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Insights Imaging 2020 Jun 29;11(1):80. Epub 2020 Jun 29.

Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL, 32224, USA.

Spinal osseous neoplasms are frequently encountered and can be challenging when present as solitary lesions. Familiarity with the range of benign and malignant spinal pathology can help the radiologist formulate a comprehensive differential diagnosis. This article focuses on the spectrum of extradural spinal tumors, accounting for the majority of primary spinal tumors, by comparing the epidemiology, pathophysiology, clinical presentation, and characteristic imaging appearance of these lesions. Read More

Radiol Case Rep 2020 Aug 18;15(8):1275-1279. Epub 2020 Jun 18.

Diagnostic Radiology, Tbilisi Central Hospital, Georgia.

Osteoid osteoma is a benign osteoblastic tumor characterized mostly by presence of one nidus, butvery infrequentlyniduses can be multiple. Radiofrequency ablation is a well-established treatment method for this disease. We report a case of a 19-year-old male patient with bifocal osteoid osteoma which was partially missed on the initial magnetic resonance imaging and treated successfully with two sessions of radiofrequency ablation. Read More

FP Essent 2020 Jun;493:11-21

UNC Department of Family Medicine, 590 Manning Drive, Chapel Hill, NC 27599.

Primary benign bone tumors are uncommon and most often affect children and young adults. They typically are detected incidentally on imaging, though some patients present with pain, swelling, or other symptoms. The four main categories of benign bone tumor are: bone-forming (eg, osteoid osteoma, osteoblastoma, fibrous dysplasia, enostosis), cartilage-forming (eg, osteochondroma, enchondroma), connective tissue, and vascular; the latter two are rare. Read More

Skeletal Radiol 2020 Jun 19. Epub 2020 Jun 19.

Department of Radiology, Cliniques Universitaires Saint-Luc, UCLouvain, Avenue Hippocrate, 10, B-1200, Brussels, Belgium.

Osteoid osteoma (OO), a small bone tumor relatively common in young subjects, frequently involves the hip. In addition to typical findings, we emphasize unsuspected clinical and imaging features including painless OO causing limping gait, non-visibility of totally mineralized nidus, absence of hyperostosis or adjacent edema, and recurrence at distance from the initial location. We also discuss the option of medical treatment for some cases of deep hip locations. Read More

Br J Radiol 2020 Jun 24:20200266. Epub 2020 Jun 24.

Department of Radiology and Imaging, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.

Osteoid osteoma is a painful benign bone tumour of children and young adults with characteristic clinico-radiological features depending upon the location of the lesion. Intraoperative visualisation of the nidus is difficult and therefore curative surgery is often associated with excessive bone removal, significant perioperative morbidity and potential need of bone grafting procedures. With advancement in cross-sectional imaging and radiofrequency ablation (RFA) technology, CT-guided RFA has emerged as the treatment of choice for the osteoid osteoma. Read More

Eur Radiol 2020 Jun 9. Epub 2020 Jun 9.

Department of Radiology, Langone Orthopedic Hospital, 301 East 17th St, New York, 10021, USA.

Objectives: CT-guided radiofrequency ablation (CT-RFA) is considered to be the gold standard for treatment of osteoid osteoma (OO) yet treatment failures (TFs) continue to be reported. This systematic review was conducted to evaluate factors associated with TF, such as ablation time, lesion location, and patient age as well as evaluating how TF has trended over time.

Methods: Original studies reporting on patients undergoing CT-RFA of OO published between 2002 and 2019 were identified. Read More

J Belg Soc Radiol 2020 May 6;104(1):22. Epub 2020 May 6.

Clinique universitaire St Luc, BE.

We report a case of intra-articular osteoid osteoma (IAOO) of the elbow, in order to point out the clinical and imaging features which made the case challenging and caused a diagnostic delay. Read More

Radiol Case Rep 2020 Jun 8;15(6):722-726. Epub 2020 Apr 8.

Department of Orthopedic, Trauma and Plastic Surgery, University Hospital Leipzig, Liebigstr. 20, 04103 Leipzig, Germany.

