Young-Jo Kim, MD, PhD
Orthopedic Surgeon, Orthopedics and Sports Medicine Department; Associate Chief, Clinical Operations; Director, Child and Young Adult Hip Preservation Program; Director, Hip Preservation Fellowship
Professor of Orthopedic Surgery, Harvard Medical School
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Young-Jo Kim, MD, PhD
Orthopedic Surgeon, Orthopedics and Sports Medicine Department; Associate Chief, Clinical Operations; Director, Child and Young Adult Hip Preservation Program; Director, Hip Preservation Fellowship
Professor of Orthopedic Surgery, Harvard Medical School
Medical Services
Languages
English
Education
Medical School
Harvard Medical School
1994
Boston
MA
Internship
Beth Israel Deaconess Medical Center
1995
Boston
MA
Residency
Orthopedic Surgery
Harvard Combined Orthopedic Residency Program
1999
Boston
MA
Fellowship
Boston Children's Hospital
2000
Boston
MA
Fellowship
Texas Scottish Rite Hospital
2000
Dallas
TX
Media
Q&A
The Child and Young Adult Hip Preservation Program team answer questions about hip pain
Answers Blog
What you should know about hip labral tears in young athletes
Answers Blog
Jenna's comeback from PAO surgery
Answers Blog
AI could change the way we look at hip preservation
Certifications
American Board of Orthopedic Surgery (General)
Professional History
Honors
- 1993 - Kappa Delta Award of the American Academy of Orthopaedic Surgeons
- 1995 - Harris Yett Award in General Surgery at the Beth Israel Hospital, Boston
- 2007 - Kappa Delta Award, American Academy of Orthopedic Surgeons
Professional Societies (Active Member)
- 1986 - Sigma Xi
- 1990 - New York Academy of Sciences
- 1994 - Orthopaedic Research Society
- 2000 - Massachusetts Medical Society
- 2000 - Osteoarthritis Research Society International
- 2001 - Int Society for Magnetic Resonance in Medicine
- 2003 - Pediatric Orthopaedic Society of North America
- 2004 - American Academy of Orthopaedic Surgeons
- 2005 - SICOT (The Int Society of Orthopaedic Surgery Traumatology)
- 2011 - Hip Society
- 2012 - International Pediatric Orthopaedic Think Tank
- 2014 - International Hip Society
Leadership Positions
- Editorial Board Member, Osteoarthritis and Cartilage
- Editorial Board Member, Orthopedic Reviews
- Editorial Board Member, Journal of Hip Preservation Surgery
Approach to Care
I have always been interested in science and initially during my studies at MIT was intending to become a physicist or an electrical engineer. However, I was drawn to biomedical engineering and eventually orthopedic surgery during my graduate studies at MIT. During my graduate studies, my research focus was on understanding how mechanical forces affect cartilage biology. When I was contemplating what specialty to enter, I came upon the notion of using hip osteotomies to alter hip mechanics and perhaps prevent or slow down the progression of hip osteoarthritis. This would lead to a lifelong partnership between Dr. Michael Millis and myself.
Early on, I recognized that we needed a better imaging metric to understand how our surgeries can affect hip cartilage. Recognizing this, I established collaboration with Diego Jaramillo, Martha Gray and Deborah Burstein to implement a clinical protocol for delayed Gadolinium Enhanced MRI of Cartilage. To date this is the best protocol to understand the subtle biochemical changes that occur in cartilage with alterations in mechanics. Hip preservation surgery has now rapidly evolved into specialty onto itself. My current focus is on improving surgical education as well as helping set up large clinical trials to demonstrate the efficacy of our surgical procedures.
