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Tsaknakis K, Afifi FK, Lorenz HM, Hell AK. [Non-traumatic osteochondral lesions of the knee joint during growth : Juvenile osteochondritis dissecans (JOCD) of the knee]. ORTHOPADIE (HEIDELBERG, GERMANY) 2024; 53:651-658. [PMID: 39196304 DOI: 10.1007/s00132-024-04552-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/26/2024] [Indexed: 08/29/2024]
Abstract
BACKGROUND Juvenile osteochondritis dissecans of the knee joint is the most common osteochondral lesion during growth, usually occurring between the 10th and 14th year of age. PATHOGENESIS Repetitive microtraumata lead to a subchondral osseus lesion, which is commonly located at the medial aspect of the femoral condyle. Sport activities are considered to be the main cause, although genetic and hereditary factors as well as vitamin D3 deficiency also play a role. Current classification systems distinguish between stable and unstable osteochondral lesions, which is decisive for further treatment. TREATMENT Stable lesions may heal through conservative treatment by avoiding weight bearing and sport. Unstable lesions, on the other hand, can lead to a complete defect of the joint surface with the formation of a free joint body. In such cases, various surgical techniques aim at reconstructing the surface of the joint, in order to reduce the risk of secondary arthritis.
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Affiliation(s)
- Konstantinos Tsaknakis
- Kinderorthopädie, Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland
| | - Faik K Afifi
- Kinderorthopädie, Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland
| | - Heiko M Lorenz
- Kinderorthopädie, Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland
| | - Anna K Hell
- Kinderorthopädie, Klinik für Unfallchirurgie, Orthopädie und Plastische Chirurgie, Universitätsmedizin Göttingen, Robert-Koch-Straße 40, 37075, Göttingen, Deutschland.
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Nguyen JC, Caine D. The Immature Pediatric Appendicular Skeleton. Semin Musculoskelet Radiol 2024; 28:361-374. [PMID: 39074720 DOI: 10.1055/s-0044-1786151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Growth and maturation occur in a predictable pattern throughout the body and within each individual bone. In the appendicular skeleton, endochondral ossification predominates in long bones and growth plates. The ends of these long bones are sites of relative weakness in the immature skeleton and prone to injury from acute insult and overuse. We present the normal histoanatomy and physiology of the growth plate complex, highlighting the unique contribution of each component and shared similarities between primary and secondary complexes. Components of the growth plate complex include the physis proper, subjacent vascularity within the growth cartilage, and the ossification front. The second section describes imaging considerations and features of normal and abnormal growth. Finally, we review the Salter-Harris classification for acute fractures and offer examples of characteristic overuse injury patterns involving the epiphyseal (proximal humerus and distal radius), apophyseal (medial epicondyle and tibial tubercle), and secondary growth plate complexes (medial femoral condyle and capitellar osteochondritis dissecans). This article provides a foundation and basic framework to better understand and anticipate potential complications and growth disturbances and to ensure optimal follow-up and early intervention when treatment can be less invasive.
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Affiliation(s)
- Jie C Nguyen
- Department of Radiology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Dennis Caine
- Division of Education, Health and Behavior Studies, Kinesiology and Public Health Education, University of North Dakota, Grand Forks, North Dakota
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Nammour MA, Mauro CS, Bradley JP, Arner JW. Osteochondritis Dissecans Lesions of the Knee: Evidence-Based Treatment. J Am Acad Orthop Surg 2024; 32:587-596. [PMID: 38295387 DOI: 10.5435/jaaos-d-23-00494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Accepted: 12/22/2023] [Indexed: 02/02/2024] Open
Abstract
Osteochondritis dissecans (OCD) of the knee is a potentially disabling condition in adolescent and young adults, which is likely multifactorial in origin. In recent years, there have been notable improvements in identification and treatment. Clinical presentation varies based mostly on OCD lesion stability. Patients with stable lesions generally present with vague knee pain and altered gait while mechanical symptoms and effusion are more common with unstable lesions. Lesions most commonly occur on the lateral aspect of the medial femoral condyle in patients aged 10 to 20 years. Magnetic resonance imaging is vital to diagnose and predict clinical treatment, which is largely based on stability of the fragment. Conservative treatment of stable lesions in patients with open physis is recommended with protected weight-bearing and gradual progression of activities over the course of 3 to 6 months. Stable OCD lesions which failed a nonsurgical course can be treated with transarticular or retrograde drilling while unstable lesions usually require fixation, autologous chondrocyte implantation (ACI), osteochondral autograft transfer (OATS), or osteochondral allograft transplantation. This review highlights the most current understanding of knee OCD lesions and treatment options with the goal of optimizing outcomes in this difficult pathology.
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Affiliation(s)
- Michael A Nammour
- From the Department of Orthopaedic Surgery, Louisiana State University Health Sciences Center- Shreveport, Shreveport, LA (Nammour), Department of Orthopaedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA (Mauro, Bradley and Arner)
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Breulmann F, Mehl J, Otto A, Lappen S, Siebenlist S, Rab P. [Treatment of osteochondritis dissecans]. ORTHOPADIE (HEIDELBERG, GERMANY) 2024; 53:69-82. [PMID: 38189958 DOI: 10.1007/s00132-023-04461-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/14/2023] [Indexed: 01/09/2024]
Abstract
Osteochondritis dissecans (OD) is a rare condition with an incidence of 30/100,000. It especially affects male patients aged 10-20 years old. During the staged progression the osteochondral fragments can detach from their base. These can damage the adjacent articular cartilage, which can lead to premature osteoarthritis. Most commonly affected are the knee, ankle and elbow joints. The exact pathogenesis of OD has so far not been clearly confirmed. Several risk factors that can lead to the development of OD are discussed. These include repeated microtrauma and vascularization disorders that can lead to ischemia of the subchondral bone and to a separation of the fragments close to the joint and therefore to the development of free joint bodies. For an adequate clarification patients should undergo a thorough radiological evaluation including X‑ray imaging followed by magnetic resonance imaging (MRI) to assess the integrity of the cartilage-bone formation with determination of the OD stage. The assessment is based on criteria of the International Cartilage Repair Society (ICRS). The instability of the cartilage-bone fragment increases with higher stages. Stages I and II with stable cartilage-bone interconnection can be treated conservatively. For stages III and IV, i.e., instability of the OD fragment or the presence of free fragments, surgical treatment should be performed. Primarily, refixation of a free joint body should be carried out depending on the size and vitality of the fragment. In cases of unsuccessful conservative treatment or fixation, a debridement, if necessary in combination with a bone marrow stimulating procedure, can be employed corresponding to the size of the defect. For larger cartilage defects, an osteochondral graft transplantation should be considered. Overall, OD lesions in stages I and II show a good healing tendency under conservative treatment. In cases of incipient unstable OD, refixation can also lead to good clinical and radiological results.
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Affiliation(s)
- Franziska Breulmann
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Julian Mehl
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Alexander Otto
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Sebastian Lappen
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland.
| | - Peter Rab
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, 81675, München, Deutschland
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Wilson PL, Wyatt CW, Johnson BL, Carpenter CM, Ellis HB. Suture-Bridge Fixation of Osteochondral Fractures and Osteochondritis Dissecans in the Knee: Excellent Rates of Early Lesion Stability and Osseous Union. Am J Sports Med 2023; 51:2936-2944. [PMID: 37565525 DOI: 10.1177/03635465231189244] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
BACKGROUND Preservation of articular cartilage in the setting of acute or chronic injury in the adolescent and young adult knee is paramount for long-term joint health. Achieving osseous union, minimizing implant-related injury, and eliminating the need for reoperation for traumatic chondral and osteochondral lesions (OCLs) and osteochondritis dissecans (OCD) remain a challenge for the orthopaedic surgeon. PURPOSE To evaluate radiographic healing, patient-reported outcomes, and short-term complications after suture-bridge fixation of chondral fragments, osteochondral fractures, and OCD lesions in the knee. STUDY DESIGN Case series; Level of evidence, 4. METHODS The study included consecutive patients (38 patients, 40 knees) treated within a single academic sports medicine institution who underwent suture-bridge fixation of an OCL or an OCD lesion of the knee from initiation of the technique in October 2019 through March 2021. The suture-bridge technique entailed bioabsorbable knotless anchors placed on the outside margins of the lesion with multiple strands of hand-tensioned absorbable (No. 0 or No. 1 Vicryl) or nonabsorbable (1.3-mm braided polyester tape) bridging suture. Healing was assessed by radiography and magnetic resonance imaging (MRI), with MRI scans obtained on all OCD lesions and any chondral-only lesions. MRI scans were available for 33 of 40 (82.5%) knees within 1 year of surgery and were evaluated for lesion healing. Complications and rates and timing of return to sport were evaluated. Patient-reported outcomes in the OCD cohort were evaluated with the Knee injury and Osteoarthritis Outcome Score (KOOS) to determine early pain and functional improvement. RESULTS In total, 33 (82.5%) lesions demonstrated full union, and no lesions failed treatment. MRI assessment of healing (mean, 5.8 months; range, 3-12 months) demonstrated 9 (64.3%) OCD lesions with full union, 5 (35.7%) OCD lesions with stable union, and no OCD lesions with nonunion. Of the OCLs, 17 (89.5%) had full union, 2 (10.5%) had stable union, and none had nonunion. The 7 bony OCLs without an MRI scan demonstrated complete radiographic union. In 30 (75.0%) lesions, patients returned to sports at a mean of 6.5 months (range, 3.8-10.2 months). KOOS Activities of Daily Living, Pain, Quality of Life, and Symptoms scores demonstrated significant improvement from baseline at 6 months and at 1 year. There were 2 (5%) complications, consisting of reoperation for marginal chondroplasty on an otherwise stable lesion, and re-operation for intial un-treated patellar instability, with no reoperations for failure or revision of the suture-bridge construct. CONCLUSION In this series of OCLs and OCD lesions of the knee, suture-bridge fixation demonstrated excellent rates of MRI and radiographic union and good early outcomes with minimal short-term complications. This technique may be used for lesion salvage as an alternative to metallic and nonmetallic screw/tack constructs in the treatment of these challenging lesions. Longer term follow-up and investigation are warranted.