We present the case of a 59-year-old male patient with unrecognized osteoid osteoma in radiography as well as in magnetic resonance imaging. Computed tomography revealed osteoid osteoma that was successfully treated with percutaneous computed tomography guided radiofrequency ablation. The osseous pathology was underestimated on magnetic resonance imaging in the presented case and bone marrow edema led to incorrect diagnosis. Read More

Skeletal Radiol 2020 Apr 8. Epub 2020 Apr 8.

Department of Radiology and Imaging Sciences, Division of Interventional Radiology and Image-Guided Medicine, Emory University School of Medicine, 100 Woodruff Circle, Atlanta, GA, USA.

Objective: Although radiofrequency ablation is well validated for treatment of osteoid osteoma, newer technologies, namely cryoablation, have been less thoroughly studied. The purpose is to perform a systematic review and pooled analysis of percutaneous ablation technologies for treatment of osteoid osteoma with subset analysis of intra-articular and spinal tumors.

Material And Methods: A total of 36 of 79 identified manuscripts met inclusion criteria, comprising 1863 ablations in 1798 patients. Read More

Rev Bras Ortop (Sao Paulo) 2020 Feb 19;55(1):115-120. Epub 2019 Dec 19.

Medicina Nuclear, Clínica Cintilius - Medicina Nuclear, Blumenau, SC, Brasil.

Osteoid osteoma is a benign neoplasm commonly found in young men, but that can be found in every age, which affects mainly long bones, clinically characterized by continuous and limiting pain that is relieved by salicylates. It is a small lesion composed of immature osteoid tissue, central hypervascularization and surrounding sclerotic area. Its diagnosis is performed by the clinic and aided by imaging tests, such as common radiography and computed tomography. Read More

Int J Surg Case Rep 2020 19;68:8-11. Epub 2020 Feb 19.

University of Health Sciences, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Department of Orthopaedic Surgery, Ankara, Turkey. Electronic address:

Introduction: Osteoid osteomas are benign osteoblastic bone tumors mostly seen in patients in the second or third decade of life, and they most frequently involve the femur and tibia. Hallux osteoid osteoma is an extremely rare occurrence with only 14 reported cases to date.

Presentation Of Case: A 46-year-old woman with a right hallux pain for the last 18 months was admitted. Read More

JBJS Case Connect 2020 Jan-Mar;10(1):e0090

Department of Orthopaedic Surgery, Cleveland Clinic, Cleveland, Ohio.

Case: We present a case report of an 18-year-old woman who presented to a general surgeon with a several month history of intermittent right upper quadrant pain, strongly suggestive of symptomatic cholelithiasis and underwent a laparoscopic cholecystectomy. She was eventually found to have an osteoid osteoma (OO) of the right eighth rib. She was treated with radiofrequency ablation with complete resolution of symptoms 1 month after treatment. Read More

Radiol Med 2020 Jun 10;125(6):578-584. Epub 2020 Feb 10.

Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.

Interventional radiology is today considered the first-line treatment for osteoid osteoma both in the form of needle-guided technique of ablation (Radiofrequency) and of needleless technique (magnetic resonance-guided focused ultrasound surgery). The follow-up study of the procedures is mainly clinical, since the disappearance of pain is consistent with the success of the procedure. However, due to the minimally invasive and innovative nature of the approach, interpretation of the follow-up imaging could be ambiguous and misleading. Read More

Orv Hetil 2020 Feb;161(7):263-268

Általános Orvostudományi Kar, Ortopédiai Klinika, Semmelweis Egyetem Budapest, Üllői út 78/B, 1082.

Osteoid osteoma is a rare benign bone tumor displaying typical clinical symptoms and radiological signs in most cases. Characteristic symptoms are nocturnal pain alleviated by non-steroid antiinflammatory drugs. Radiological findings are also characteristic, the central osteolytic 'nidus' is surrounded by reactive sclerosis. Read More

Diagn Interv Imaging 2020 Apr 27;101(4):193-207. Epub 2020 Jan 27.

Department of Radiology, Lariboisiere Hospital, AP-HP, 75010 Paris, France; Université de Paris, Diderot Paris 7, B30A CNRS UMR 7052, 75010 Paris, France.

Dactylitis refers to a global swelling of a finger or a toe giving it a clinical sausage-shape presentation. It is an extremely suggestive symptom as it guides the rheumatologist towards a shortlist of diagnoses. However, radiologists are less familiar with dactylitis. Read More

Pathologe 2020 Mar;41(2):106-115

Knochentumor-Referenzzentrum, Institut für Pathologie, Universitätsspital Basel, Universität Basel, Schönbeinstrasse 40, Basel, 4031, Schweiz.

