Penn Medicine Provider
Orthopaedic Surgery
Timothy Costales, MD
4.9
(344)
Accepting new patients
Sees patients age 40 and up
Penn Orthopaedics University City - 8th Floor
View 1 additional location

About me

  • Assistant Professor of Clinical Orthopaedic Surgery

Dr. Timothy Costales is an orthopedic surgeon specializing in hip and knee replacement. He is affiliated with multiple hospitals in Philadelphia, including Penn Presbyterian Medical Center and the Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center. He received a BS in Biochemistry with Honors at Georgetown University. He received his medical degree from University of Maryland School of Medicine and was inducted into the Alpha Omega Alpha Honors Society. He underwent his orthopaedic surgery residency training at the University of Maryland Medical System / R Adams Cowley Shock Trauma Center. He completed a fellowship in adult hip and knee reconstruction and joint replacement at Massachusetts General Hospital / Harvard Medical School.

Dr. Costales specializes in hip & knee reconstructive surgery and is experienced in total knee arthroplasty, total joint replacement, direct anterior total hip arthroplasty, unicompartmental arthroplasty, robotic total knee and total hip arthroplasty, and revision total joint replacement.

Education and training

  • Medical School: University of Maryland School of Medicine
  • Residency: University of Maryland Medical Center
  • Fellowship: Massachusetts General Hospital

What my patients think about me

Average Rating
4.9

344 reviews

Comments are submitted by patients and reflect their views and opinions. The comments are not endorsed by and do not necessarily reflect the views of Penn Medicine.

May 2025
5.0
5.0
excellent surgeon. he will be deeply missed.
May 2025
5.0
5.0
it went very well
May 2025
5.0
5.0
he is the best!
May 2025
5.0
5.0
dr. costales is an excellent surgeon and provided me with a replacement knee with absolutely no issues. plus dr. costales is a very good all-around person of the highest of humanities.

Insurance accepted

My Locations

Penn Medicine hospital privileges

  • Hospital of the University of Pennsylvania: Has privileges to treat patients in the hospital.
  • Pennsylvania Hospital: Has privileges to treat patients in the hospital.
  • Penn Presbyterian Medical Center: Has privileges to treat patients in the hospital.
Dr. Costales is a Penn Medicine physician. In New Jersey, providers are affiliated with Penn Medicine through Clinical Health Care Associates of New Jersey or Princeton Healthcare Affiliated Physicians, PC.

Qualifications and experience

Treatments and Conditions

My research

Costales TG, Dalury DF. Outcomes of Cementless Versus Cemented Fixation of a Newly Introduced Total Knee Arthroplasty Design. Orthopedics. , Orthopedics, 17(9): 2024,1238-1246


Gopinath R, Oster BA, Mixa PJ, Costales TG, Johnson AJ, Manson TT. Immediate weightbearing is safe after revision total hip arthroplasty for Vancouver B2/B3 periprosthetic femur fractures. , Injury, 55(3): 2024,111384


Chen TL, Buddhiraju A, Costales TG, Subih MA, Seo HH, Kwon YM. Machine Learning Models Based on a National-Scale Cohort Identify Patients at High Risk for Prolonged Lengths of Stay Following Primary Total Hip Arthroplasty , Journal of Arthroplasty , 38(10): 2023,1967-1972


Gopinath R, DePalma BJ, Costales T, Chapman DM, Dalury DF. The natural history of radiolucencies following cemented unicompartmental knee arthroplasty at 7 years , Knee, 39: 2022,203-208


Costales TG, Greenwell PH, Shield W 3rd, Chapman DM, Griffin WL, Dalury DF. Poor Patient Follow-up After Metal-on-Metal Total Hip Arthroplasty , Orthopedics, 45(4): 2022,e196-e200


Klemt C, Laurencin S, Uzosike AC, Burns JC, Costales TG, Yeo I, Habibi Y, Kwon YM. Machine learning models accurately predict recurrent infection following revision total knee arthroplasty for periprosthetic joint infection , Knee Surg Sports Traumatol Arthrosc, 30(8): 2022,2582-2590


Cooke ME, Tornetta P 3rd, Firoozabadi R, Vallier H, Weinberg DS, Alton TB, Dillman MR, Westberg JR, Schmidt A, Bosse M, Leas DP, Archdeacon M, Kakazu R, Nzegwu I, OToole RV, Costales TG, Coale M, Mullis B, Usmani RH, Egol K, Kottmeier S, Sanders D, Jones C, Miller AN, Horwitz DS, Kempegowda H, Morshed S, Belaye T, Teague D. Open Ankle Fractures: What Predicts Infection? A Multicenter Study , J Orthop Trauma, 36(1): 2022,43-48


Leroux A, Frey KP, Crainiceanu CM, Obremskey WT, Stinner DJ, Bosse MJ, Karunakar MA, O'Toole RV, Carroll EA, Hak DJ, Hayda R, Alkhoury D, Schmidt AH; METRC. Defining Incidence of Acute Compartment Syndrome in the Research Setting: A Proposed Method From the PACS Study , J Orthop Trauma, 36(1): 2022,S26-S32


DePalma BJ, Costales TG, Schneider MB, Henn RF 3rd. Bilateral Extensor Mechanism Allograft Reconstruction in Native Knees: A Case Report , JBJS Case Connect, 12(1): 2022,doi: 10.2106/JBJS.CC.21.00322.


Major Extremity Trauma Research Consortium (METRC), O'Toole RV, Joshi M, Carlini AR, Murray CK, Allen LE, Huang Y, Scharfstein DO, O'Hara NN, Gary JL, Bosse MJ, Castillo RC, Bishop JA, Weaver MJ, Firoozabadi R, Hsu JR, Karunakar MA, Seymour RB, Sims SH, Churchill C, Brennan ML, Gonzales G, Reilly RM, Zura RD, Howes CR, Mir HR, Wagstrom EA, Westberg J, Gaski GE, Kempton LB, Natoli RM, Sorkin AT, Virkus WW, Hill LC, Hymes RA, Holzman M, Malekzadeh AS, Schulman JE, Ramsey L, Cuff JAN, Haaser S, Osgood GM, Shafiq B, Laljani V, Lee OC, Krause PC, Rowe CJ, Hilliard CL, Morandi MM, Mullins A, Achor TS, Choo AM, Munz JW, Boutte SJ, Vallier HA, Breslin MA, Frisch HM, Kaufman AM, Large TM, LeCroy CM, Riggsbee C, Smith CS, Crickard CV, Phieffer LS, Sheridan E, Jones CB, Sietsema DL, Reid JS, Ringenbach K, Hayda R, Evans AR, Crisco MJ, Rivera JC, Osborn PM, Kimmel J, Stawicki SP, Nwachuku CO, Wojda TR, Rehman S, Donnelly JM, Caroom C, Jenkins MD, Boulton CL, Costales TG, LeBrun CT, Manson TT, Mascarenhas DC, Nascone JW, Pollak AN, Sciadini MF, Slobogean GP, Berger PZ, Connelly DW, Degani Y, Howe AL, Marinos DP, Montalvo RN, Reahl GB, Schoonover CD, Schroder LK, et al. Effect of Intrawound Vancomycin Powder in Operatively Treated High-risk Tibia Fractures: A Randomized Clinical Trial , JAMA Surg, 156(5): 2021,e207259