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Korthaus A, Meenen NM, Pagenstert G, Krause M. The "hump" a new arthroscopic phenomenon guiding for reliable therapy of osteochondritis dissecans of variable stability status. Arch Orthop Trauma Surg 2023; 143:1513-1521. [PMID: 35366091 DOI: 10.1007/s00402-022-04409-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/27/2022] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Despite 150 years of research, there are currently no reliable morphological characteristics that can be used to differentiate between stable and unstable juvenile osteochondritis dissecans (JOCD) lesions in the knee joint. Arthroscopic probing is still the gold standard. In arthroscopic evaluation, a previously undescribed pattern of a cartilaginous convex elevation ("hump") was identified as a new feature and potential sign of JOCD in transition to instability. The aim of the study was to evaluate the clinical outcomes after surgical intervention (drilling) on the "hump". MATERIALS AND METHODS In a retrospective case series of sixteen patients with an arthroscopically detectable "hump", the analysis of clinical function scores (Lysholm, Tegner) and morphological MRI monitoring of radiological healing were performed. The assessment of lesion healing was based on pre- and postoperative MRI examinations. The "hump" was defined as an arthroscopically impressive protrusion of the femoral articular surface with a minimally softened, discolored, but intact cartilage margin that, is not mobile upon in the arthroscopic palpation hook test. The primary therapy of choice was drilling of all "humps". RESULTS The "hump" could be detected arthroscopically in 16 of 59 JOCD lesions. Specific MRI correlations with the "hump" or arthroscopic unstable lesions could not be detected. Not all "humps" showed signs of MRI-based healing after the drilling, and in some a dissection of the osteochondral flap occurred within the first postoperative year. As a result, secondary refixation became necessary. CONCLUSION In the present study, the "hump" was identified as an important differential diagnostic arthroscopic feature of an arthroscopically primarily stable JOCD lesion, potentially placing the lesion at risk of secondary loosening over time. Therefore, drilling alone may not be appropriate in the event of arthroscopic "hump" discovery, but additional fixation may be required to achieve the healing of the lesion. LEVEL OF EVIDENCE III.
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Affiliation(s)
- A Korthaus
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - N M Meenen
- Pediatric Sports Medicine, Sports Traumatology, Asklepios Clinic St. Georg, Lohmühlenstraße 5, 20099, Hamburg, Germany.
| | - G Pagenstert
- CLARAHOF Clinic of Orthopaedic Surgery, University of Basel, Clarahofweg 19a, 4058, Basel, Switzerland
| | - M Krause
- Department of Trauma and Orthopaedic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Kolin DA, Mackie AT, Heath MR, Uppstrom TJ, Green DW, Fabricant PD. No difference in patient reported outcomes between cohorts undergoing lesion-specific surgery for osteochondritis dissecans of the knee. J Orthop 2023; 37:22-26. [PMID: 36974089 PMCID: PMC10039298 DOI: 10.1016/j.jor.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 02/02/2023] [Accepted: 02/04/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction There is a paucity of data on patient reported outcome measures (PROMs) associated with surgical treatment of osteochondritis dissecans (OCD). As a result, preoperative patient and family counseling regarding expected outcomes is difficult. The purpose of this study was to compare pre-to post-operative changes in PROMs amongst cohorts of patients with OCD that underwent one of three lesion-specific surgical treatments: 1) transarticular drilling for stable lesions, 2) drilling and fixation for unstable lesions 3) grafting for unsalvageable lesions. Methods The electronic medical records of pediatric and adolescent patients with knee OCD, at a single institution between January 2017 and August 2019, were reviewed. Patients were categorized into one of three surgical groups, with initial determination confirmed at the time of surgery during diagnostic knee arthroscopy. Differences between groups were assessed with one-way analysis of variance (ANOVA). Results Of the 78 patients included in this study, 49 (62.8%) were male with a mean age of 13.5 ± 2.2 years. There was no significant difference between the surgical groups for baseline HSS Pedi-FABS (P = 0.58) or PROMIS Mobility (P = 0.47). There were no significant differences in PROMIS PI scores at baseline (P = 0.32), at latest follow-up (P = 0.72), or in interval change from baseline to follow-up (P = 0.42), between the three surgical groups. Conclusion Lesion-specific surgical management of OCD led to similar improvements in PROMIS PI at a minimum of one-year follow-up. These results may better allow surgeons to reassure patients and families that outcomes are similar when lesions are treated through a lesion-specific algorithm. Level of evidence Level IV: Retrospective cohort study.
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Affiliation(s)
| | | | - Madison R. Heath
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY, USA
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Tudisco C, Bernardi G, Manisera MT, De Maio F, Gorgolini G, Farsetti P. An update on osteochondritis dissecans of the knee. Orthop Rev (Pavia) 2022; 14:38829. [PMID: 36540072 PMCID: PMC9760694 DOI: 10.52965/001c.38829] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Osteochondritis dissecans of the knee (OCD) is a multifactorial pathology in where repetitive microtrauma plays a central role in the etiopathogenesis. Knee MRI is indicated in young, active patients who have knee pain and/or effusion, to make an early diagnosis and decide about treatment, according essentially to the MRI stability signs. The choice of treatment should be also tailored, based on the patient's skeletal maturity, as well as the size and location of the lesion. Conservative treatment with restricting sports activities is the first line treatment and often sufficient to ensure healing in patients with open physes. Surgical treatment depends on the persistence of symptoms after 6 months of conservative treatment and/or based on the development of signs of instability of the lesion. Stable lesions with intact articular cartilage may be treated by drilling of the subchondral bone aiming to stimulate vascular ingrowth and subchondral bone healing. Every attempt should be made to retain the osteochondral fragment when possible. Instable lesions should be fixed or "replaced" with salvage procedures to prevent the onset of early osteoarthritis in this young population. Furthers studies are needed to improve the knowledge and optimizing non-operative and surgical treatment and to develop noninvasive diagnostic tools to predict with more accuracy the fragment's stability.
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Affiliation(s)
- Cosimo Tudisco
- Unicamillus - Saint Camillus International University of Health Sciences, Rome, Italy
| | - Gabriele Bernardi
- Department of Orthopaedics and TraumatologyNuova Itor Clinic, Rome, Italy
| | - Maria Teresa Manisera
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and TraumatologyUniversity of Rome “Tor Vergata”, Italy
| | - Fernando De Maio
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and TraumatologyUniversity of Rome “Tor Vergata”, Italy
| | - Giulio Gorgolini
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and TraumatologyUniversity of Rome “Tor Vergata”, Italy
| | - Pasquale Farsetti
- Department of Clinical Science and Translational Medicine, Section of Orthopaedics and TraumatologyUniversity of Rome “Tor Vergata”, Italy
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Andriolo L, Solaro L, Altamura SA, Carey JL, Zaffagnini S, Filardo G. Classification Systems for Knee Osteochondritis Dissecans: A Systematic Review. Cartilage 2022; 13:19476035221121789. [PMID: 36117427 PMCID: PMC9634996 DOI: 10.1177/19476035221121789] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
OBJECTIVE Aim of this systematic review was to describe all classification systems for knee osteochondritis dissecans (OCD) lesions, evaluating their accuracy and reliability, as well as their use in the literature on knee OCD. DESIGN A systematic review of the literature was performed in July 2021 on PubMed, WebOfScience, and Cochrane Collaboration (library) to describe all published classification systems for knee OCD lesions and quantify the use of these classifications in the literature. RESULTS Out of 1,664 records, 30 studies on 33 OCD classifications systems were identified, describing 11 radiographic, 13 MRI, and 9 arthroscopic classifications. The search included 193 clinical studies applying at least one OCD classification, for a total of 7,299 knee OCD cases. Radiographic classifications were applied to 35.8%, MRI to 35.2%, and arthroscopic classifications to 64.2% of the included studies. Among these, in the last two decades, the International Cartilage Repair Society's (ICRS) arthroscopic classification was the most described approach in studies on knee OCD. Overall, there is a lack of data on accuracy and reliability of the available systems. CONCLUSIONS Several classifications are available, with ICRS being the most used system over the time period studied. Arthroscopy allows to confirm lesion stability, but noninvasive imaging approaches are the first line to guide patient management. Among these, radiographic classifications are still widely used, despite being partially superseded by MRI, because of its capability to detect the earliest disease stages and to distinguish stable from unstable lesions, and thus to define the most suitable conservative or surgical approach to manage patients affected by knee OCD. LEVEL OF EVIDENCE Systematic review, level IV.