The integrative evaluation of histology and corresponding imaging is essential for the classification of bone tumors. Until a few years ago, there were hardly any molecular markers that could be used for diagnostic purposes. However, exome- and genome-wide sequencing analyses have since uncovered a number of tumor-specific aberrations that can be very helpful in ambiguous cases. Read More

Cureus 2019 Dec 19;11(12):e6420. Epub 2019 Dec 19.

Orthopaedics, National and Kapodistrian University of Athens, KAT Hospital, Athens, GRC.

Intra-articular osteoid osteomas are a rare cause of articular pain. Their diagnosis can be challenging due to their non-specific clinical presentation and imaging characteristics. We present the case of a young soccer player with a 12-month history of anterior knee pain that was first attributed to Sinding Larsen Johansson syndrome and then to Hoffa's syndrome. Read More

Arch Bone Jt Surg 2019 Nov;7(6):566-570

Bone and Joint Reconstruction Research Center, Shafa Orthopedic Hospital, Iran University of Medical Science, Tehran, Iran.

Osteoid osteoma (OO) is a small tumor of bone that affects the spine in 10% of the cases. The tumor has a tendency to neural arc, and the lumbar spine is the most common site of presentation. Lesions of the odontoid process are very rare. Read More

Clin Imaging 2020 May 9;61:27-32. Epub 2020 Jan 9.

Department of Radiology, Interventional Radiology Service, Memorial Sloan Kettering Cancer Center, New York, NY, USA. Electronic address:

Purpose: To examine the diagnostic yield of intraprocedural percutaneous biopsy performed at the time of radiofrequency ablation of suspected Osteoid Osteoma (OO) and identify technical and nidus-specific factors associated with diagnostic adequacy.

Materials And Methods: Following IRB approval, a total of 42 patients (male: 28, female: 14; mean age: 29 years) who underwent intraprocedural biopsy immediately prior to RFA between June 2010 and June 2017 were retrospectively identified. The nidi were located in various locations. Read More

Int J Surg Case Rep 2020 9;66:162-164. Epub 2019 Dec 9.

Bahrain Defence Force Hospital-Royal Medical Services, Riffa, Bahrain. Electronic address:

Introduction: Osteoid osteomas (OO) are small, well-defined, benign bone tumors of the young that are commonly found in long bones. In rare circumstances, when present elsewhere, they can mimic the symptoms of other pathologies pertaining to that area.

Presentation Of Case: We present such case in which an "OO" of the coracoid process led to a 2-year delay in diagnosis and management of a young male due to the presenting symptoms resembling those of other shoulder pathologies. Read More

JBJS Case Connect 2019 Dec;9(4):e0043

Department of Orthopaedic Surgery, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan.

Case: A 17-year-old man experienced night pain in his right hallux. Radiographs revealed a lytic lesion in the proximal phalanx of the right hallux. Magnetic resonance imaging showed a low-signal intensity mass on T1-weighted sequences and isointense-high-signal intensity on T2-weighted sequences. Read More

BMC Musculoskelet Disord 2019 Dec 1;20(1):579. Epub 2019 Dec 1.

The National Unit for Orthopedic Oncology, Tel Aviv Sourasky Medical Center affiliated with Tel Aviv University, Tel Aviv, Israel.

Background: Osteoid osteomas are benign bone neoplasms that may cause severe pain and limit function. They are commonly treated by radiofrequency ablation (RFA) through a needle inserted into the nidus of the lesion under CT guidance, which is associated with exposure of young patients to relatively high dose of radiation. The objective of this study was to investigate the amount of radiation, effectiveness and safety of an alternative imaging approach, the 3D image-guided (O-arm) technology and the Stealth navigation. Read More

Biomed Res Int 2019 29;2019:8206913. Epub 2019 Oct 29.

Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao 266003, China.

Objective: To explore the incidence and significance of intra- and extra-osseous edema associated with benign tumors and tumor-like diseases.

