decompression and fusion: a report of two cases. 49th Scoliosis Research Society annual meeting (case discussion), Anchorage, AL, September 10-13, 2014.

Samdani A, Ames R, Bastrom T, Miyanji F, Pahys J, Marks M, Lonner B, Newton P, Shufflebarger H, Betz R, Cahill P: What is different about patients with Lenke 5 curves who achieve a minimal clinically important difference (MCID) in appearance? 49th Scoliosis Research Society annual meeting (podium), Anchorage, AL, September 10-13, 2014.

Samdani A, Bennett J, Singla A, Miyanji F, Lonner B, Shah S, Shufflebarger H, Asghar J, Pahys J, Marks M, Newton P, Betz R, Cahill P: Do Ponte osteotomies enhance correction in AIS? An analysis of 191 Lenke 1A and 1B curves. 21st International Meeting for Advanced Spine Techniques (2-min podium), Valencia, Spain, July 16-19, 2014.

Pahys J, Samdani A, Auriemma M, Dakwar E, Betz R, Cahill P: Failure and success in vertebral body stapling. 21st International Meeting for Advanced Spine Techniques (podium), Valencia, Spain, July 16-19, 2014.

Dakwar E, Samdani AF, Orlando G, Auriemma M, Pahys JM, Betz RR, Cahill PJ: The effect of vertebral body stapling on sagittal profile. Pediatric Orthopaedic Society of North America (ePoster), Hollywood, CA, April 30-May 3, 2014.

Ketschek A, Spillane M, Wang W, Orlando G, Samdani A, Betz RR, Pahys J, Gallo G, Cahill PJ: A novel animal model for congenital scoliosis in chicken embryos. American Academy of Orthopaedic Surgeons annual meeting (podium), New Orleans, LA, March 11-15, 2014.

2013

Tauchi R, Tsuji T, Saito T, Nohara A, Imagama S, Joshi AP, Roye Jr DP, Glotzbecker M, Sawyer JR, Heflin JA, Flynn JM, Smith JT, Ramirez N, Cahill PJ, El-Hawary R, Kawakami N, Chest Wall & Spine Deformity Study Group: Reliability analysis of Cobb angle measurements of congenital scoliosis using x-ray and 3D CT images. 7th International Congress on Early Onset Scoliosis and Growing Spine (ICEOS) (ePoster), Rancho Bernardo, CA, November 21-22, 2013.

Theologis AA, Cahill P, Auriemma M, Betz R, Diab M: Vertebral body stapling in children with idiopathic scoliosis < 10 years of age with curve magnitude 30-39 degrees. American College of Surgeons annual meeting, Washington DC, October 6-10, 2013.

Vitale MG, Matsumoto H, Park HY, McCalla D, Roye DP, Kang WW, Betz RR, Cahill PJ, Glotzbecker MP, Luhmann SJ, Garg S, Sawyer JR, Smith JT, Flynn JM: The classification for early onset scoliosis (C-EOS) predicts timing of VEPTR anchor failure. 48th annual Scoliosis Research Society meeting (ePoster), Lyon, France, September 18-21, 2013; 20th International Meeting on Advanced Spine Techniques (ePoster), Vancouver, BC, Canada, July 10-13, 2013.

Pahys J, Samdani A, Cahill P, Harms Study Group, Betz R: Does postoperative shoulder imbalance lead to adding on in posterior spinal fusion for Lenke 1A and 1B curves? 48th annual Scoliosis Research Society meeting (podium), Lyon, France, September 18-21, 2013.

Pahys J, Cahill P, Asghar J, Betz R, Harms Study Group, Samdani A: Does size matter? Comparison of 6.35mm vs. 5.5mm diameter rods for posterior spinal fusion in adolescent idiopathic scoliosis. 48th annual Scoliosis Research Society meeting (ePoster), Lyon, France, September 18-21, 2013; 20th International Meeting on Advanced Spine Techniques (ePoster), Vancouver, BC, Canada, July 10-13, 2013.

Singla A, Samdani AF, Flynn J, Bennett JT, Miyanji F, Pahys J, Marks M, Lonner B, Newton PO, Cahill PJ, Betz RR: What is different about surgically treated AIS patients who achieve a minimal clinically important difference (MCID) in appearance at 5 years post-surgery? 48th annual Scoliosis Research Society meeting (podium), Lyon, France, September 18-21, 2013.

Hwang SW, Samdani AF, Roguski M, Sugrue P, Kawakami N, Sturm P, Betz RR, El-Hawary R, Pahys JM, Cahill PJ: Risk factors associated with progression of Chiari I malformation related scoliosis after decompression. 48th annual Scoliosis Research Society meeting (ePoster), Lyon, France, September 18-21, 2013; 20th International Meeting on Advanced Spine Techniques (ePoster), Vancouver, BC, Canada, July 10-13, 2013.

Dakwar E, Samdani AF, Cahill PJ: Cranial nerve injuries following cervicothoracic fusion in Klippel-Feil syndrome. 48th annual Scoliosis Research Society meeting (case presentation), Lyon, France, September 18-21, 2013.

Dakwar E, Samdani AF, Auriemma M, Pahys JM, Betz RR, Cahill PJ: Fusion after vertebral body stapling. 48th annual Scoliosis Research Society meeting (podium), Lyon, France, September 18-21, 2013.