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Affiliation(s)
- Luca Andriolo
- Clinica Ortopedica e Traumatologica 2,
IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Luca Solaro
- Clinica Ortopedica e Traumatologica 2,
IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy,Luca Solaro, Clinica Ortopedica e
Traumatologica 2, IRCCS Istituto Ortopedico Rizzoli, Via Pupilli, 1/10, 40136
Bologna, Italy.
| | | | - James L. Carey
- Penn Center for Advanced Cartilage
Repair and Osteochondritis Dissecans Treatment, Hospital of the University of
Pennsylvania, Philadelphia, PA, USA,Perelman School of Medicine, University
of Pennsylvania, Philadelphia, PA, USA
| | - Stefano Zaffagnini
- Clinica Ortopedica e Traumatologica 2,
IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Giuseppe Filardo
- Applied and Translational Research
(ATR) Center, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
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Pallamar M, Eder T, Ganger R, Farr S. Surgical treatment of atraumatic osteochondrosis dissecans of the immature talus-Clinical results and prevalence of radiographic joint degeneration after a median follow-up of 72.5 months. Foot Ankle Surg 2022; 28:557-563. [PMID: 34020882 DOI: 10.1016/j.fas.2021.05.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 05/06/2021] [Accepted: 05/14/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study aimed to assess the clinical and radiographic outcomes of different surgical procedures in atraumatic osteochondrosis dissecans (OCD) of the talus in youth and adolescence. METHODS 32 joints in 30 patients (mean age 14.7 ± 2.2 years) were evaluated. Numeric Rating Scale (NRS), Foot and Functional Index (FFI), American Orthopedic Foot and Ankle Society ankle-hindfoot score (AOFAS), Pediatric Outcome Data Collection Instrument (PODCI), and sport participation were recorded. We compared preoperative and follow-up ankle radiographs to identify specific features in the OCD morphology and any signs of joint degeneration. RESULTS After a median follow-up period of 72.5 months the drilling group showed significantly better scores than the combined fixation and reconstruction groups (AOFAS, p = 0.024; PODCI, p = 0.003; NRS, p = 0.027). Signs of joint degeneration were observed in 50% of all ankles, especially in those treated by OCD-fixation and reconstruction. CONCLUSIONS Advanced fixation and reconstruction procedures in unstable and non-salvageable atraumatic talar OCD resulted in inferior clinical scores and a higher prevalence of joint degeneration than drilling procedures in stable OCD in young patients.
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Affiliation(s)
- Matthias Pallamar
- Department of Pediatric Orthopaedics and Adult Foot and Ankle Surgery, Orthopaedic Hospital Speising, Speisingerstraße 109, 1130 Vienna, Austria.
| | - Theresa Eder
- Department of Pediatric Orthopaedics and Adult Foot and Ankle Surgery, Orthopaedic Hospital Speising, Speisingerstraße 109, 1130 Vienna, Austria
| | - Rudolf Ganger
- Department of Pediatric Orthopaedics and Adult Foot and Ankle Surgery, Orthopaedic Hospital Speising, Speisingerstraße 109, 1130 Vienna, Austria.
| | - Sebastian Farr
- Department of Pediatric Orthopaedics and Adult Foot and Ankle Surgery, Orthopaedic Hospital Speising, Speisingerstraße 109, 1130 Vienna, Austria.
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Ganley TJ. Top 5 AJSM Papers in Pediatric Sports Medicine Over the Past 50 Years. Am J Sports Med 2022; 50:1775-1778. [PMID: 35648626 DOI: 10.1177/03635465221100985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Feroe AG, Flaugh RA, Majumdar A, Baxter TA, Miller PE, Kocher MS. Validation of a Novel Magnetic Resonance Imaging Classification for Osteochondritis Dissecans of the Knee. J Pediatr Orthop 2022; 42:e486-e491. [PMID: 35220339 DOI: 10.1097/bpo.0000000000002111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The novel Kocher classification is a 3-group magnetic resonance imaging (MRI) classification system for osteochondritis dissecans (OCD) of the knee that was shown to have comparable reliability to that of the established 5-group Hefti classification. The purpose of this study was to evaluate the validity and clinical utility of this simplified system as an alternative to the Hefti classification. METHODS Demographic data and arthroscopic findings were retrospectively collected from medical and surgical records of 144 consecutive knees in children with arthroscopically diagnosed knee OCD. OCD lesions on preoperative MRIs and surgical reports (serving as the reference standard) were assessed by independent raters and assigned both a Kocher and Hefti classification. Agreement between MRI classification and arthroscopic findings for both systems was assessed using weighted kappa (kw) coefficients. Validation, accuracy, sensitivity, and specificity were measured by comparing a dichotomized Kocher classification for MRI and arthroscopy, and by estimating Cohen kappa (kc) coefficients. Agreement between arthroscopic findings and treatment type was measured using the Spearman correlation coefficient. RESULTS Inter-rater reliability between the 2 MRI raters was substantial for the Kocher classification [ka=0.66; 95% confidence interval (CI)=0.56-0.75] and moderate for the Hefti classification (ka=0.57; 95% CI=0.47-0.67). There was no difference detected in the agreement statistics for Kocher versus Hefti classifications (P=0.89). Binary agreement using dichotomized Kocher classifications was worse than the 3-group category classification. When dichotomized, combining Kocher grades 1 and 2 demonstrated moderate agreement (kc=0.41; 95% CI=0.25-0.58), and combining grades 2 and 3 demonstrated fair agreement (kc=0.34; 95% CI=0.21-0.48). There was a strong correlation between arthroscopy-based finding and treatment category for both the Kocher classification (r=0.85; 95% CI=0.80-0.89) and the Hefti classification (r=0.82; 95% CI=0.75-0.86). CONCLUSION The validity and clinical utility of the newer 3-group Kocher classification for knee OCD is comparable to that of the well-established 5-group Hefti classification. Both systems help determine lesion stability and characteristics on MRI, which correlate closely to arthroscopic findings. This simplified classification system, with less uncertainty, provides a foundation for further outcomes research to develop an evidence-based algorithm for effective surgical management of OCD lesions of the knee. LEVEL OF EVIDENCE Level II-diagnostic study.
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Affiliation(s)
- Aliya G Feroe
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
- Harvard Medical School, Boston, MA
| | - Rachel A Flaugh
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
- Harvard Medical School, Boston, MA
| | - Aditi Majumdar
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
| | - Tara A Baxter
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
| | - Patricia E Miller
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
| | - Mininder S Kocher
- Division of Sports Medicine, Department of Orthopaedic Surgery, Boston Children's Hospital
- Harvard Medical School, Boston, MA
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Osteochondrosis dissecans am Kniegelenk beim Sportler. ARTHROSKOPIE 2022. [DOI: 10.1007/s00142-022-00515-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Nissen CW, Albright JC, Anderson CN, Busch MT, Carlson C, Carsen S, Chambers HG, Edmonds EW, Ellermann JM, Ellis HB, Erickson JB, Fabricant PD, Ganley TJ, Green DW, Grimm NL, Heyworth BE, Po JHH, Kocher MS, Kostyun RO, Krych AJ, Latz KH, Loveland DM, Lyon RM, Mayer SW, Meenen NM, Milewski MD, Myer GD, Nelson BJ, Nepple JJ, Nguyen JC, Pace JL, Paterno MV, Pennock AT, Perkins CA, Polousky JD, Saluan P, Shea KG, Shearier E, Tompkins MA, Wall EJ, Weiss JM, Willimon SC, Wilson PL, Wright RW, Zbojniewicz AM, Carey JL. Descriptive Epidemiology From the Research in Osteochondritis Dissecans of the Knee (ROCK) Prospective Cohort. Am J Sports Med 2022; 50:118-127. [PMID: 34818065 DOI: 10.1177/03635465211057103] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Osteochondritis dissecans (OCD) occurs most commonly in the knees of young individuals. This condition is known to cause pain and discomfort in the knee and can lead to disability and early knee osteoarthritis. The cause is not well understood, and treatment plans are not well delineated. The Research in Osteochondritis Dissecans of the Knee (ROCK) group established a multicenter, prospective cohort to better understand this disease. PURPOSE To provide a baseline report of the ROCK multicenter prospective cohort and present a descriptive analysis of baseline data for patient characteristics, lesion characteristics, and clinical findings of the first 1000 cases enrolled into the prospective cohort. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS Patients were recruited from centers throughout the United States. Baseline data were obtained for patient characteristics, sports participation, patient-reported measures of functional capabilities and limitations, physical examination, diagnostic imaging results, and initial treatment plan. Descriptive statistics were completed for all outcomes of interest. RESULTS As of November 2020, a total of 27 orthopaedic surgeons from 17 institutions had enrolled 1004 knees with OCD, representing 903 patients (68.9% males; median age, 13.1 years; range, 6.3-25.4 years), into the prospective cohort. Lesions were located on the medial femoral condyle (66.2%), lateral femoral condyle (18.1%), trochlea (9.5%), patella (6.0%), and tibial plateau (0.2%). Most cases involved multisport athletes (68.1%), with the most common primary sport being basketball for males (27.3% of cases) and soccer for females (27.6% of cases). The median Pediatric International Knee Documentation Committee (Pedi-IKCD) score was 59.9 (IQR, 45.6-73.9), and the median Pediatric Functional Activity Brief Scale (Pedi-FABS) score was 21.0 (IQR, 5.0-28.0). Initial treatments were surgical intervention (55.4%) and activity restriction (44.0%). When surgery was performed, surgeons deemed the lesion to be stable at intraoperative assessment in 48.1% of cases. CONCLUSION The multicenter ROCK group has been able to enroll the largest knee OCD cohort to date. This information is being used to further understand the pathology of OCD, including its cause, associated comorbidities, and initial presentation and symptoms. The cohort having been established is now being followed longitudinally to better define and elucidate the best treatment algorithms based on these presenting signs and symptoms.