Methods: Magnetic resonance imaging (MRI) data from 300 benign osseous tumors and tumor-like diseases diagnosed by pathology were retrospectively reviewed. Borderline tumors, cases associated with pathological fractures, and skull lesions were excluded from the study. Read More

Contemp Clin Dent 2018 Oct-Dec;9(4):652-655

Advanced Centre for Orthodontics and Multi-specialty Family Dental Care, Bhopal, Madhya Pradesh, India.

Osteoma is benign osteogenic lesions characterized by proliferation of either cancellous or compact bone and can be central, peripheral, or extraskeletal. The most common site is in the skull. When affecting the facial bones, they are frequently found in the mandible, the most common locations being the posterior lingual surface and the mandible angle area. Read More

J Am Podiatr Med Assoc 2019 Jul;109(4):334-337

Osteoid osteoma is a benign tumor originating from osteoblasts, and it is mostly seen in long bones of lower limbs. The distal phalanx of the foot is an atypical location for an osteoid osteoma, and lesions occurring in this location may be a diagnostic challenge. A 22-year-old man presented with a complaint of severe pain on the second distal phalanx of his right foot. Read More

Rev Esp Med Nucl Imagen Mol 2020 Jan - Feb;39(1):47-48. Epub 2019 Nov 19.

Department of Nuclear Medicine, The Affiliated Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan, República Popular China. Electronic address:

Rofo 2020 Apr 20;192(4):335-342. Epub 2019 Nov 20.

Department of Radiology, Ludwig-Maximilians-University Munich, München, Germany.

Purpose:  While ostoeid osteomas (OO) are typically located in long tubular bones, OO occurring elsewhere are referred to as "atypical". Aim of our study was to review the characteristics of atypically located OO, course of symptoms and therapy, as well as clinical outcome, safety, and patient satisfaction of radiofrequency ablation (RFA).

Materials And Methods:  In the period from 04/01 to 07/13, 33 patients were treated using thermal ablation (RFA or laser), partly with low temperature and short duration technique. Read More

Indian J Radiol Imaging 2019 Jul-Sep;29(3):253-257. Epub 2019 Oct 30.

Department of Radiology, Interventional Radiology, University of Missouri- Columbia, One Hospital Drive, Columbia, MO, 65212, USA.

Purpose: Percutaneous radio-frequency ablation is a minimally invasive treatment option for osteoid osteomas. The ablation process is straightforward in the more common locations like the femur/tibia. Surgery has historically been the gold standard, but is currently used in lesions, that may not be effectively and safely ablated, i. Read More

Cureus 2019 Aug 19;11(8):e5425. Epub 2019 Aug 19.

Orthopaedic Surgery, Brooke Army Medical Center, Fort Sam Houston, USA.

A 16-year-old female soccer player presented with an eight-month-old, insidious right-hip pain. The imaging workup demonstrated a cortically based lytic lesion at the level of the lesser trochanter with surrounding sclerosis, adjacent periosteal reaction, and a small soft-tissue mass. A biopsy revealed findings related to an osteoid-forming lesion with features of nuclear atypia. Read More

World Neurosurg 2020 Jan 11;133:e327-e341. Epub 2019 Sep 11.

Spine Surgery Unit, Neurosurgical Department, Tel-Aviv Medical Center, Tel-Aviv, Israel.

Background: Medical implications of 3-dimensional (3D) printing technology have evolved and are increasingly used. Surgical spine oncology involves at times complex resection using various surgical approaches and unique spinal reconstruction. As high general complication rates, including hardware failure, are reported, careful preoperative planning and optimized fixation techniques should be performed. Read More

J Bone Oncol 2019 Oct 20;18:100256. Epub 2019 Aug 20.

Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

Osteoid osteoma (OO) is a benign bone tumor producing non-mineralized bone matrix (i.e., osteoid). Read More

Neurocirugia (Astur) 2020 May - Jun;31(3):146-150. Epub 2019 Sep 2.

Servicio de Traumatología y Cirugía Ortopédica, Hospital Universitario Badajoz, Badajoz, España. Electronic address:

We report an uncommon case of osteoid osteoma recurring as an aggressive osteoblastoma of the spine. A 15-years-old male consulted in our department with long-term painful scoliosis. The CT-scans and MRI revealed a sclerotic bone forming tumor of 7mm diameter consistent with a osteoid osteoma. Read More

Rev Med Suisse 2019 Aug;15(659):1462-1465

Service de radiologie, HUG, 1211 Genève 14.

