scholarly journals Radiofrequency ablation under 3D intraoperative Iso-C C- arm navigation for the treatment of osteoid osteomas

10.29007/mkfn ◽  
2018 ◽  
Author(s):  
Yu Feng ◽  
Niu Xiao-Hui ◽  
Zhang Qing ◽  
Zhao Hai-Tao ◽  
Xu Li-Hui ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Three Dimensional ◽  
Pathological Examination ◽  
X Rays ◽  
Ct Guided ◽  
Biopsy Specimens ◽  
Effective Option ◽  
Vas Scores ◽  
The Mean

Objective: To evaluate the efficacy of intraoperative three-dimensional (3D) Iso-C C-arm- navigated percutaneous radiofrequency ablation (RFA) of osteoid osteomas.Methods: 35 patients (20 males and 15 females) with osteoid osteomas underwent treatment with intraoperative 3D Iso-C C-arm navigation-guided RFA. The tumour was first biopsied for pathological examination, the core needle was removed and the RFA needle was inserted into the nidus. Post-operative X-rays and CT scans were performed to evaluate the degree of ablation and to assess for recurrence at 3-month follow-up. Patients also completed a visual analogue scale (VAS) both pre-operatively and 3 days post-operatively to subjectively assess pain.Results: Pathological diagnosis confirmed osteoid osteoma in 19 cases. The other 16 cases were not pathologicallydiagnosed owing to inadequate biopsy specimens. In all cases, localized pain was immediately relieved following RFA. Patients reported significantly decreased pain, with mean pre- operative VAS scores of 3.4 reducing to 0.80 at 3 days post-operatively and further to 0.06 at 3-month follow-up (p ,0.05). The mean follow-up time was 15.5 months (range: 3–38 months).Conclusion: 3D Iso-C C-arm navigation-guided RFA is a safe and effective option for the treatment of osteoid osteomas and may be considered in place of intra-operative CT-guided and open resection.Advances in knowledge: C-arm image-guided percutaneous RFA mitigates the need for pre- operative CT as well as intraoperative scintigraphy, provides real-time imaging of the anatomy, facilitates accurate resection of the tumour and enables immediate confirmation of excision.

Effectiveness of Ultrasound-Guided Radiofrequency Ablation in the Treatment of 36 Renal Cell Carcinoma Tumours Compared with Published Results of Using Computed Tomography Guidance

2012 ◽  
Vol 63 (3_suppl) ◽  
pp. S23-S32 ◽  
Author(s):  
Kellie Davis ◽  
Ania Kielar ◽  
Katayoun Jafari
Keyword(s):  
Computed Tomography ◽  
Radiofrequency Ablation ◽  
Residual Disease ◽  
Tumour Size ◽  
Complication Rates ◽  
Ct Guided ◽  
Renal Lesions ◽  
Contrast Enhanced Ct ◽  
The Mean

This study aimed to analyse the outcomes of ultrasound (US) guided radiofrequency ablation (RFA) in patients with renal lesions and to compare our outcomes with published results of ablations carried out when using computed tomography (CT) guidance. This retrospective study evaluated RFA of 36 renal tumours in 32 patients (M = 21, F = 11). The mean patient age was 70 years (range, 39–89 years). Ablations were performed by using either multi-tined applicators or cooled and/or cluster applicators under US guidance. Applicator size varied from 2–5 cm, depending on the size of the index tumour. Conscious sedation was administered by an anesthetist. Follow-up imaging by using contrast-enhanced CT was performed 1, 3, 6, and 12 months after RFA, and yearly thereafter. The mean tumour follow-up time was 12 months (range, 1–35 months). The mean tumour size was 2.7 cm (range, 1–5 cm). Primary effectiveness was achieved in 31 cases (86.1%), with patients in 5 cases (11.1%) demonstrating residual disease. Three patients had repeated sessions, which were technically successful. The remaining 2 patients were not re-treated because of patient comorbidities. As a result, secondary effectiveness was achieved in 34 patients (94.4%). In 1 patient, a new lesion developed in the same kidney but remote from the 2 prior areas of treatment. Hydrodissection was performed in 3 patients (8.3%), manipulation or electrode repositioning in 11 patients (30.6%), and ureteric cooling in 1 patient (2.8%). Minor and major complications occurred in 3 (8.3%) and 3 (8.3%) patients, respectively. Correlation coefficients were calculated for distance from skin to tumour and risk of complication as well as compared with primary and secondary effectiveness. This study demonstrates that US-guided RFA is an effective treatment for renal lesions, with rates of effectiveness and complication rates comparable with published CT-guided RFA results.