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Affiliation(s)
- Carl W Nissen
- PRISM Sports Medicine, Hartford, Connecticut; Hartford Healthcare's Bone and Joint Institute, Hartford, Connecticut, USA
| | | | | | | | - Cathy Carlson
- College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota, USA
| | - Sasha Carsen
- Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - Henry G Chambers
- Rady Children's Hospital and UC San Diego, San Diego, California, USA
| | - Eric W Edmonds
- Rady Children's Hospital and UC San Diego, San Diego, California, USA
| | | | - Henry B Ellis
- Scottish Rite for Children Sports Medicine, Frisco, Texas, USA
| | - John B Erickson
- Children's Hospital of Wisconsin, Greenfield, Wisconsin, USA
| | | | - Theodore J Ganley
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | | | | | | | | | - Regina O Kostyun
- Hartford Healthcare's Bone and Joint Institute, Hartford, Connecticut, USA
| | | | | | | | - Roger M Lyon
- Children's Hospital of Wisconsin, Milwaukee, Wisconsin, USA
| | | | - Norbert M Meenen
- Asklepios Hospital St. George, Children's Sports Medicine, Hamburg, Germany
| | | | - Gregory D Myer
- Emory Sport Performance and Research Center, Flowery Branch, Georgia; Emory Sports Medicine Center, Atlanta, Georgia; Department of Orthopaedics, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Jeffrey J Nepple
- Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jie C Nguyen
- The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - J Lee Pace
- Andrew's Institute, Children's Health, Plano, Texas, USA
| | - Mark V Paterno
- Cincinnati Children's Hospital and University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Andrew T Pennock
- Rady Children's Hospital and UC San Diego, San Diego, California, USA
| | | | - John D Polousky
- Akron Children's Hospital Department of Orthopedics, Akron, Ohio, USA
| | | | - Kevin G Shea
- Stanford Children's Hospital, Sunnyvale, California, USA
| | - Emily Shearier
- Hartford Healthcare's Bone and Joint Institute, Hartford, Connecticut, USA
| | - Marc A Tompkins
- Gillette Children's Specialty Healthcare; University of Minnesota; TRIA Orthopaedic Center, Minneapolis, Minnesota, USA
| | - Eric J Wall
- Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jennifer M Weiss
- Southern California Permanente Medical Group, Los Angeles, California, USA
| | | | - Philip L Wilson
- Scottish Rite for Children Sports Medicine, Frisco, Texas, USA
| | - Rick W Wright
- Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Andrew M Zbojniewicz
- Michigan State University; Advanced Radiology Services, Grand Rapids, Michigan, USA
| | - James L Carey
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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- Investigation performed at multiple sites
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15
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Hussain ZB, Mathew ST, Feroe AG, Lins LAB, Miller P, Kocher MS. Novel Magnetic Resonance Imaging Classification of Osteochondritis Dissecans of the Knee: A Reliability Study. J Pediatr Orthop 2021; 41:e422-e426. [PMID: 33782366 DOI: 10.1097/bpo.0000000000001814] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Current advanced imaging classification systems for osteochondritis dissecans (OCD) of the knee grade severity of disease by identifying certain lesion characteristics. The most widely used are the Hefti and Nelson systems. A novel classification presents a simpler 3-group approach to diagnose knee OCD by magnetic resonance imaging (MRI), compared with the Hefti (5-group) and Nelson (4-group) classifications. The purpose of this study was to compare the reliability of this novel classification with that of the more complex, established systems-an initial step in establishing validity and clinical utility. METHODS In total, 120 standardized knee MRIs of patients with established knee OCD were preselected to capture the spectrum of lesion types, with regard to both progression and location of the lesion. Each of the MRIs were independently classified by 2 readers into the novel, Hefti, and Nelson classification systems. A random sample was rereviewed by 1 rater 6 weeks after initial review. The inter-rater and intrarater agreements were evaluated by estimating Krippendorff α. RESULTS In total, 106 knees were classified by the novel, Hefti, and Nelson classification systems, as 14 of the knees lacked the necessary MRI sequences. There were no differences in inter-rater and intrarater agreement across classification systems. Krippendorff α for inter-rater agreement was 0.51 (95% confidence interval, 0.33-0.66) for the Hefti classification, 0.50 (0.34-0.64) for the Nelson classification, and 0.49 (0.32-0.65) for the novel classification. The intrarater agreement was 0.88 (0.75-0.97) for the Hefti classification, 0.94 (0.86-0.99) for the Nelson classification, and 0.98 (0.94-1.00) for the novel classification system. CONCLUSIONS The novel classification for knee OCD demonstrated near-perfect intrarater agreement and moderate inter-rater agreement, consistent with the current, well-established classification systems. Pending a subsequent study on validity and clinical utility, this simpler classification system may offer an alternative, noninvasive diagnostic method to guide clinical treatment. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Zaamin B Hussain
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
- Department of Orthopaedic Surgery, Emory University School of Medicine, Atlanta, GA
| | - Stephen T Mathew
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
| | - Aliya G Feroe
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
- Harvard Medical School, Harvard University, Boston, MA
| | - Laura A B Lins
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
- Department of Orthopaedic Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI
| | - Patricia Miller
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
| | - Mininder S Kocher
- Department of Orthopaedic Surgery & Sports Medicine, Boston Children's Hospital
- Harvard Medical School, Harvard University, Boston, MA
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16
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Chau MM, Klimstra MA, Wise KL, Ellermann JM, Tóth F, Carlson CS, Nelson BJ, Tompkins MA. Osteochondritis Dissecans: Current Understanding of Epidemiology, Etiology, Management, and Outcomes. J Bone Joint Surg Am 2021; 103:1132-1151. [PMID: 34109940 PMCID: PMC8272630 DOI: 10.2106/jbjs.20.01399] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
➤ Osteochondritis dissecans occurs most frequently in the active pediatric and young adult populations, commonly affecting the knee, elbow, or ankle, and may lead to premature osteoarthritis. ➤ While generally considered an idiopathic phenomenon, various etiopathogenetic theories are being investigated, including local ischemia, aberrant endochondral ossification of the secondary subarticular physis, repetitive microtrauma, and genetic predisposition. ➤ Diagnosis is based on the history, physical examination, radiography, and advanced imaging, with elbow ultrasonography and novel magnetic resonance imaging protocols potentially enabling early detection and in-depth staging. ➤ Treatment largely depends on skeletal maturity and lesion stability, defined by the presence or absence of articular cartilage fracture and subchondral bone separation, as determined by imaging and arthroscopy, and is typically nonoperative for stable lesions in skeletally immature patients and operative for those who have had failure of conservative management or have unstable lesions. ➤ Clinical practice guidelines have been limited by a paucity of high-level evidence, but a multicenter effort is ongoing to develop accurate and reliable classification systems and multimodal decision-making algorithms with prognostic value.
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Affiliation(s)
- Michael M Chau
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Mikhail A Klimstra
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Kelsey L Wise
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota
| | - Jutta M Ellermann
- Center for Magnetic Resonance Research, Department of Radiology, University of Minnesota, Minneapolis, Minnesota
| | - Ferenc Tóth
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - Cathy S Carlson
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul, Minnesota
| | - Bradley J Nelson
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota
- TRIA Orthopedic Center, Bloomington, Minnesota
| | - Marc A Tompkins
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota
- TRIA Orthopedic Center, Bloomington, Minnesota
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17
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Mellis D, Staines KA, Peluso S, Georgiou IC, Dora N, Kubiak M, van’t Hof R, Grillo M, Farquharson C, Kinsella E, Thornburn A, Ralston SH, Salter DM, Riobo-Del Galdo NA, Hill RE, Ditzel M. Ubiquitin-protein ligase Ubr5 cooperates with hedgehog signalling to promote skeletal tissue homeostasis. PLoS Genet 2021; 17:e1009275. [PMID: 33819267 PMCID: PMC8057592 DOI: 10.1371/journal.pgen.1009275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/20/2021] [Accepted: 03/20/2021] [Indexed: 12/11/2022] Open
Abstract
Mammalian Hedgehog (HH) signalling pathway plays an essential role in tissue homeostasis and its deregulation is linked to rheumatological disorders. UBR5 is the mammalian homologue of the E3 ubiquitin-protein ligase Hyd, a negative regulator of the Hh-pathway in Drosophila. To investigate a possible role of UBR5 in regulation of the musculoskeletal system through modulation of mammalian HH signaling, we created a mouse model for specific loss of Ubr5 function in limb bud mesenchyme. Our findings revealed a role for UBR5 in maintaining cartilage homeostasis and suppressing metaplasia. Ubr5 loss of function resulted in progressive and dramatic articular cartilage degradation, enlarged, abnormally shaped sesamoid bones and extensive heterotopic tissue metaplasia linked to calcification of tendons and ossification of synovium. Genetic suppression of smoothened (Smo), a key mediator of HH signalling, dramatically enhanced the Ubr5 mutant phenotype. Analysis of HH signalling in both mouse and cell model systems revealed that loss of Ubr5 stimulated canonical HH-signalling while also increasing PKA activity. In addition, human osteoarthritic samples revealed similar correlations between UBR5 expression, canonical HH signalling and PKA activity markers. Our studies identified a crucial function for the Ubr5 gene in the maintenance of skeletal tissue homeostasis and an unexpected mode of regulation of the HH signalling pathway.