Early on, I recognized that we needed a better imaging metric to understand how our surgeries can affect hip cartilage. Recognizing this, I established collaboration with Diego Jaramillo, Martha Gray and Deborah Burstein to implement a clinical protocol for delayed Gadolinium Enhanced MRI of Cartilage. To date this is the best protocol to understand the subtle biochemical changes that occur in cartilage with alterations in mechanics. Hip preservation surgery has now rapidly evolved into specialty onto itself. My current focus is on improving surgical education as well as helping set up large clinical trials to demonstrate the efficacy of our surgical procedures.
Publications
Hip Osteoarthritis: Bench to Bedside Perspective. View Abstract
Is Increased Acetabular Cartilage or Fossa Size Associated With Pincer Femoroacetabular Impingement? View Abstract
Both 3-T dGEMRIC and Acetabular-Femoral T2 Difference May Detect Cartilage Damage at the Chondrolabral Junction. View Abstract
Editorial: Cam Deformity and Acetabular Dysplasia as Risk Factors for Hip Osteoarthritis. View Abstract
Periacetabular Osteotomy Redirects the Acetabulum and Improves Pain in Charcot-Marie-Tooth Hip Dysplasia With Higher Complications Compared With Developmental Dysplasia of the Hip. View Abstract
A narrative overview of the current status of MRI of the hip and its relevance for osteoarthritis research - what we know, what has changed and where are we going? View Abstract
Lineage-specific BCL11A knockdown circumvents toxicities and reverses sickle phenotype. View Abstract
Surgical Management of Pediatric Developmental Dysplasia of the Hip. View Abstract
Sensitivity to Change of a Computer Adaptive Testing Instrument for Outcome Measurement After Hip and Knee Arthroplasty and Periacetabular Osteotomy. View Abstract
Boston Children's Hospital orthopedic surgery program. View Abstract
Femoral Deformity May Be More Predictive of Hip Range of Motion Than Severity of Acetabular Disease in Patients With Acetabular Dysplasia: An Analysis of the ANCHOR Cohort. View Abstract
Survivorship of the Bernese Periacetabular Osteotomy: What Factors are Associated with Long-term Failure? View Abstract
What Is the Impact of Center Variability in a Multicenter International Prospective Observational Study on Developmental Dysplasia of the Hip? View Abstract
What Risk Factors and Characteristics Are Associated With Late-presenting Dislocations of the Hip in Infants? View Abstract
Activity Level and Severity of Dysplasia Predict Age at Bernese Periacetabular Osteotomy for Symptomatic Hip Dysplasia. View Abstract
The alpha angle as a predictor of contralateral slipped capital femoral epiphysis. View Abstract
Return to Play After Periacetabular Osteotomy for Treatment of Acetabular Dysplasia in Adolescent and Young Adult Athletes. View Abstract
Planar dGEMRIC Maps May Aid Imaging Assessment of Cartilage Damage in Femoroacetabular Impingement. View Abstract
Preliminary Results of Multiple Epiphyseal Drilling and Autologous Bone Marrow Implantation for Osteonecrosis of the Femoral Head Secondary to Sickle Cell Disease in Children. View Abstract
Understanding and Treating the Snapping Hip. View Abstract
Does periacetabular osteotomy have depth-related effects on the articular cartilage of the hip? View Abstract
Surgeon Willingness to Participate in Randomized Controlled Trials for the Treatment of Femoroacetabular Impingement. View Abstract
Surgical Treatment of Adolescent Acetabular Dysplasia With a Periacetabular Osteotomy: Does Obesity Increase the Risk of Complications? View Abstract
The AAOS Resident Assembly. View Abstract
Labral morphologic characteristics in patients with symptomatic acetabular dysplasia. View Abstract
Feasibility of a Randomized Clinical Trial for Treatment of Femoroacetabular Impingement of the Hip. View Abstract
Prognostic factors for mid-term symptom relief after open surgical correction for femoroacetabular impingement. View Abstract
Periacetabular osteotomy restores the typically excessive range of motion in dysplastic hips with a spherical head. View Abstract
