Malcolm L. Ecker, MD

male silhouette icon
Malcolm L. Ecker, MD, is an attending surgeon in the Division of Orthopaedics at Children's Hospital of Philadelphia with a focus on spine disorders in children, fractures and general orthopaedics.

Areas of Expertise: Disorders of the Pediatric spine, Fractures, General Pediatric Orthopaedics, Scoliosis
Locations: Buerger Center for Advanced Pediatric Care

Appointments, Referrals and Video Visits: 215-590-1527

Education and Training

Medical School

MD - Temple University School of Medicine, Philadelphia, PA


Albert Einstein Medical Center, Philadelphia, PA


Boston City Hospital, Boston, MA
The Hospital for Special Surgery, New York, NY

Board Certification

Orthopaedic Surgery – American Board of Orthopaedic Surgery

Titles and Academic Titles

Attending Surgeon

Associate Professor Emeritus of Orthopaedic Surgery, Perelman School of Medicine at the University of Pennsylvania

Conditions Treated

Departments and Services




CORR Insights: Moderate Weightbearing Restrictions are Associated with Worse Depressive Symptoms and Anxiety in Children Aged 5 to 7 Years with Perthes Disease. Ecker, M. Clinical Orthopaedics and Related Research 480: 600-601, 2022.


A hierarchical classification of adolescent idiopathic scoliosis: Identifying the distinguishing features in 3D spinal deformities. Pasha, S., Hassanzadeh, P., Ecker, M., Ho, V. Pos ONE:2019, Mar 21.


Considerations in Sagittal Evaluation of The Scoliotic Spine.  Pasha, S., Ecker,M., Deeney,V. Eur J Orthop Surg Traumatol: Aug;28(6):1039-1045, 2018.


Ecker, ML. CORR Insights: Restoration of The Hip Center During THA Performed for Protrusion Acetabula is Associated with Better Implant Survival. Clin. Orthop Relat Res.471:3260-1, 2013


Markowits RI, Meyer JS, Tomlinson C,  Ecker M. CR/PACS for Scoliosis:  A Turn for the Better? Radiology Management  31: 22-27, 2009.


Auerbach JD. Ahn J, Zgonis MH, Reddy SC, Ecker ML, Flynn, JM.  Streamlining the Evaluation of Low Back Pain in Children.  Clinical Orthopaedics and Related Research 466:1971- 1977, 2008


Wills BP, Auerbach JD, Zhu X, Caird MS, Horn BD, Flynn JM, Drummond DS, Dormans JP, Ecker ML. Comparison of Cobb angle measurement of scoliosis radiographs with preselected end vertebrae: traditional versus digital acquisition. Spine 32:98-105, 2007.


Rose JB, Markowitz SD, Gundlapalli SP, Fishkin S, Ecker ML. Posterior Inferior Cerebellar Artery Infarction: An Unusual Complication of Posterior Spinal Fusion Surgery in an Adolescent with Idiopathic Scoliosis.  Anesthesiology 100:1308-11, 2004

Flynn J, Luedtke L, Ganley T, Dawson J, Davidson R, Dormans J, Ecker M, Gregg J, Horn D, and Drummond  D. Comparison of Titanium Elastic Nails with Traction and A Spica Cast to Treat Femoral Fractures in Children. J of Bone and Joint Surg. 86-A:770-777, 2004.

J. Flynn, S. Sodha, S. Adams, J. Lou, B. Whitfield, M. Ecker, L. Sutton, J. Dormans, D. Drummond. Predictors of progression of scoliosis after decompression of an Arnold Chiari I malformation. Spine. 29(3): 286-292, 2004


J. Blank, J. Flynn, W. Bronson, P. Ellman, S. Pill, J. Lou, J. Dormans, D. Drummond, M. Ecker. The use of postoperative subcutaneous closed suction drainage after posterior spinal fusion in adolescents with idiopathic scoliosis.  J. Spinal Disorders and Techniques. 16(6): 508-12, 2003.


Silber JS, Mathur S, and Ecker, MA Solitary Osteochondroma of The Pediatric Thoracic Spine: a case report and review of the literature. Amer J of Orthpaedics 29: 711-4, 2000.

Lotke PA, Ecker ML, Barth P, Lonner JH. Subchondral Magnetic Resonance Imaging Changes in Early Osteoarthrosis Associated with tibial Osteonecrosis. J of Arthroscopic and Related Surgery: 16: 76-81, 2000.

