OBJECTIVE: To compare the accuracy and effectiveness of orthopaedic robot-assisted minimally invasive surgery versus open surgery for limb osteoid osteoma. METHODS: A clinical data of 36 patients with limb osteoid osteomas admitted between June 2016 and June 2023 was retrospectively analyzed. Among them, 16 patients underwent orthopaedic robot-assisted minimally invasive surgery (robot-assisted surgery group), and 20 patients underwent tumor resection after lotcated by C-arm X-ray fluoroscopy (open surgery group). There was no significant difference between the two groups in the gender, age, lesion site, tumor nidus diameter, and preoperative pain visual analogue scale (VAS) scores ( P>0.05). The operation time, lesion resection time, intraoperative blood loss, intraoperative fluoroscopy frequency, lesion resection accuracy, and postoperative analgesic use frequency were recorded and compared between the two groups. The VAS scores for pain severity were compared preoperatively and at 3 days and 3 months postoperatively. RESULTS: Compared with the open surgery group, the robot-assisted surgery group had a longer operation time, less intraoperative blood loss, less fluoroscopy frequency, less postoperative analgesic use frequency, and higher lesion resection accuracy ( P<0.05). There was no significant difference in lesion resection time ( P>0.05). All patients were followed up after surgery, with a follow-up period of 3-24 months (median, 12 months) in the two groups. No postoperative complication such as wound infection or fracture occurred in either group during follow-up. No tumor recurrence was observed during follow-up. The VAS scores significantly improved in both groups at 3 days and 3 months after surgery when compared with preoperative value ( P<0.05). The VAS score at 3 days after surgery was significantly lower in robot-assisted surgery group than that in open surgery group ( P<0.05). However, there was no significant difference in VAS scores at 3 months between the two groups ( P>0.05). CONCLUSION Compared with open surgery, robot-assisted resection of limb osteoid osteomas has longer operation time, but the accuracy of lesion resection improve, intraoperative blood loss reduce, and early postoperative pain is lighter. It has the advantages of precision and minimally invasive surgery.
Humans ; Robotics ; Osteoma, Osteoid/surgery* ; Orthopedics ; Blood Loss, Surgical ; Retrospective Studies ; Neoplasm Recurrence, Local ; Minimally Invasive Surgical Procedures ; Bone Neoplasms/surgery* ; Analgesics ; Treatment Outcome

OBJECTIVE: To investigate short-term effectiveness and clinical application advantages of orthopedic robot-assisted resection for osteoid osteoma compared with traditional open surgery. METHODS: A retrospective analysis was conducted on clinical data of 48 osteoid osteoma patients who met the selection criteria between July 2022 and April 2023. Among them, 23 patients underwent orthopedic robot-assisted resection (robot-assisted surgery group), and 25 patients received traditional open surgery (traditional surgery group). There was no significant difference ( P>0.05) in gender, age, disease duration, lesion location and size, and preoperative visual analogue scale (VAS) score, and musculoskeletal tumor society (MSTS) score between the two groups. The surgical time, intraoperative blood loss, intraoperative lesion localization time, initial localization success rate, infection, and recurrence were recorded and compared. VAS scores before surgery and at 24 hours, 1, 3, 6, and 9 months after surgery and MSTS score before surgery and at 3 months after surgery were assessed. RESULTS: All patients completed the surgery successfully, with no significant difference in surgical time between the two groups ( P>0.05). Compared to the traditional surgery group, the robot-assisted surgery group had less intraoperative blood loss, shorter lesion localization time, and shorter hospitalization time, with significant differences ( P<0.05). The initial localization success rate was higher in the robot-assisted surgery group than in the traditional surgery group, but the difference between the two groups was not significant ( P>0.05). All patients in both groups were followed up, with the follow-up time of 3-12 months in the robot-assisted surgery group (median, 6 months) and 3-14 months in the traditional surgery group (median, 6 months). The postoperative MSTS scores of both groups improved significantly when compared to those before surgery ( P<0.05), but there was no significant difference in the changes in MSTS scores between the two groups ( P>0.05). The postoperative VAS scores of both groups showed a gradually decreasing trend over time ( P<0.05), but there was no significant difference between the two groups after surgery ( P>0.05). During follow-up, except for 1 case of postoperative infection in the traditional surgery group, there was no infections or recurrences in other cases. There was no significant difference in the incidence of postoperative infection between the two groups ( P>0.05). CONCLUSION Orthopedic robot-assisted osteoid osteoma resection achieves similar short-term effectiveness when compared to traditional open surgery, with shorter lesion localization time.
Humans ; Robotics ; Blood Loss, Surgical ; Osteoma, Osteoid/surgery* ; Retrospective Studies ; Treatment Outcome ; Postoperative Complications ; Bone Neoplasms/surgery*