Does previous pelvic osteotomy compromise the results of periacetabular osteotomy surgery? View Abstract
How do acetabular version and femoral head coverage change with skeletal maturity? View Abstract
Does periacetabular osteotomy for hip dysplasia modulate cartilage biochemistry? View Abstract
CORR Insights(®): Modified Dunn Procedure is Superior to In Situ Pinning for Short-term Clinical and Radiographic Improvement in Severe Stable SCFE. View Abstract
Obesity is a major risk factor for the development of complications after peri-acetabular osteotomy. View Abstract
Medial versus anterior open reduction for developmental hip dislocation in age-matched patients. View Abstract
Complications associated with the periacetabular osteotomy: a prospective multicenter study. View Abstract
Complications after modified Dunn osteotomy for the treatment of adolescent slipped capital femoral epiphysis. View Abstract
Three-dimensional hip cartilage quality assessment of morphology and dGEMRIC by planar maps and automated segmentation. View Abstract
The role of imaging in early hip OA. View Abstract
Interobserver and intraobserver reliability of the radiographic analysis of femoroacetabular impingement and dysplasia using computer-assisted measurements. View Abstract
The Bernese periacetabular osteotomy: is transection of the rectus femoris tendon essential? View Abstract
Is acetabular osteoplasty always required in mixed impingement? View Abstract
Patient and disease characteristics associated with hip arthroscopy failure in acetabular dysplasia. View Abstract
Open surgical treatment of femoroacetabular impingement in adolescent athletes: preliminary report on improvement of physical activity level. View Abstract
Hip dysplasia is more severe in Charcot-Marie-Tooth disease than in developmental dysplasia of the hip. View Abstract
Persistent structural disease is the most common cause of repeat hip preservation surgery. View Abstract
Reference values for proximal femoral anatomy in adolescents based on sex, physis, and imaging plane. View Abstract
Patients with unstable slipped capital femoral epiphysis have antecedent symptoms. View Abstract
Slipped capital femoral epiphysis: relevant pathophysiological findings with open surgery. View Abstract
Predictors of blood loss and haematocrit after periacetabular osteotomy. View Abstract
Direct comparison of intra-articular versus intravenous delayed gadolinium-enhanced MRI of hip joint cartilage. View Abstract
Descriptive epidemiology of femoroacetabular impingement: a North American cohort of patients undergoing surgery. View Abstract
Demographic differences in adolescent-diagnosed and adult-diagnosed acetabular dysplasia compared with infantile developmental dysplasia of the hip. View Abstract
Nonarthroplasty hip surgery for early osteoarthritis. View Abstract
Staging of hip osteoarthritis for clinical trials on femoroacetabular impingement. View Abstract
Femoroacetabular impingement research symposium. View Abstract
Clinical diagnosis of femoroacetabular impingement. View Abstract
Diagnostic imaging of femoroacetabular impingement. View Abstract
Clinical trials in orthopaedics and the future direction of clinical investigations for femoroacetabular impingement. View Abstract
Magnetic resonance imaging and histology of ovine hip joint cartilage in two age populations: a sheep model with assumed healthy cartilage. View Abstract
Physical activity level improves after periacetabular osteotomy for the treatment of symptomatic hip dysplasia. View Abstract
Anterior delayed gadolinium-enhanced MRI of cartilage values predict joint failure after periacetabular osteotomy. View Abstract
Do plain radiographs correlate with CT for imaging of cam-type femoroacetabular impingement? View Abstract
Report of breakout session: Slipped capital femoral epiphysis management 2011. View Abstract
Can radiographic morphometric parameters for the hip be assessed on MRI? View Abstract
Novel cartilage imaging techniques for hip disorders. View Abstract
Is the damage of cartilage a global or localized phenomenon in hip dysplasia, measured by dGEMRIC? View Abstract