Schwartz, D.M., Drummond, D.S., Hahn,M., Ecker, M.L., and Dorman, J.P. Prevention of Positional Brachial Plexopathy (PBP) during Surgical Correction of Scoliosis.   J. of Spinal Disorders  13:178-182, 2000


Ecker, M.L. Correspondence - "Adolescent Idiopathic Scoliosis:  Treatment with the Wilmington Brace.  A Comparison of Full-Time and Part-Time Use".  J. Bone and Joint Surg.  80-A: 1083, 1998.


Ecker, M.L. Correspondence - "Porous-Coated Acetabular Components with Screw Fixation".  J. Bone and Joint Surg.  79-A: 1891, 1997.


Bulman, W.A., Dormans, J.P., Ecker, M.L., and Drummond, D.S. Posterior Spinal Fusion for Scoliosis in Patients with Cerebral Palsy:  A Comparison of Luque Rod and Unit Rod Instrumentation.  J. Ped. Orthopaedics  16:  314 -323, 1996.

Ecker, M.L., Dormans, J.P., Schwartz, D.M., Drummond, D.S., and Bulman, W.A. Efficacy of Spinal Cord Monitoring in Scoliosis Surgery in Patients with Cerebral Palsy.  J. of Spinal Disorders.   9: 159 - 164, 1996.

Schwartz, D.M., Drummond, D.S., Ecker, M.L.Influence of Rigid Spinal Instrumentation on the Neurogenic Motor Evoked Potential.  J Spinal Disord. 1996 Oct;9(5):439-45.

Lotke,P.L. and Ecker, M.L. Aspirin and Warfarin for Thromboembolic Disease After Total Joint Arthroplasty.  Clin. Orthop.  324: 251 - 258, 1996.


Dormans, J.P., Drummond, D.S., Sutton, L.N.,  Ecker,M.L.,and Kopacz, K.J. Occipitocervical Arthrodesis in Children.  J. Bone and Joint Surg. 77-A: 1234 - 1240, 1995.

Ecker, M.L. and Lotke, P.A. Osteonecrosis of the Medial Part of the Tibial Plateau. J. Bone and Joint Surg. 77-A: 596 - 601, 1995.


Ecker, M.L., Dormans, J.P., Schwartz,D., and Drummond, D.S. Efficacy of Spinal Cord Monitoring in Scoliosis Surgery in Patients with Cerebral Palsy.  Neurological Complications of Spinal Surgery, Proceedings of the 11th GICD Congress  :  110 - 113, 1994.

Ecker, M.L. and Lotke, P.A. Spontaneous Osteonecrosis of The Knee.  J Am Acad Orthop Surg  2: 173 - 178, 1994.

Lotke,P.A., Steinberg,M.E., and Ecker, M.L.Significance of Deep Venous Thrombosis in the Lower Extremity After Total Joint Arthroplasty. Clin. Orthop.299: 25 - 30, 1994.


Segal, L.S., Drummond, D.S., Zanotti,R.M., Ecker, M.L., and Mubarak,S.J. Complications of Posterior Arthrodesis of the Cervical Spine in Down Syndrome.  J. Bone and Joint Surg. 73-A: 1547 - 1554, 1991.

Lotke, P.A., Wong, R.Y., and Ecker, M.L.The Use of Methylmethacrylate in Primary Total Knee Replacements With Large Tibial Defects. Clin. Orthop.  270: 288 - 294, 1991.

Lotke, P.A., Faralli, V.J., Oremnstein, E.M., and Ecker, M.L. Blood Loss After Total Knee Replacement, Effects of Tourniquet Release and Continuous Passive Motion.  J. Bone and Joint Surg. 73-A: 1037 - 1040, 1991.


Elia,E.A., Lotke,P.A., Ecker, M.L. Unicondylar Arthroplasty for Osteoarthritis of the Knee. Surgical Rounds fo:r Orthop. 4:17,1990.


Ecker,M.L. and Lotke,P.A. Postoperative care of the total knee patient.  Ortho. Clin. of N. Amer. 20:55, 1989.


Ecker,M.L., Betz, R.R., Trent,P.S., Mahboubi,S., Mesgarzadeh,M., Bonakdapour,A., Drummond,D.S., and Clancy,M. Computer Tomography Evaluation of Cotrel-Dubousset Instrumentation in Idiopathic Scoliosis.  Spine 13:1141, 1988

Lotke, P.A. and Ecker, M.L. Current Concepts Review.  Osteonecrosis of the Knee.  J. Bone and Joint Surg.  70-A: 470 - 473, 1988.