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Affiliation(s)
- David Mellis
- Edinburgh CRUK Cancer Research Centre, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Katherine A. Staines
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, United Kingdom
| | - Silvia Peluso
- MRC Human Genetics Unit, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Ioanna Ch. Georgiou
- Leeds Institute of Medical Research and School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Natalie Dora
- MRC Human Genetics Unit, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Malgorzata Kubiak
- Edinburgh CRUK Cancer Research Centre, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Rob van’t Hof
- Centre for Genomic and Experimental Medicine, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Michela Grillo
- Edinburgh CRUK Cancer Research Centre, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Colin Farquharson
- Roslin Institute and R(D)SVS, The University of Edinburgh, Edinburgh, United Kingdom
| | - Elaine Kinsella
- Edinburgh CRUK Cancer Research Centre, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Anna Thornburn
- MRC Human Genetics Unit, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Stuart H. Ralston
- Centre for Genomic and Experimental Medicine, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Donald M. Salter
- Centre for Genomic and Experimental Medicine, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Natalia A. Riobo-Del Galdo
- Leeds Institute of Medical Research and School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Robert E. Hill
- MRC Human Genetics Unit, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Mark Ditzel
- Edinburgh CRUK Cancer Research Centre, MRC Institute for Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
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18
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de Sa D, Crum RJ, Rabuck S, Ayeni O, Bedi A, Baraga M, Getgood A, Kaar S, Kropf E, Mauro C, Peterson D, Vyas D, Musahl V, Lesniak BP. The REVision Using Imaging to Guide Staging and Evaluation (REVISE) in ACL Reconstruction Classification. J Knee Surg 2021; 34:509-519. [PMID: 31569256 PMCID: PMC8995042 DOI: 10.1055/s-0039-1697902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Revision anterior cruciate ligament (ACL) procedures are increasing in incidence and possess markedly inferior clinical outcomes (76% satisfaction) and return-to-sports (57%) rates than their primary counterparts. Given their complexity, a universal language is required to identify and communicate the technical challenges faced with revision procedures and guide treatment strategies. The proposed REV: ision using I: maging to guide S: taging and E: valuation (REVISE) ACL (anterior cruciate ligament) Classification can serve as a foundation for this universal language that is feasible and practical with acceptable inter-rater agreement. A focus group of sports medicine fellowship-trained orthopaedic surgeons was assembled to develop a classification to assess femoral/tibial tunnel "usability" (placement, widening, overlap) and guide the revision reconstruction strategy (one-stage vs. two-stage) post-failed ACL reconstruction. Twelve board-certified sports medicine orthopaedic surgeons independently applied the classification to the de-identified computed tomographic (CT) scan data of 10 patients, randomly selected, who failed ACL reconstruction. An interclass correlation coefficient (ICC) was calculated (with 95% confidence intervals) to assess agreement among reviewers concerning the three major classifications of the proposed system. Across surgeons, and on an individual patient basis, there was high internal validity and observed agreement on treatment strategy (one-stage vs. two-stage revision). Reliability testing of the classification using CT scan data demonstrated an ICC (95% confidence interval) of 0.92 (0.80-0.98) suggesting "substantial" agreement between the surgeons across all patients for all elements of the classification. The proposed REVISE ACL Classification, which employs CT scan analysis to both identify technical issues and guide revision ACL treatment strategy (one- or two-stage), constitutes a feasible and practical system with high internal validity, high observed agreement, and substantial inter-rater agreement. Adoption of this classification, both clinically and in research, will help provide a universal language for orthopaedic surgeons to discuss these complex clinical presentations and help standardize an approach to diagnosis and treatment to improve patient outcomes. The Level of Evidence for this study is 3.
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Affiliation(s)
- Darren de Sa
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Raphael J Crum
- School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Stephen Rabuck
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Olufemi Ayeni
- Department of Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Asheesh Bedi
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan
| | - Michael Baraga
- Department of Orthopaedic Surgery, University of Miami, Miami, Florida
| | - Alan Getgood
- Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Scott Kaar
- Department of Orthopaedic Surgery, Saint Louis University, St. Louis, Missouri
| | - Eric Kropf
- Temple Orthopaedics at the Navy Yard, Vincera Institute, Philadelphia, Pennsylvania
| | - Craig Mauro
- Burke and Bradley Orthopaedics, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Devin Peterson
- Department of Orthopaedic Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Dharmesh Vyas
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Volker Musahl
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Bryson P Lesniak
- Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
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19
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Fabricant PD, Milewski MD, Kostyun RO, Wall EJ, Zbojniewicz AM, Albright JC, Bauer KL, Carey JL, Chambers HG, Edmonds EW, Ellis HB, Ganley TJ, Green DW, Grimm NL, Heyworth BE, Kocher MS, Krych AJ, Lyon RM, Mayer SW, Nepple JJ, Nissen CW, Pennock AT, Polousky JD, Saluan P, Shea KG, Tompkins MA, Weiss J, Clifton Willimon S, Wilson PL, Wright RW, Myer GD. Osteochondritis Dissecans of the Knee: An Interrater Reliability Study of Magnetic Resonance Imaging Characteristics. Am J Sports Med 2020; 48:2221-2229. [PMID: 32584594 DOI: 10.1177/0363546520930427] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Imaging characteristics of osteochondritis dissecans (OCD) lesions quantified by magnetic resonance imaging (MRI) are often used to inform treatment and prognosis. However, the interrater reliability of clinician-driven MRI-based assessment of OCD lesions is not well documented. PURPOSE To determine the interrater reliability of several historical and novel MRI-derived characteristics of OCD of the knee in children. STUDY DESIGN Cohort study (diagnosis); Level of evidence, 3. METHODS A total of 42 OCD lesions were evaluated by 10 fellowship-trained orthopaedic surgeons using 31 different MRI characteristics, characterizing lesion size and location, condylar size, cartilage status, the interface between parent and progeny bone, and features of both the parent and the progeny bone. Interrater reliability was determined via intraclass correlation coefficients (ICCs) with 2-way random modeling, Fleiss kappa, or Krippendorff alpha as appropriate for each variable. RESULTS Raters were reliable when the lesion was measured in the coronal plane (ICC, 0.77). Almost perfect agreement was achieved for condylar size (ICC, 0.93), substantial agreement for physeal patency (ICC, 0.79), and moderate agreement for joint effusion (ICC, 0.56) and cartilage status (ICC, 0.50). Overall, raters showed significant variability regarding interface characteristics (ICC, 0.25), progeny (ICC range, 0.03 to 0.62), and parent bone measurements and qualities (ICC range, -0.02 to 0.65), with reliability being moderate at best for these measurements. CONCLUSION This multicenter study determined the interrater reliability of MRI characteristics of OCD lesions in children. Although several measurements provided acceptable reliability, many MRI features of OCD that inform treatment decisions were unreliable. Further work will be needed to refine the unreliable characteristics and to assess the ability of those reliable characteristics to predict clinical lesion instability and prognosis.