Humans ; Osteoma, Osteoid/surgery* ; Bone Neoplasms/surgery* ; Tomography, X-Ray Computed

STUDY DESIGN: Case report.OBJECTIVES: To report a case of osteoid osteoma arising in the sacrum in a 29-year-old male patient.SUMMARY OF LITERATURE REVIEW: Osteoid osteoma is a benign osteoblastic tumor that usually arises in the long bones. Osteoid osteoma involving the sacrum is extremely rare.MATERIALS AND METHODS: A 29-year-old male patient presented with pain localized in his sacral area for 10 months. His pain was worse at night, relieved by non-steroidal anti-inflammatory drugs, and independent of physical activity. Bone scintigraphy showed increased uptake in the second sacral vertebra (S2). Computed tomography revealed a nidus located in the S2 spinous process. Magnetic resonance imaging showed bone and soft tissue edema around the nidus.RESULTS: En bloc excision including the nidus revealed a diagnosis of osteoid osteoma and provided immediate relief of the patient's long-lasting sacral pain.CONCLUSIONS: When a young patient presents with localized sacral pain that is worse at night, relieved by non-steroidal anti-inflammatory drugs, independent of physical activity, and lasts longer than expected, proper imaging studies should be performed to rule out osteoid osteoma. Although less invasive treatment modalities have been introduced, classical en bloc excision is currently the gold standard for managing osteoid osteoma.
Adult ; Diagnosis ; Edema ; Humans ; Magnetic Resonance Imaging ; Male ; Motor Activity ; Osteoblasts ; Osteoma, Osteoid ; Radionuclide Imaging ; Sacrum ; Spine

An intra-articular osteoid osteoma is a very rare cause of elbow pain, and its diagnosis and treatment remain challenging. Delayed diagnosis may lead to arthritic change of the joint. In this study, the authors present the occurrence of intra-articular osteoid osteoma in the right elbow of a 15-year-old male patient who presented with prolonged pain and limited motion owing to delayed diagnosis. After confirming the nidus of osteoid osteoma from radiographic evaluation, the lesion was completely removed arthroscopically. The patient presented a complete relief of symptoms and full range of motion. This is the first domestic report of successful arthroscopic treatment of an intra-articular osteoid osteoma of the elbow.
Adolescent ; Arthroscopy ; Delayed Diagnosis ; Diagnosis ; Elbow ; Humans ; Joints ; Male ; Osteoma, Osteoid ; Range of Motion, Articular

Osteoid osteomas are benign skeletal neoplasms that are commonly encountered in the bones of the lower extremities, but are exceedingly rare in jaw bones with a prevalence of less than 1%. This unique clinical entity is usually seen in younger individuals, with nocturnal pain and swelling as its characteristic clinical manifestations. The size of the lesion is rarely found to be more than 2 cm. We hereby report a rare case of osteoid osteoma originating from the neck of the mandibular condyle that grew to large enough proportions to result in conductive hearing loss in addition to pain, swelling and restricted mouth opening. In addition, an effort has been made to review all the documented cases of osteoid osteomas of the jaws that have been published in the literature thus far.
Hearing Loss ; Hearing Loss, Conductive* ; Jaw ; Lower Extremity ; Mandibular Condyle* ; Mouth ; Neck ; Osteoma ; Osteoma, Osteoid* ; Prevalence