Goll, S.R., Lotke, P.A., and Ecker, M.L.: in Rand, J.A. and Dorr,L.O. (eds)Failure of Continuous Passive Motion as Prophylaxis Against Deep Venous Thrombosis after Total Knee Arthroplasty.  Total Arthroplasty of the Knee.  Rockville, MD, Aspen, 1987, 299 - 305.

Ecker, M.L., Lotke, P.A., Windsor, R.E., and Cella,J.P. Long-Term Results after Total Condylar Knee Arthroplasty. Significance of Radiolucent Lines. Clin. Orthop.  216:151, 1987.


Lotke, P.A., Wong, R.Y. and Ecker, M.L. Stress Fracture as a Cause of Chronic Pain Following Revision Total Hip Arthroplasty.  Re-port of Two Cases. Clin. Orthop.  206:147, 1986.


Nawoczenski, D.A., Owen, M.G., Ecker, M.L., Altman, B. and Epler, M. Objective Evaluation of Peroneal Response to Sudden Inversion Stress. J. of Orthopaedic and Sports Physical Therapy, 1985.

Lotke, P.A. and Ecker, M.L. Osteonecrosis of the Knee.  Ortho. Clin. of N. America.  16:797-808, 1985.

Lotke, Paul A. and Ecker, M. L. Osteonecrosis of the Medial Tibial Plateau.  Cont. Orthopaedics,  10: No. 2, February 1985.


Lotke P.A., Pfister D.G., Ecker M.L. Correspondence - Deep Venous Thrombosis.  New England J. Medicine 311: 1579, 1984.

Lotke, P.A., Ecker, M.L., Alavi, A., and Berkowitz, H. Indications for the Treatment of Deep Venous Thrombosis Following Total Knee Replacement.  J. Bone and Joint Surg.  66-A:202, 1984.


Nacht, J.L., Ecker, M.L., Chung, Stanley, M.K., Lotke, P.A., and Das, Marianne. Supracondylar Fractures of the Humerus in Children Treated by Closed Reduction and Per-cutaneous Pinning.  Clin. Orthop. and Rel. Res.  177:203-209, July-August 1983.

Lotke, P.A. and Ecker, M.L. Osteonecrosis-Like Syndrome of the Medial Tibial Plateau. Clinical Orthop. and Rel. Res.  176:148, June 1983.


Lotke,P.A., Ecker,M.L., Berkowitz,H., and Alavi,A.Deep Venous Thrombosis Following Total Knee Surgery: Is Treatment Indicated? Arthrit. and Rheumat.  25:9, 1982.

Ecker, M.L., Cramer, L.M. and Lotke, P.A. Salmonella Osteomyelitis of the Tibia Treated by a Muscle Pedicle and Delayed Bone Grafting  A Case Report.  Clinical Orthop. and Rel. Res.  170:226, 1982.

Lotke, P.A., Abend, J.A., Ecker, M.L. The Treatment of Osteonecrosis of the Medial Femoral Condyle.  Clin. Orthop. and Rel. Res.  171, 109-116, Nov-Dec.1982.


Lotke, P.A., Lefkoe, R.T., Ecker, M.L. Late Results Following Medial Meniscectomy in an Older Population.  J. Bone and Joint Surg.  63-A:115, Jan. 1981.

Lotke, P.A., Ecker, M.L.Transverse Fractures of the Patella.  Clin. Orthop. and Rel. Res.  158:180-184, July-Aug. 1981.


Gregg, J.R., Labosky, D., Harty, M., Lotke, P., Ecker, M.L., diStefano, V., Das, M. Serratus Anterior Paralysis in the Young Athlete.  J. Bone and Joint Surg.  61-A:825-832, Sept. 1979.

Ecker, M.L., Lotke, P.A., Glazer, R.M. Late Reconstruction of the Patellar Tendon.   J. Bone and Joint Surg.  61-A:884,  886, Sept. 1979.


Lotke, P.A., Ecker, M.L. Influence of Positioning of Prosthesis in Total Knee Replacement.  J. Bone and Joint Surg.  59-A:77, Jan. 1977.

Lotke, P.A., Ecker, M.L., Alavi, A. J. Painful Knees in Older Patients.  Radionuclide Diagnosis of Possible Osteonecrosis with Spontaneous Resolution.  Bone and Joint Surg.        59-A:617, 1977.