Low early failure rates using a surgical dislocation approach in healed Legg-Calvé-Perthes disease. View Abstract
Femoroacetabular impingement: current clinical evidence. View Abstract
The reliability of arthroscopic classification of acetabular rim labrochondral disease. View Abstract
A new method to analyze dGEMRIC measurements in femoroacetabular impingement: preliminary validation against arthroscopic findings. View Abstract
Imaging hip dysplasia in the skeletally mature. View Abstract
Prevention of nerve injury after periacetabular osteotomy. View Abstract
Three-dimensional delayed gadolinium-enhanced magnetic resonance imaging of hip joint cartilage at 3T: a prospective controlled study. View Abstract
Vascular safe zones for surgical dislocation in children with healed Legg-Calvé-Perthes disease. View Abstract
Clinical stability of slipped capital femoral epiphysis does not correlate with intraoperative stability. View Abstract
Acetabular retroversion in Down syndrome. View Abstract
Predictors for secondary procedures in walking DDH. View Abstract
Patterns of joint damage seen on MRI in early hip osteoarthritis due to structural hip deformities. View Abstract
Extremity fracture pain after emergency department reduction and casting: predictors of pain after discharge. View Abstract
Femoral morphology and epiphyseal growth plate changes of the hip during maturation: MR assessments in a 1-year follow-up on a cross-sectional asymptomatic cohort in the age range of 9-17 years. View Abstract
Does previous reconstructive surgery influence functional improvement and deformity correction after periacetabular osteotomy? View Abstract
New frontiers in cartilage imaging of the hip. View Abstract
Responsiveness of the SF-36 and WOMAC following periacetabular osteotomy for acetabular dysplasia. View Abstract
Evaluation of articular cartilage in patients with femoroacetabular impingement (FAI) using T2* mapping at different time points at 3.0 Tesla MRI: a feasibility study. View Abstract
Surgical management of healed slipped capital femoral epiphysis. View Abstract
Instability of the hip in patients with Down Syndrome: improved results with complete redirectional acetabular osteotomy. View Abstract
Morphologic differences between the hips of Chinese women and white women: could they account for the ethnic difference in the prevalence of hip osteoarthritis? View Abstract
Diagnosis and treatment of femoroacetabular impingement in Legg-Calvé-Perthes disease. View Abstract
Effects of B1 inhomogeneity correction for three-dimensional variable flip angle T1 measurements in hip dGEMRIC at 3 T and 1.5 T. View Abstract
Vascular safe zones in hip arthroscopy. View Abstract
Treatment of the symptomatic healed Perthes hip. View Abstract
Delayed gadolinium-enhanced magnetic resonance imaging of hip joint cartilage: pearls and pitfalls. View Abstract
Multicenter study of complications following surgical dislocation of the hip. View Abstract
Diffusion-weighted MRI reveals epiphyseal and metaphyseal abnormalities in Legg-Calvé-Perthes disease: a pilot study. View Abstract
Periacetabular osteotomy after failed hip arthroscopy for labral tears in patients with acetabular dysplasia. View Abstract
Incidence of deep vein thrombosis and pulmonary embolus following periacetabular osteotomy. View Abstract
Hip Osteoarthritis MRI Scoring System (HOAMS): reliability and associations with radiographic and clinical findings. View Abstract
Acetabular morphology in slipped capital femoral epiphysis. View Abstract
Bernese periacetabular osteotomy in males: is there an increased risk of femoroacetabular impingement (FAI) after Bernese periacetabular osteotomy? View Abstract
Femoroacetabular cam-type impingement: diagnostic sensitivity and specificity of radiographic views compared to radial MRI. View Abstract
[Slipped capital femoral epiphysis]. View Abstract
T1 assessment of hip joint cartilage following intra-articular gadolinium injection: a pilot study. View Abstract
Intermediate to long-term results following the bernese periacetabular osteotomy and predictors of clinical outcome: surgical technique. View Abstract