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Affiliation(s)
- Peter D Fabricant
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Matthew D Milewski
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Regina O Kostyun
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Eric J Wall
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Andrew M Zbojniewicz
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jay C Albright
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Kathryn L Bauer
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - James L Carey
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Henry G Chambers
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Eric W Edmonds
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Henry B Ellis
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Theodore J Ganley
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Daniel W Green
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Nathan L Grimm
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Benton E Heyworth
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Mininder S Kocher
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Aaron J Krych
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Roger M Lyon
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Stephanie W Mayer
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jeffrey J Nepple
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Carl W Nissen
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Andrew T Pennock
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - John D Polousky
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Paul Saluan
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Kevin G Shea
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Marc A Tompkins
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Jennifer Weiss
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - S Clifton Willimon
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Philip L Wilson
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Rick W Wright
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Gregory D Myer
- Investigation performed at the Hospital for Special Surgery, New York, New York, USA, and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
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20
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Waters T, Gowd AK, Waterman BR. Management of Symptomatic Osteochondritis Dissecans of the Knee. Arthroscopy 2020; 36:1803-1804. [PMID: 32387650 DOI: 10.1016/j.arthro.2020.04.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 04/06/2020] [Indexed: 02/02/2023]
Abstract
Osteochondritis dissecans (OCD) is a focal lesion of the subchondral bone that can result in fragmentation, instability, and if untreated, loose body formation with progression to early degenerative changes. Particularly in adolescent male athletes, OCD of the knee is a common source of pain, effusion, and mechanical symptoms with sporting activities. Conservative treatment of athletes with OCD of the knee can entail several months of activity modification and non-weight-bearing restrictions, with varying degrees of healing and return to activity. For unstable OCD lesions not amenable to conservative treatment, previous studies have shown excellent outcomes in patients undergoing osteochondral fixation, with hardware placement and technique being critical determinants of patient outcomes. This infographic reviews the presentation and description of different types of OCD lesions, prognostic factors, surgical indications, and considerations for determining the optimal treatment algorithm. With unstable lesions showing either a "locked door" or "trapdoor" at the time of arthroscopy, subchondral bone preparation and arthroscopic-assisted or open fixation with dual-pitch metal or bio-composite screws can be successful in 67% to 100% of cases. Nonviable or chronically displaced lesions may undergo abrasion chondroplasty, marrow stimulation, or preferably, secondary cartilage restoration.
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Affiliation(s)
- Timothy Waters
- Department of Orthopedic Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina, U.S.A
| | - Anirudh K Gowd
- Department of Orthopedic Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina, U.S.A..
| | - Brian R Waterman
- Department of Orthopedic Surgery, Wake Forest Baptist Health, Winston-Salem, North Carolina, U.S.A
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Gowd AK, Beck EC, Nabor D, Waterman BR. A Staged Arthroscopic Approach to Fixation of Unstable Osteochondritis Dissecans in the Medial Femoral Condyle of the Knee Using Nonabsorbable Fixation Screws. Arthrosc Tech 2020; 9:e477-e481. [PMID: 32368467 PMCID: PMC7189124 DOI: 10.1016/j.eats.2019.11.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 11/29/2019] [Indexed: 02/03/2023] Open
Abstract
Osteochondritis dissecans is a focal lesion of articular cartilage that can result in fragment instability with progression of early osteoarthritis. Regarding the knee joint, salvage of an unstable lesion can be achieved using arthroscopic-assisted reduction and fixation via a 2-stage process. The first involves arthroscopic fixation of the fragment using nonbioabsorbable screws, whereas the second stage performed 12 weeks later involves removal of the screws and confirmation of successful healing of the lesion. Previous studies have demonstrated excellent outcomes in patients undergoing fixation for unstable chondral lesions not amenable to conservative treatment. A critical component of successful treatment is understanding the importance of hardware placement and technique. The purpose of the Technical Note is to describe a method performing this 2-stage arthroscopic repair of an unstable chondral lesion located on the medial femoral condyle of the knee.
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Affiliation(s)
| | - Edward C. Beck
- Address correspondence to Edward C. Beck, M.D., M.P.H., Department of Orthopedic Surgery, Wake Forest Baptist Health, 1 Medical Center Blvd., Winston-Salem, NC 27101.
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22
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Nguyen JC, Green DW, Lin BF, Endo Y. Magnetic resonance evaluation of the pediatric knee after arthroscopic fixation of osteochondral lesions with biodegradable nails. Skeletal Radiol 2020; 49:65-73. [PMID: 31214727 DOI: 10.1007/s00256-019-03258-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 05/31/2019] [Accepted: 06/10/2019] [Indexed: 02/02/2023]
Abstract
PURPOSE To use magnetic resonance imaging (MRI) to investigate the knee joint of children following arthroscopic fixation of osteochondral lesions using bioabsorbable nails and to correlate these imaging findings with time from arthroscopic treatment and with risk factors at the time of imaging. MATERIALS AND METHODS Our study included postarthroscopic MRI studies from 58 children (mean age at arthroscopy, 13.8 + 2.1 years) who have undergone bioabsorbable nail fixation of unstable osteochondral lesions between February 1, 2011 and September 30, 2017. All studies were retrospectively reviewed for broken nails, intra-articular debris, and internal knee derangement. Demographic information and information pertaining to active symptoms was obtained from both MRI questionnaire that was completed at the time of the study and clinical note that preceded the study. Marginal logistic regression models estimated using generalized estimating equations (GEE) were used to identify factors associated with a broken nail and joint effusion. RESULTS A total of 104 postoperative studies were reviewed, which included 60 with symptoms and 44 without symptoms. Nail breakage was present in 38 (36.6%) studies and associated with presence of symptoms (OR 2.43, p = 0.036) and effusion (OR 2.76, p = 0.025). An effusion was present in 40 (38.5%) studies which decreased with increasing time from treatment (OR 0.89, p = 0.007) and increased with symptoms (OR 10.87, p < 0.001). Meniscal tear was present on 8 (7.7%) and chondral irregularity on 14 (13.5%) studies. CONCLUSION Broken nail, effusion, and less commonly, meniscal tears and chondral irregularity, are all complications that can arise following fixation of osteochondral lesions with bioabsorbable nails. MRI can serve as a valuable tool in assessing these complications.
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Affiliation(s)
- Jie C Nguyen
- Department of Radiology, Children's Hospital of Philadelphia, 3401 Civic Center Blvd, Philadelphia, PA, 19104, USA.
| | - Daniel W Green
- Department of Orthopedic Surgery, Hospital for Special Surgery, 535 East 70th street, New York, NY, 10021, USA
| | - Bin F Lin
- Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th street, New York, NY, 10021, USA
| | - Yoshimi Endo
- Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th street, New York, NY, 10021, USA
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Schlechter JA, Nguyen SV, Fletcher KL. Utility of Bioabsorbable Fixation of Osteochondral Lesions in the Adolescent Knee: Outcomes Analysis With Minimum 2-Year Follow-up. Orthop J Sports Med 2019; 7:2325967119876896. [PMID: 31696131 PMCID: PMC6820181 DOI: 10.1177/2325967119876896] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: Osteochondral lesions (OCLs) of the knee, whether occurring secondary to osteochondritis dissecans or a traumatic osteochondral fracture, are commonly encountered in the pediatric and adolescent population. Given the potential for healing in this population, coupled with adequate surgical reduction and stability of OCL fixation, an opportunity exists to avoid a major restorative procedure and the associated substantial costs and potential morbidity. Purpose: To analyze the outcomes of bioabsorbable fixation of OCLs in the adolescent knee at a minimum of 2 years. Study Design: Case series; Level of evidence, 4. Methods: An institutional review board–approved retrospective review was performed of patients younger than 18 years who underwent bioabsorbable fixation of an OCL of the knee with a minimum 2-year follow-up. Patient demographics, operative details, and postoperative clinical findings were detailed and recorded. All cases were performed by a single surgeon. Results: There were 38 patients treated surgically for an OCL between 2009 and 2016. Of these, 38 patients (mean age, 14.7 years) were evaluated at a mean of 59 months. OCL fixation consisted of a mean of 1.4 bioabsorbable screws and 1.5 darts. At final follow-up, mean pre- and postoperative Tegner scores were 6.6 and 6.4, respectively, while Lysholm and Pediatric International Knee Documentation Committee scores were 89.8 and 88.1, respectively. A total of 6 patients underwent secondary procedures postoperatively. One patient required a secondary procedure related to OCL fixation, which was secondary to a proud implant. The other secondary procedures included second-look arthroscopic surgery for pain after an injury postoperatively, planned anterior cruciate ligament reconstruction, staged medial patellofemoral ligament reconstruction, and manipulation under anesthesia for arthrofibrosis (n = 2). None of the 32 patients required a revision cartilage procedure at the time of final follow-up. Conclusion: The use of bioabsorbable implants in the adolescent knee appears to be a safe and efficacious treatment with good functional outcomes at long-term follow-up and a low revision rate. Additional long-term multisurgeon and multicenter trials with a larger cohort are needed to further elucidate the role of bioabsorbable fixation of an OCL in the adolescent knee.
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Affiliation(s)
- John A Schlechter
- Children's Hospital of Orange County, Orange, California, USA.,Riverside University Health System Medical Center, Moreno Valley, California, USA
| | - Shawn V Nguyen
- Riverside University Health System Medical Center, Moreno Valley, California, USA
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24
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Filardo G, Andriolo L, Soler F, Berruto M, Ferrua P, Verdonk P, Rongieras F, Crawford DC. Treatment of unstable knee osteochondritis dissecans in the young adult: results and limitations of surgical strategies-The advantages of allografts to address an osteochondral challenge. Knee Surg Sports Traumatol Arthrosc 2019; 27:1726-1738. [PMID: 30523367 DOI: 10.1007/s00167-018-5316-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/04/2018] [Indexed: 12/24/2022]
Abstract
Joint surface incongruence resulting from osteochondritis dissecans (OCD) alters the articular physiologic congruence, increasing the contact stress on adjacent joint surfaces and accelerating wear and the cascade of joint degeneration. Accordingly, the restoration of articular surface integrity is of major importance, especially in young adults where, in lesions left untreated or following simple fragment excision, early osteoarthritis can be anticipated. Therefore, the treatment algorithm in unstable knee OCD of the young adult foresees surgical options to restore the articular surface. Several procedures have been proposed, including refixation of the detached fragment bone marrow stimulation, osteochondral autograft implantation, fresh osteochondral allograft transplantation, and cell-based or cell-free regenerative techniques. The aim of this review was to summarize the evidence for these surgical strategies, reporting their results and limitations. The overall evidence documents positive results for each of the assorted surgical procedures applied to treat unstable OCD, thus indicating support for their selected use to treat osteochondral defects paying particular attention to their specific indications for the lesion characteristics. The fixation of a good quality fragment should be pursued as a first option, while unfixable small lesions may benefit from autografts. For large lesions, available cell-based or cell-free osteochondral scaffold are a feasible solution but with limitation in terms of regenerated tissue quality. In this light, fresh allografts may offer articular surface restoration with viable physiologic osteochondral tissue providing a predictably successful outcome, and therefore they may currently represent the most suitable option to treat unstable irreparable OCD lesion in young adults. LEVEL OF EVIDENCE: V.