Osteoid osteoma is frequent benign tumor, descripted initially by Bergstrand in 1930 followed by Jaffe in 1935. The painful feature of the osteoid osteoma explains the specific consideration by the medical community for this entity. The debate was focused on pathologic and imaging pattern as well as the treatment modalities. Read More

Rofo 2019 Sep 20;191(S 02):S127-S129. Epub 2019 Aug 20.

Institut für Diagnostische und Interventionelle Radiologie, Kinder- und Neuroradiologie, Universitätsmedizin Rostock.

Int J Dermatol 2019 Nov 1;58(11):e222-e224. Epub 2019 Aug 1.

Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.

Acta Orthop Traumatol Turc 2019 Sep 29;53(5):360-365. Epub 2019 Jul 29.

University of Health Sciences, Istanbul GOP Taksim Training and Research Hospital, Radiology Clinic, Istanbul, Turkey. Electronic address:

Objective: The aim of this study was to investigate the efficacy and safety of Computed Tomography (CT) guided percutaneous Radiofrequency Ablation (RFA) in the treatment of osteoid osteoma (OO).

Methods: A total of 116 patients (82 male and 34 female patients; mean age of 17.7 years; age range 13-months-42 years) who had 118 CT guided RFA treatment between June 2015 and November 2018 (42 moths) with the diagnosis of OO were included in this study. Read More

Int J Surg Case Rep 2019 8;61:14-19. Epub 2019 Jul 8.

Department of Orthopaedic Surgery, Graduate School of Medical Sciences, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan. Electronic address:

Introduction: The small size of a nidus and the extensive sclerosis around it often make it difficult to identify tumors from the surrounding normal bone by fluoroscopy, and a large amount of bone resection might be required to secure complete removal during osteoid osteoma surgery. In this report, we present the first case of radiographically invisible osteoid osteoma that was successfully resected under a robotic C-arm cone-beam computed tomography (CBCT) imaging system.

Presentation Of Case: A 14-year-old boy presented with persistent pain around the left knee joint was diagnosed with osteoid osteoma of the left distal femur. Read More

Biomed Res Int 2019 15;2019:4376851. Epub 2019 May 15.

Silopi State Hospital, Sirnak, Turkey.

Background: Osteoid osteoma (OO) is one of the most commonly occurring benign bone tumors. It constitutes 10-12% of benign bone tumors and 2-3% of primary bone tumors. In radiofrequency ablation (RFA) treatment, the cells of the tumor are thermally inactivated by the help of electrodes shaped like needles. Read More

JBJS Case Connect 2019 Apr-Jun;9(2):e0211

Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California.

Case: Intra-articular osteoid osteoma (IAOO) is a relatively rare entity and can pose a therapeutic challenge due to proximity to the cartilage surface. We present 2 cases of subchondral osteoid osteomata within the distal femur treated with excision and osteochondral grafting of the resultant defect.

Conclusions: Subchondral IAOO can pose a therapeutic challenge. Read More

Radiol Case Rep 2019 Aug 6;14(8):989-992. Epub 2019 Jun 6.

Division of Diagnostic and Molecular Imaging, Interventional Radiology and Radiation, Therapy, Fondazione Policlinico "Tor Vergata", Oxford 81, 00133 Rome, Italy.

Osteoid osteoma represents 10%-12% of all benign bone tumors, and is composed by osteoid tissue and reticular and immature bone tissue. Acetabular involvement is very rare (≤1%). In this case report, we describe the treatment of an osteoid osteoma of the acetabulum of a young man using cryotherapy under fluoroscopic guide with the new XperGuide system which is used to reduce X-ray radiation dose and to have a more accurate localization of the lesion compared to computed tomography-guided or surgical ablation. Read More

Anticancer Res 2019 Jun;39(6):3053-3057

Institute of Clinical Radiology and Nuclear Medicine, University Medical Center Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany.

Aim: Evaluation of osteoid osteoma (OO) perfusion characteristics pre and post microwave ablation (MWA) using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) with clinical follow-up.

Materials And Methods: Patients with OO underwent T1-weighted 3D DCE-MRI at 3.0T pre and post MWA. Read More

Neuroradiology 2019 Aug 3;61(8):935-942. Epub 2019 Jun 3.