Osteoid osteoma, a frequent lesions of bone, is usually intraosseous but occasionally subperiosteal. We describe the case of a 19-year-old male with knee pain caused by subperiosteal osteoid osteoma. Radiologic evaluation was performed with radiographic, computed tomography (CT), ultrasonographic (US) and magnetic resonance imaging (MRI). But the preoperative diagnosis of osteoid osteoma was delayed because of unusual imaging findings and atypical symptom. After excisional biopsy, histological examination confirmed the diagnosis of osteoid osteoma. The lesion was treated successfully with CT-guided radiofrequency ablation.
Biopsy ; Catheter Ablation ; Diagnosis ; Humans ; Knee* ; Magnetic Resonance Imaging ; Male ; Osteoma, Osteoid* ; Young Adult

An intraarticular osteoid osteoma of the knee is uncommon, and its treatment is challenging. The authors present a case of arthroscopic excision of an intraarticular osteoid osteoma in the distal femur, which was accessible through the knee joint. After confirming the nidus of the osteoid osteoma by computed tomography, the lesion was completely removed arthroscopically. The patient reported complete pain relief immediately after surgery. This case demonstrates that intraarticular osteoid osteomas in the knee joint can be treated by arthroscopic excision and that good results can be obtained.
Arthroscopy ; Femur* ; Humans ; Knee ; Knee Joint ; Osteoma, Osteoid*

Osteoid osteoma (OO) is a benign osteoblastic tumor. Its curative treatment is complete removal of the nidus, where intraoperative localization of the nidus governs clinical results. However, treatment can be difficult since the lesion is often invisible over the bony surface. Accordingly, establishment of an ideal less invasive surgical strategy for spinal OO remains yet unsettled. We illustrate the efficacy of a computed tomography (CT)-based navigation system in excising OO located adjacent to the facet joint of spine. In our 2 cases, complete and pin-point removal of the nidus located close to the facet joint was successfully achieved, without excessive removal of the bone potentially leading to spinal instability and possible damage of nearby neurovascular structures. We advocate a less invasive approach to spinal OO, particularly in an environment with an available CT-based navigation system.
Osteoblasts ; Osteoma, Osteoid* ; Spine* ; Zygapophyseal Joint*

To evaluate the radiological features of osteoid osteoma around lesser trochante of femur, and to analyze the outcomes of treatment with open surgery.
 Methods: From July 2013 to August 2015, 14 patients (9 males, 5 females) with osteoid osteoma around lesser trochanter were retrospectively reviewed. The ages of patients were 9-44 (average 20) years old. The duration of symptom was 3-36 (average 8) months. After the X-ray plain radiography, CT and MR, all patients underwent open resection. No intense exercise was allowed in the first three months after the operation.
 Results: There were 9 cases of cortical type, and 5 cases of subperiosteal type. The niduses were found by plain radiographs in 9 patients. By CT scan, the niduses were found in all 14 patients. The average pre-operative visual analogue scale (VAS) without NSAIDs was 6.5. One month after the operation, the average VAS was 0 for all patients. The follow up time for all patients was 9-34 (average 20) months. No recurrence, infection, neurovascular injury or fracture was found during the follow up.
 Conclusion: Open resection is a feasible method for osteoid osteoma around lesser trochanter of femur with satisfied outcome and low complication rate.
Adolescent ; Adult ; Bone Neoplasms ; complications ; surgery ; Child ; Cortical Bone ; pathology ; Female ; Femur ; pathology ; surgery ; Humans ; Male ; Osteoma, Osteoid ; complications ; surgery ; Pain ; etiology ; surgery ; Periosteum ; pathology ; Retrospective Studies ; Tomography, X-Ray Computed ; Treatment Outcome