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Affiliation(s)
| | - Luca Andriolo
- Clinica Ortopedica e Traumatologica II, IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano,1/10, 40136, Bologna, Italy.
| | - Francesc Soler
- Traumadvance Orthopaedic Group, Terrassa, Barcelona, Spain
| | | | - Paolo Ferrua
- Dept. of Knee Surgery, ASST Pini-CTO, Milan, Italy
| | - Peter Verdonk
- Department of Orthopaedic Surgery, Department of Orthopaedic Surgery, Monica Hospitals, Monica Research Foundation, University Hospital, Antwerp, Belgium
| | - Frederic Rongieras
- Service de chirurgie orthopédique et traumatologique, Hôpital d'instruction des armées Desgenettes, Univ Lyon, Université Claude Bernard Lyon 1, Lyon, France
| | - Dennis C Crawford
- Department of Orthopaedics and Rehabilitation, Oregon Health & Science University, Portland, Oregon, USA
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25
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Abstract
Juvenile osteochondritis dissecans (JOCD) is a joint disorder of the subchondral bone and articular cartilage that affects skeletally immature patients. The aetiology of JOCD is unknown and the natural history is poorly characterized in part due to inconsistent and largely retrospective literature. Most OCD in children and adolescents presents as a stable lesion amenable to non-operative treatment or minimally invasive drilling. However, unstable forms can require a more aggressive approach. This article reviews the most recent literature available and focuses on the pathophysiology, diagnosis and treatment of JOCD of the knee.
Cite this article: EFORT Open Rev 2019;4:201-212. DOI: 10.1302/2058-5241.4.180079
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Affiliation(s)
- Javier Masquijo
- Department of Pediatric Orthopaedics, Sanatorio Allende, Córdoba, Argentina
| | - Alpesh Kothari
- Department of Paediatric Orthopaedics, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
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26
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Limitation of in-situ arthroscopic fixation for stable juvenile osteochondritis dissecans in the knee. J Pediatr Orthop B 2018; 27:516-521. [PMID: 29944609 DOI: 10.1097/bpb.0000000000000531] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
UNLABELLED Current treatment algorithms for stable juvenile osteochondritis dissecans (JOCD) of the knee have not been established. For arthroscopically stable lesion, in-situ arthroscopic fixation with bioabsorbable pins was introduced as a more desirable approach because of less surgical morbidity and faster recovery. However, there is a paucity of literature that concludes on its efficacy. The aim of this study is to determine the efficacy and limitation of in-situ arthroscopic fixation on stable JOCD lesion in the knee. Ninety-six patients with 110 affected knees were reviewed. Subsequently, patients who underwent in-situ arthroscopic fixation for arthroscopically stable JOCD lesions were grouped for further analysis. Arthroscopic lesion stability was graded according to the Guhl's grading system from the surgical description of each lesion. The grade I and II were defined as 'stable' lesions. The lesion status was also evaluated with the MRI grading system described by Dipaola in preoperative images retrospectively. The grade I and II lesions were also defined as 'stable' and more than III as 'unstable'. Clinical outcomes were evaluated by the Lysholm score at the final office visit. If the patient had a revision surgery, the case was classified as a complete failure. There were 13 lesions in 13 patients with open physis treated with in-situ arthroscopic fixation using bioabsorbable pins. In this population, radiographical lesion status and the Lysholm score were significantly improved in 10 cases (preoperative: 77.5±11.2, postoperative: 98.9±3.1, P=0.002); however, we found three revision cases (failure rate, 23%). Of these revision cases, all lesions were graded as 'unstable' in MRI. In this series, the failure rate was 23% for in-situ arthroscopic fixation for arthroscopically stable JOCD lesion of the knee. Because of the potential risk for underestimation of lesion instability, we strongly suggest that this less invasive approach should be chosen with great care for the lesion that presents arthroscopically stable, but as unstable status on MRI. LEVEL OF EVIDENCE Level IV, case series.
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Abstract
BACKGROUND Cartilage defects around the knee joint frequently occur in the region of the medial femoral condyle and the retropatellar cartilage surface. The distinction between local cartilage defects and large area degenerative cartilage lesions is very important for both prognosis and surgical therapy. The size and position of the lesion, the underlying pathomechanism and the age of the patient are very important factors which should be considered in the therapy algorithm for optimal cartilage defect restoration. Important cofactors such as stability, long leg axis and muscle balance should be taken into account. AIM Current procedures for cartilage repair of the knee joint and their results are summarized in this article. In addition, the necessity of precise and comprehensive preoperative clinical and radiological diagnostics is displayed to be able to treat co-pathologies in order to enable a successful repair of the cartilage defect. RESULTS AND CONCLUSIONS Preoperative planning of cartilage-repair techniques usually includes x‑ray images and a magnetic resonance imaging (MRI) examination. If MRI is not available, an arthro-computed tomography could be an alternative. Modern and routinely used procedures for cartilage repair at the knee joint are microfracture, autologous matrix-induced chondrogenesis, autologous chondrocyte transplantation, matrix-induced autologous chondrocyte implantation and osteochondral transplantation. Successful surgical cartilage-repair surgeries require a correct and individualized indication, addressing of copathologies and a standardized rehabilitation that is adapted to the surgical procedure. Evidence-based criteria for an exact time point for the return to sports according to individually operative cartilage repair techniques currently do not exist.
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28
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Gorbachova T, Melenevsky Y, Cohen M, Cerniglia BW. Osteochondral Lesions of the Knee: Differentiating the Most Common Entities at MRI. Radiographics 2018; 38:1478-1495. [PMID: 30118392 DOI: 10.1148/rg.2018180044] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Several pathologic conditions may manifest as an osteochondral lesion of the knee that consists of a localized abnormality involving subchondral marrow, subchondral bone, and articular cartilage. Although understanding of these conditions has evolved substantially with the use of high-spatial-resolution MRI and histologic correlation, it is impeded by inconsistent terminology and ambiguous abbreviations. Common entities include acute traumatic osteochondral injuries, subchondral insufficiency fracture, so-called spontaneous osteonecrosis of the knee, avascular necrosis, osteochondritis dissecans, and localized osteochondral abnormalities in osteoarthritis. Patient demographics, the clinical presentation, and the role of trauma are critical for differential diagnosis. A localized osteochondral defect can be created acutely or can develop as an end result of several chronic conditions. MRI features that aid in diagnosis include the location and extent of bone marrow edema, the presence of a fracture line, a hypointense area immediately subjacent to the subchondral bone plate, and deformity of the subchondral bone plate. These findings are essential in diagnosis of acute traumatic injuries, subchondral insufficiency fracture, and its potentially irreversible form, spontaneous osteonecrosis of the knee. If the lesion consists of a subchondral region demarcated from the surrounding bone, the demarcation should be examined for completeness and the presence of a "double-line sign" that is seen in avascular necrosis or findings of instability, which are important for proper evaluation of osteochondritis dissecans. Subchondral bone plate collapse, demonstrated by the presence of a depression or a fluid-filled cleft, can be seen in advanced stages of both avascular necrosis and subchondral insufficiency fracture, indicating irreversibility. Once the diagnosis is established, it is important to report pertinent MRI findings that may guide treatment of each condition. ©RSNA, 2018 An earlier incorrect version of this article appeared online. This article was corrected on August 23, 2018.
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Affiliation(s)
- Tetyana Gorbachova
- From the Department of Radiology, Einstein Healthcare Network, 5501 Old York Rd, Philadelphia, PA 19141 (T.G, M.C., B.W.C.) and Department of Radiology, University of Alabama at Birmingham, Birmingham, Ala (Y.M.)
| | - Yulia Melenevsky
- From the Department of Radiology, Einstein Healthcare Network, 5501 Old York Rd, Philadelphia, PA 19141 (T.G, M.C., B.W.C.) and Department of Radiology, University of Alabama at Birmingham, Birmingham, Ala (Y.M.)
| | - Micah Cohen
- From the Department of Radiology, Einstein Healthcare Network, 5501 Old York Rd, Philadelphia, PA 19141 (T.G, M.C., B.W.C.) and Department of Radiology, University of Alabama at Birmingham, Birmingham, Ala (Y.M.)
| | - Brett W Cerniglia
- From the Department of Radiology, Einstein Healthcare Network, 5501 Old York Rd, Philadelphia, PA 19141 (T.G, M.C., B.W.C.) and Department of Radiology, University of Alabama at Birmingham, Birmingham, Ala (Y.M.)