Institute of Diagnostic and Interventional Radiology, Paediatric Radiology and Neuroradiology, University Medical Centre Rostock, Ernst-Heydemann-Str. 6, 18057, Rostock, Germany.

Purpose: To evaluate technical success and long-term outcome of CT-guided radiofrequency ablation (RFA) of spinal osteoid osteomas (OO) and osteoblastomas (OB) in six different European centres.

Methods: Eighty-seven patients with spinal OO (77) or OB (10) were treated with CT-guided RFA, after three-dimensional CT-guided access planning. Patient's long-term outcome was assessed by clinical examination and questionnaire-based evaluation including 10-point visual analogue scales (VAS) regarding the effect of RFA on severity of pain and limitations of daily activities. Read More

Cureus 2019 Mar 12;11(3):e4239. Epub 2019 Mar 12.

Neurosurgery, Cedars-Sinai Medical Center, Los Angeles, USA.

Osteoid osteoma is a benign primary bone tumor of unknown etiology that occurs most commonly in males during adolescence and early adulthood. Osteoid osteoma affects the spine in 20% of cases, and may cause spinal deformity, stiffness, and pain that may sometimes be worst at night. We present a novel description of a partial laminectomy with cement augmentation after resection of an osteoid osteoma. Read More

Pediatr Radiol 2019 08 25;49(9):1209-1216. Epub 2019 May 25.

Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila Via Giovanni Di Vincenzo, L'Aquila, Italy.

Background: Osteoid osteoma is a benign and painful musculoskeletal tumour that usually affects children. Current standard treatment is CT-guided radiofrequency ablation, a minimally invasive percutaneous procedure, with clinical success rates ranging between 85% and 98%. Though minimally invasive, however, this type of procedure is not free from complications. Read More

Acta Orthop Traumatol Turc 2019 Jul 16;53(4):239-247. Epub 2019 May 16.

Osmangazi University Faculty of Medicine, Department of Biostatistics, Eskisehir, Turkey.

Objective: The aim of this prospective study was to evaluate pre- and post-treatment MRI and CT findings of osteoid osteoma (OO) patients treated with radiofrequency thermo-ablation (RFTA) and to compare these findings with visual analog scale (VAS) scores.

Methods: Sixteen patients (4 females and 12 males; mean age of 18.87 ± 8. Read More

Clin Radiol 2019 07 6;74(7):570.e19-570.e20. Epub 2019 May 6.

Department of Radiology, Nuffield Orthopaedic Centre, Oxford, UK.

J Hand Surg Asian Pac Vol 2019 Jun;24(2):233-237

† Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.

A relatively rare tumor, osteoid osteoma most commonly affects the lower extremity. In 10% of the cases, it can affect the hand and wrist. We present a case of osteoid osteoma in the proximal phalanx of ring finger that was initially misdiagnosed as a soft tissue lesion. Read More

Case Rep Orthop 2019 18;2019:7626454. Epub 2019 Mar 18.

University Hospital of Grenoble-Alps (CHUGA), La Tronche, France.

We hereby describe a minimally invasive resection of a T1 pedicular osteoid osteoma next to the vertebral canal. The patient had an 18-month report of painful radiculopathy. We performed the surgery under 3D imaging guidance using navigation with an all-in-one device. Read More

BMC Musculoskelet Disord 2019 Apr 16;20(1):171. Epub 2019 Apr 16.

Dipartimento di Scienze Biomediche per la Salute, Università degli Studi di Milano, Milan, Italy.

Background: Osteoid osteoma is a benign bone-forming tumour, which very unfrequently has multifocal or multicentric presentation. We report the first known case of a multicentric, multifocal and recurrent osteoid osteoma treated using radiofrequency ablation.

Case Presentation: A 39-year-old man with two-year history of left hip pain was admitted at our Institution. Read More

Orthop Traumatol Surg Res 2019 05 8;105(3):551-556. Epub 2019 Apr 8.

Service de chirurgie orthopédique infantile, centre hospitalier universitaire de Toulouse, 31000 Toulouse, France.

Background: Intra-medullary osteosclerosis of the tibia is a rare condition characterised by chronic pain due to diaphyseal hyperostosis with no detectable triggering factor. The main differential diagnoses are stress fracture and osteoid osteoma. Of the few cases reported to date, most were in adults. Read More