The unstable slipped capital femoral epiphysis: risk factors for osteonecrosis. View Abstract
Radial dGEMRIC in developmental dysplasia of the hip and in femoroacetabular impingement: preliminary results. View Abstract
Epidural pneumatosis of the cervicothoracic spine associated with transient upper motor neuron findings complicating Haemophilus influenzae pharyngitis, bronchitis, and mediastinitis. View Abstract
What's new in pediatric orthopaedics. View Abstract
Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC), after slipped capital femoral epiphysis. View Abstract
Treatment of traumatic separation of the proximal femoral epiphysis without development of osteonecrosis: a report of two cases. View Abstract
Delayed gadolinium-enhanced magnetic resonance imaging of cartilage in the long-term follow-up after Perthes disease. View Abstract
MRI of hip osteoarthritis and implications for surgery. View Abstract
Delayed gadolinium-enhanced magnetic resonance imaging (dGEMRIC) of hip joint cartilage in femoroacetabular impingement (FAI): Are pre- and postcontrast imaging both necessary? View Abstract
Assessment of osteoarthritis in hips with femoroacetabular impingement using delayed gadolinium enhanced MRI of cartilage. View Abstract
Feasibility of T2* mapping for the evaluation of hip joint cartilage at 1.5T using a three-dimensional (3D), gradient-echo (GRE) sequence: a prospective study. View Abstract
High resolution fast T1 mapping technique for dGEMRIC. View Abstract
Triple pelvic osteotomy in complex hip dysplasia seen in neuromuscular and teratologic conditions. View Abstract
Intermediate to long-term results following the Bernese periacetabular osteotomy and predictors of clinical outcome. View Abstract
Hip MRI and its implications for surgery in osteoarthritis patients. View Abstract
A functional difficulty and functional pain instrument for hip and knee osteoarthritis. View Abstract
[Delayed gadolinium enhanced MRI of cartilage (dGEMRIC): molecular MRI of hip joint cartilage]. View Abstract
To screen or not to screen? A decision analysis of the utility of screening for developmental dysplasia of the hip. View Abstract
MRI of hip osteoarthritis and implications for surgery. View Abstract
Reproducibility of dGEMRIC in assessment of hip joint cartilage: a prospective study. View Abstract
Range of motion after computed tomography-based simulation of intertrochanteric corrective osteotomy in cases of slipped capital femoral epiphysis: comparison of uniplanar flexion osteotomy and multiplanar flexion, valgisation, and rotational osteotomies. View Abstract
Periacetabular osteotomy for acetabular dysplasia in patients older than 40 years: a preliminary study. View Abstract
Cartilage damage in femoroacetabular impingement (FAI): preliminary results on comparison of standard diagnostic vs delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC). View Abstract
[Radiological diagnosis of femoroacetabular impingement]. View Abstract
Radiographic and patient factors associated with pre-radiographic osteoarthritis in hip dysplasia. View Abstract
What's new in pediatric orthopaedics. View Abstract
A computer-adaptive disability instrument for lower extremity osteoarthritis research demonstrated promising breadth, precision, and reliability. View Abstract
Section VIII: Novel approaches to imaging and tracking of hip topology. View Abstract
Capital realignment for moderate and severe SCFE using a modified Dunn procedure. View Abstract
Post-closed reduction perfusion magnetic resonance imaging as a predictor of avascular necrosis in developmental hip dysplasia: a preliminary report. View Abstract
Radiographic evaluation of the hip has limited reliability. View Abstract
Imaging structural abnormalities in the hip joint: instability and impingement as a cause of osteoarthritis. View Abstract
Surgical dislocation in the management of pediatric and adolescent hip deformity. View Abstract
A systematic approach to the plain radiographic evaluation of the young adult hip. View Abstract
Femoral morphology due to impingement influences the range of motion in slipped capital femoral epiphysis. View Abstract