Lotke, P.A., Ecker, M.L., McCloskey, J.R., Steinberg, M.E. Early Experience with Total Knee Arthroplasty.  J. Amer. Med. Assoc.  236:2403, 1976.


Ecker, M.L., Joyce, J.J., Kohl.,E.J. The Treatment of Trochanteric Fractures Using a Compression Screw.   J. Bone and Joint Surg.  59-A:23, 1975.


Price, R.I.M., Ecker, M.L. Z-Plasty Skin Closure after Lengthening the Achilles Tendon.  Plastic Reconstruction Surg.  52:309, Sept.1973.


Ranawat, C.S., Ecker, M.L., Straub, L.R. Synovectomy and Debridement of the Knee in Rheumatoid Arthritis.  (A Study of 60 Knees).  Arthritis Rheumatism  15:571, Nov-Dec 1972.


Ecker, M.L., Jacobs, B.S.Lower Extremity Amputations in Diabetic Patients.  Diabetes  19:189, March 1970.


Ritter, M.A., Jacobs, B.S., Ecker, M.L., Pavel, A. Varix Involving the Tibia.  J. Bone and Joint Surg.  49-A:741, June 1967.

Ecker, M.L., Ritter, M.A., Jacobs, B.S. The Symptomatic Os Trigonum.  J. Amer. Med. As-soc.  201:882, Sept. 11, 1967.


Ecker, M.L. Soft-Tissue Osteochondroma of Hand. N.Y. State J. Med.  66:3065, Dec.1966.



Chapter 4, “Adult Degenerative Scoliosis” Lotke, P.A. and Ecker, M.L. in Lippincott’s Primary Care Orthopedics, Second Edition edited by Lotke, P.A., Abboud, J.A., and Ende, E. Lippincott Williams & Wilkins Philadelphia, PA 2013.



Ecker, ML. Spontaneous osteonecrosis of the distal femur. In: Sims FH, editor. Instructional course lectures. Vol. 50. Rosemont, IL: American Academy of Orthopaedic Surgeons; 2001.

Lotke PA, Ecker ML, Lonner J. Spontaneous osteonecrosis. In: Insall JN, Scott WN, editors. Surgery of the knee. 3rd ed. Philadelphia, PA: Churchill Livingstone; 2001.


Ecker, ML. Back pain. In: Drummond DS, editor. Spine: state of the art reviews. Strategies in the pediatric spine. Vol. 14. Philadelphia, PA: Hanley & Belfus, Inc; Jan 2000. p 233-48.


Ecker ML. Arthrodesis: techniques and results. In: Lotke PA, Garino JP, editors. Revision total knee arthroplasty. Philadelphia, PA: Lippincott-Raven Publishers; 1999.


Lotke PA, Ecker ML. Deep venous thrombosis after total knee surgery. In: Rand JA, editor. Total knee arthroplasty. New York: Raven Press Ltd; 1993.
Ecker ML, Lotke PA. Wound healing complications. In: Rand JA. editor. Total knee arthroplasty. New York: Haven Press;1993.  


Ecker ML. Treatment of the infected total knee replacement. In: Lotke PA, editor. Postoperative infections in orthopaedic surgery: prevention and treatment. American Academy of Orthopaedic Surgeons Monograph Series; 1992.  


Ecker ML. Arthritis surgery sections on spine, ankle, foot, And soft tissue. In: Katz WA, editor. Diagnosis and management of rheumatic diseases. 2nd ed. Philadelphia, PA: J.B. Lippincott; 1988.  


Goll SR, Lotke PA, Ecker ML. Failure of continuous passive motion as prophylaxis against deep venous thrombosis after total knee arthroplasty. In: Rand JA, Dorr LO, editors. Total arthroplasty of the knee. Aspen: Rockville, MD; 1987: p 299 - 305.

Goll, SR, Lotke PA, Ecker ML. Failure of continuous passive motion as prophylaxis against deep venous thrombosis after total knee arthroplasty. In: Rand JA, Dorr LD, editors. Total arthroplasty of the knee, Proceedings of the Knee Society, 1985-1986. Rockville, Maryland: Aspen Publishers; 1987.  


Ecker ML. Surgery - introduction and surgery of the ankle and foot. In: Utsinger PZ, Zvaifler NJ, Ehrlich GE, editors. Rheumatoid arthritis. Philadelphia, PA: Lippincott;1985.


Ecker ML. Orthopaedic problems in pediatrics. In: Orthopaedics for the primary care physician, a self-instructional program by the Office for Continuing Medical Education of the University of Pennsylvania School of Medicine; 1979.