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Kubo H, Oommen PT, Hufeland M, Heusch P, Laws HJ, Krauspe R, Pilge H. Osteochondritis dissecans shows a severe course and poor outcome in patients with juvenile idiopathic arthritis: a matched pair study of 22 cases. Rheumatol Int 2018; 38:1705-1712. [DOI: 10.1007/s00296-018-4100-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 07/07/2018] [Indexed: 11/25/2022]
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30
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Chan C, Richmond C, Shea KG, Frick SL. Management of Osteochondritis Dissecans of the Femoral Condyle. JBJS Rev 2018; 6:e5. [DOI: 10.2106/jbjs.rvw.17.00005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Abstract
BACKGROUND Sports injuries are common in pediatric and adolescent patients and the evaluation and treatment of these injuries continues to evolve. The purpose of this review is to provide a comprehensive appraisal of the literature, highlighting recent updates on sports-related knee injuries in the pediatric athlete. We specifically examined literature on tibial spine fractures, osteochondritis dissecans (OCD) of the knee, and patellar instability. Because of the volume of literature on the subject, pediatric, and adolescent anterior cruciate ligament injuries were not included in this review. METHODS An electronic search of the PubMed, EMBASE, and Google Scholar databases was performed for keywords related to pediatric: tibial spine fractures, patellar instability, and osteochondritis dissecans (OCD). Search results were filtered by publication date to yield articles published electronically or in print on or after January 1, 2013. Papers were selected based on expert opinion and consensus by the authors and included if deemed to have contributed important findings to the above topics. RESULTS A total of 31 articles were deemed to have contributed significant findings to the literature: 5 tibial spine, 17 patellar instability, and 9 OCD. The level of evidence for most studies was either level III or IV. CONCLUSIONS The optimal treatment for tibial spine fractures remains controversial. The evaluation of risk factors for recurrent patellar instability is important in determining the optimal treatment strategy following first-time patellar dislocation. Future multicenter studies on pediatric OCD have the potential to further understanding of this difficult problem. High-level, comparative outcomes research on a variety of pediatric sports related injuries is lacking and this review may help inform topics for future study. LEVEL OF EVIDENCE Level IV-literature review.
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32
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Accadbled F, Vial J, Sales de Gauzy J. Osteochondritis dissecans of the knee. Orthop Traumatol Surg Res 2018; 104:S97-S105. [PMID: 29197636 DOI: 10.1016/j.otsr.2017.02.016] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 02/20/2017] [Accepted: 02/28/2017] [Indexed: 02/02/2023]
Abstract
Osteochondritis dissecans (OCD) of the knee is an idiopathic, focal, subchondral-bone abnormality that can cause instability or detachment of a bone fragment and overlying articular cartilage, with subsequent progression to osteoarthritis. The diagnosis is usually made during adolescence. Mechanical factors play a major role in the pathophysiology of OCD. When the radiographic diagnosis is made early in a patient with open physes, healing can often be obtained simply by restricting sports activities. The degree of lesion instability can be assessed by magnetic resonance imaging. When the lesion remains unstable and the pain persists despite a period of rest, surgery is indicated. Arthroscopic exploration is always the first step. Drilling of the lesion produces excellent outcomes if the lesion is stable. Unstable lesions require fixation and, in some cases, bone grafting. Defects must be filled, depending on their surface area. Although many surgical techniques are available, the therapeutic indications are now standardized.
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Affiliation(s)
- F Accadbled
- Service de chirurgie orthopédique et traumatologique, hôpital des enfants, CHU de Toulouse, 330, avenue de Grande-Bretagne, 31059 Toulouse cedex 9, France.
| | - J Vial
- Service de radiologie, hôpital des enfants, CHU de Toulouse, France
| | - J Sales de Gauzy
- Service de chirurgie orthopédique et traumatologique, hôpital des enfants, CHU de Toulouse, 330, avenue de Grande-Bretagne, 31059 Toulouse cedex 9, France
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Haeri Hendy S, de SA D, Ainsworth K, Ayeni OR, Simunovic N, Peterson D. Juvenile Osteochondritis Dissecans of the Knee: Does Magnetic Resonance Imaging Instability Correlate With the Need for Surgical Intervention? Orthop J Sports Med 2017; 5:2325967117738516. [PMID: 29164166 PMCID: PMC5692145 DOI: 10.1177/2325967117738516] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Several magnetic resonance imaging (MRI) classification systems have been developed to determine the degree of instability of juvenile osteochondritis dissecans (JOCD) lesions. Our current practice involves correlating the patients' symptoms with their MRI findings, but there are many cases in which this correlation is poor and results in incorrect classification of the stability of a JOCD lesion. PURPOSE To determine whether certain MRI findings of JOCD instability are associated with the necessity for arthroscopic intervention to assess lesion stability. A secondary objective was to determine the interobserver agreement of the Kijowski et al (2008) MRI criteria for osteochondritis dissecans (OCD) instability. STUDY DESIGN Case series; Level of evidence, 4. METHODS A retrospective review was performed of patients who had documented femoral condyle OCD lesions, had open growth plates, and had been evaluated with serial MRI examinations. Each OCD lesion on MRI was classified according to the Kijowski classification as either stable or likely unstable. RESULTS The study included 16 patients (17 knees) with 49 MRI examinations. The initial MRI lesion was graded as stable in 59% (10/17), and 7 of these remained stable throughout the study period, with only 1 requiring operative intervention. Two became unstable on MRI, with 1 requiring surgery and 1 reverting back to stable with nonoperative management. The initial MRI lesion was graded as unstable in 41% (7/17) of the knees, with 2 of these becoming stable on MRI during the follow-up period with nonoperative management. The other 5 lesions remained unstable, with 3 eventually requiring surgery. The most important finding in this study was that MRI instability is a poor predictor of the necessity for surgery for JOCD lesions. The correlation between a nonradiologist and a trained musculoskeletal radiologist in the interpretation of the MRI criteria by Kijowski et al showed only substantial agreement for multiple cysts. CONCLUSION MRI criteria for OCD instability in the pediatric knee do not always correlate with the necessity for surgery. They are, at times, a helpful adjunct to the management of these patients; however, care must be taken to interpret all available clinical and radiographic information in surgical decision making.
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Affiliation(s)
- Simon Haeri Hendy
- Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Darren de SA
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, Hamilton, Ontario, Canada
| | - Kelly Ainsworth
- Department of Radiology, McMaster University Medical Centre, Hamilton, Ontario, Canada
| | - Olufemi R. Ayeni
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, Hamilton, Ontario, Canada
| | - Nicole Simunovic
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Ontario, Canada
| | - Devin Peterson
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University Medical Centre, Hamilton, Ontario, Canada
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Pareek A, Sanders TL, Wu IT, Larson DR, Saris DBF, Krych AJ. Incidence of symptomatic osteochondritis dissecans lesions of the knee: a population-based study in Olmsted County. Osteoarthritis Cartilage 2017; 25:1663-1671. [PMID: 28711583 PMCID: PMC5798004 DOI: 10.1016/j.joca.2017.07.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Revised: 07/03/2017] [Accepted: 07/05/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To (1) define population-based incidence of knee Osteochondritis dissecans (OCD) lesions using the population of Olmsted County, (2) examine trends over time, and (3) evaluate rate of surgical management over time. METHOD Study population included 302 individuals who were diagnosed with knee OCD lesions between January 1, 1976 and December 31, 2014. Complete medical records were reviewed to extract injury and treatment details. Age- and gender-specific incidence rates were calculated and adjusted to the 2010 US population. Poisson regression analyses were performed to examine incidence and surgery trends by age, gender, and calendar period. RESULTS Overall age- and gender-adjusted incidence annual incidence of knee OCD lesions was 6.09 per 100,000 person-years. The incidence was significantly higher (P < 0.001) in males (8.82, 95% CI 7.63 to 10.00 per 100,000) compared to females (3.32, 95% CI 2.61 to 4.04 per 100,000). Age- and gender-specific incidence was highest in both males and females in the 11-15 years old at 39.06 and 16.15 per 100,000, respectively. In males aged 11-15 years, OCD incidence increased significantly over the study period from 20.68 in 1976-1985 to 48.16 in 2006-2014 (per 100,000). CONCLUSIONS Overall age- and gender-adjusted annual incidence of knee OCD lesions in the Olmsted Country Population was 6.09 per 100,000 person-years with a significantly higher incidence in males compared to females. The highest incidence for both males and females occurred between the ages 11-15 years. Trends indicate increasing OCD incidence in younger males and decreasing surgical management in females over the last decade.
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Affiliation(s)
- Ayoosh Pareek
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Thomas L. Sanders
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Isabella T. Wu
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
| | - Dirk R. Larson
- Health Sciences Research, Mayo Clinic, Rochester, Minnesota, USA
| | - Daniel BF Saris
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA,University of Twente, Enschede, The Netherlands,Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Aaron J. Krych
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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