Magnetic resonance imaging of the hip at 3 Tesla: clinical value in femoroacetabular impingement of the hip and current concepts. View Abstract
Comparison of delayed gadolinium enhanced MRI of cartilage (dGEMRIC) using inversion recovery and fast T1 mapping sequences. View Abstract
Nonarthroplasty hip surgery for early osteoarthritis. View Abstract
What's new in pediatric orthopaedics. View Abstract
Extraarticular fractures after periacetabular osteotomy. View Abstract
2007 Elizabeth Winston Lanier Award Winner. Magnetic resonance imaging of cartilage glycosaminoglycan: basic principles, imaging technique, and clinical applications. View Abstract
Hip arthroscopy: an emerging gold standard. View Abstract
The futility of current approaches to chondroprotection. View Abstract
Hip dGEMRIC in asymptomatic volunteers and patients with early osteoarthritis: the influence of timing after contrast injection. View Abstract
Lateral entry compared with medial and lateral entry pin fixation for completely displaced supracondylar humeral fractures in children. A randomized clinical trial. View Abstract
Delayed gadolinium-enhanced magnetic resonance imaging of cartilage to predict early failure of Bernese periacetabular osteotomy for hip dysplasia. View Abstract
Early results of treatment of hip impingement syndrome in slipped capital femoral epiphysis and pistol grip deformity of the femoral head-neck junction using the surgical dislocation technique. View Abstract
Hip joint-preserving surgery: beyond the classic osteotomy. View Abstract
Short Term Results of Surgical Treatment for Slipped Capital Femoral Epiphysis and Pistol Grip Deformity of the Femoral Head View Abstract
MR imaging of congenital/developmental and acquired disorders of the pediatric hip and pelvis. View Abstract
Hip arthroscopy in children and adolescents. View Abstract
Fibrocystic changes at anterosuperior femoral neck: prevalence in hips with femoroacetabular impingement. View Abstract
Serum levels of nickel and chromium after instrumented posterior spinal arthrodesis. View Abstract
Periacetabular osteotomy in patients with Down's syndrome. View Abstract
Debridement of the adult hip for femoroacetabular impingement: indications and preliminary clinical results. View Abstract
Prophylactic pinning of the contralateral hip after unilateral slipped capital femoral epiphysis. View Abstract
Toward imaging biomarkers for osteoarthritis. View Abstract
Delay in diagnosis of slipped capital femoral epiphysis. View Abstract
Mechanisms and kinetics of glycosaminoglycan release following in vitro cartilage injury. View Abstract
Assessment of early osteoarthritis in hip dysplasia with delayed gadolinium-enhanced magnetic resonance imaging of cartilage. View Abstract
Rationale of osteotomy and related procedures for hip preservation: a review. View Abstract
Delayed esophageal perforation and abscess formation after cervical vertebrectomy and fusion. View Abstract
Surgical treatment of congenital kyphosis. View Abstract
Protocol issues for delayed Gd(DTPA)(2-)-enhanced MRI (dGEMRIC) for clinical evaluation of articular cartilage. View Abstract
Stimulation of aggrecan synthesis in cartilage explants by cyclic loading is localized to regions of high interstitial fluid flow. View Abstract
Mechanical compression alters proteoglycan deposition and matrix deformation around individual cells in cartilage explants. View Abstract
Compression of cartilage results in differential effects on biosynthetic pathways for aggrecan, link protein, and hyaluronan. View Abstract
Altered aggrecan synthesis correlates with cell and nucleus structure in statically compressed cartilage. View Abstract
The role of cartilage streaming potential, fluid flow and pressure in the stimulation of chondrocyte biosynthesis during dynamic compression. View Abstract
Mechanical regulation of cartilage biosynthetic behavior: physical stimuli. View Abstract
Segmentation of brain CT images using the concept of region growing. View Abstract
Biosynthetic response of cartilage explants to dynamic compression. View Abstract
Fluorometric assay of DNA in cartilage explants using Hoechst 33258. View Abstract