Carl A. Deirmengian, M.D.

Dr. Deirmengian is board certified in Orthopaedic Surgery. He specializes in performing hip and knee replacements as well as other general orthopaedic disorders.

The joint replacement surgeons at Rothman Orthopaedics collectively perform over 17,000 hip and knee procedures each year in both an inpatient and outpatient capacity. They continue to lead the way in advanced technologies and procedures, providing our patients with the safest, most effective methods to get you back to what you were.  Services offered include:


  • Total Hip Replacement
  • Anterior Hip Replacement
  • Minimally Invasive Hip Replacement
  • Rapid Recovery Hip Replacement
  • Revision Hip Replacement
  • Posterior Hip Replacement
  • Computer Assisted Hip Replacement
  • Robotic Hip Replacement
  • Outpatient Total Hip Replacement
  • Anterolateral Approach
  • Direct Lateral Approach



  • Total Knee Replacement
  • Partial Knee Replacement
  • Revision Knee Replacement
  • Minimally Invasive Knee Replacement
  • Rapid Recovery Knee Replacement
  • Computer Assisted Knee Replacement
  • Robotic Knee Replacement
  • Quad Sparing Knee Replacement
  • Outpatient Total Knee Replacement

Key Contact Information

Surgical Scheduler (Lankenau):  484-297-6246
Surgical Scheduler (Limerick):  484-932-5041
Medical Questions:  267-339-7873
Billing Inquiries:  267-339-3558

Office Locations

Surgical Locations

    Professional Profile

    • B.A., Princeton University
    • M.D., Harvard Medical School
    • Orthopaedic Internship and Residency, University of Pennsylvania
    • Fellowship, Adult Reconstruction, Rush University
    Titles & Certifications
    • Board Certified, Orthopaedic Surgery
    • Director of Comprehensive Arthritis and Joint Replacement Research, Lankenau Institute for Medical Research
    • Editorial Board, American Journal of Orthopaedics
    • Editorial Board, Clinical Orthopaedics and Related Research
    • Guest Reviewer, Journal of Arthroplasty
    Hospital Affiliations
    • Lankenau Hospital
    • Rothman Specialty Hospital
    Professional Associations
    • American Academy of Orthopaedic Surgeons
    • Pennsylvania Orthopaedic Society
    • Philadelphia Orthopaedic Society

    Physician Assistants

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    Peer Reviewed Publications

    • Deirmengian CA, Lonner JH. What's new in adult reconstructive knee surgery.
    • J Bone Joint Surg Am. 2010 Pending Publication
    • Levine BFabi DDeirmengian C. Digital templating in primary total hip and knee arthroplasty. Orthopedics. 2010 Nov 2;33(11):797Deirmengian CHallab NTarabishy ADella Valle CJacobs JJLonner JBooth RE Jr.  Synovial fluid biomarkers for periprosthetic infection. Clin Orthop Relat Res. 2010 Aug;468(8):2017-23.
    • Deirmengian CA, Lonner JH. What's new in adult reconstructive knee surgery.
    • J Bone Joint Surg Am. 2009 Dec;91(12):3008-18.
    • Levine BR, Della Valle CJ, Deirmengian CA, Breien KM, Weeden SH, Sporer SM, Paprosky WG. The use of a tripolar articulation in revision total hip arthroplasty: a minimum of 24 months' follow-up. J Arthroplasty. 2008 Dec;23(8):1182-8. 2008
    • Deirmengian CA, Lonner JH. What's new in adult reconstructive knee surgery. J Bone Joint Surg Am. 2008 ;90(11):2556-6
    • Chin KR, Tomlinson DT, Auerbach JD, Shatsky JB, Deirmengian CA. Success of lumbar microdiscectomy in patients with modic changes and low-back pain: a prospective pilot study. J Spinal Disord Tech. 2008 Apr;21(2):139-44.
    • Deirmengian CA, Jacobs JJ.  Trends in Joint Arthroplasty: Minimally Invasive Surgery, Wear-Resistant Materials and Biologics.  J Clin Rheumatology. 2007 Jun.   13(3):153-8.
    • Deirmengian CA, Lonner JH.  What's New in Adult Reconstructive Knee Surgery.  J Bone Joint Surg Am. 2007 Dec. 89(12): 2828-37.
    • Deirmengian CA, Berger RA, Sanders S, D’Ambrogio E, Buchheit K, Paprosky W, Della Valle CJ, Rosenberg AG.  Minimally Invasive Quadriceps-Sparing TKA:  Results of a comprehensive pathway for outpatient TKA.  J Knee Surg. 2006 April 19(2):145-8
    • Deirmengian C, Berger RA, Sanders S, Buchheit K.  Perioperative protocols for minimally invasive total knee arthroplasty.  J Knee surg. 2006 April 19(2):129-32
    • Deirmengian CA, Della Valle CJ, Berger RA, Paprosky WG, Jacobs JJ, Rosenberg AG.  A technique for minimally invasive, quadriceps-sparing total knee arthroplasty.  J Knee Surg.  2006 January 19(1):63-70.
    • Deirmengian CA, Berger RA.  A Technique for the Minimally Invasive, Watson-Jones Approach to Total Hip Arthroplasty.  Oper Tech in Ortho.  2006 April 16 (2):126-134.
    • Deirmengian CA, Lonner JH, Booth RE Jr.  Coventry Award Paper:  WBC Gene Expression: A novel approach to the study and diagnosis of infection in joint arthroplasty. Clin Orthop. 2005.
    • Deirmengian CA, Greenbaum J, Stern J, Braffman M, Lotke PA, Booth RE Jr, Lonner JH.  Open Debridement of Acute Gram-Positive Infections after Total Knee Arthroplasty.  Clin Orthop. 2003 Nov;(416):129-34.
    • Deirmengian CA, Greenbaum J, Lotke PA, Booth RE Jr, Lonner JH.  Limited Success with Open Debridement and Retention of Components in the Treatment of Acute S. aureus Infections after Total Knee Arthroplasty. J Arthroplasty. 2003 Oct;18(7 Suppl 1):22-6.
    • Deirmengian CA, Lee SG, Jupiter JB.  Neuropathic Arthropathy of the Elbow: A report of five cases.  J Bone Joint Surg. 2001. 83(6): 839-844.
    • Shah K, Liu Y, Deirmengian CA, Shokat KM. Engineering unnatural nucleotide specificity for Rous Sarcoma virus tyrosine kinase to uniquely label its direct substrates.  Proc. Natl. Acad. Sci. 1997. 94(8): 3565-70.
    • Maslanski JA, Powelt R, Deirmengian CA, Patelt J. Assessment of the muscarinic receptor subtypes involved in pilocarpine induced seizures in mice.  Neurosci Lett. 1994. 168(1-2): 225-228.

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