scholarly journals A Modified Translaminar Osseous Channel-Assisted Percutaneous Endoscopic Lumbar Discectomy for Highly Migrated and Sequestrated Disc Herniations of the Upper Lumbar: Clinical Outcomes, Surgical Indications, and Technical Considerations

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Zhijun Xin ◽  
Wenbo Liao ◽  
Jun Ao ◽  
Jianpu Qin ◽  
Fang Chen ◽  
...  
Keyword(s):  
Leg Pain ◽  
Surgical Indications ◽  
Radiologic Findings ◽  
Effective Option ◽  
Disc Herniations ◽  
Vas Scores ◽  
The Mean ◽  
Endoscopic Lumbar Discectomy ◽  
Technical Considerations

Objective is to describe a safe and effective percutaneous endoscopic approach for removal of highly migrated and sequestrated disc herniations of the upper lumbar spine and to report the results, surgical indications, and technical considerations of the new technique. Eleven patients who had highly migrated and sequestrated disc herniations in the upper lumbar were included in this study. A retrospective study was performed for all patients after translaminar osseous channel-assisted PELD was performed. Radiologic findings were investigated, and pre-and postoperative visual analog scale (VAS) assessments for back and leg pain and Oswestry disability index (ODI) evaluations were performed. Surgical outcomes were evaluated under modified MacNab criteria. All of the patients were followed for more than 1 year. The preoperative and postoperative radiologic findings revealed that the decompression of the herniated nucleus pulposus (HNP) was complete. After surgery, the mean VAS scores for back and leg pain immediately improved from 8.64 (range, 7–10) and 8.00 (range, 6–10) to 2.91 (range, 2–4) and 2.27 (range, 1–3), respectively. The mean preoperative ODI was 65.58 (range, 52.2–86), which decreased to 7.51 (range, 1.8–18) at the 12-month postoperative follow-up. The MacNab scores at the final follow-up included nine excellent, one good, and one fair. The modified translaminar osseous channel-assisted PELD could be a safe and effective option for the treatment of highly migrated and sequestrated disc herniations of the upper lumbar.

scholarly journals The follow-up of the robotic-assisted Soave procedure for Hirschsprung’s disease in children

2021 ◽  
Author(s):  
Tran Anh Quynh ◽  
Pham Duy Hien ◽  
Le Quang Du ◽  
Le Hoang Long ◽  
Nguyen Thi Ngoc Tran ◽  
...  
Keyword(s):  
Hirschsprung's Disease ◽  
Hirschsprung’S Disease ◽  
Pediatric Patients ◽  
Three Dimensional ◽  
Dentate Line ◽  
Robotic Arms ◽  
Robotic Assisted ◽  
The Mean ◽  
Pull Through

AbstractRobotic surgery offers three-dimensional visualization and precision of movement that could be of great value to gastrointestinal surgeons. There were many previous reports on robotic technology in performing Soave colonic resection and pull-through for Hirschsprung’s disease in children. This study described the follow-up of the Robotic-assisted Soave procedure for Hirschsprung’s disease in children. Robotic-assisted endorectal pull-through was performed using three robotic arms and an additional 5-mm trocar. The ganglionic and aganglionic segments were initially identified by seromuscular biopsies. The rest of the procedure was carried out according to the Soave procedure. We left a short rectal seromuscular sleeve of 1.5–2 cm above the dentate line. From December 2014 to December 2017, 55 pediatric patients were operated on. Age ranged from 6 months to 10 years old (median = 24.5 months). The aganglionic segment was located in the rectum (n = 38), the sigmoid colon (n = 13), and the left colon (n = 4). The mean total operative time was 93.2 ± 35 min (ranging from 80 to 180 min). Minimal blood was lost during the surgery. During the follow-up period, 41 patients (74.6%) had 1–2 defecations per day, 12 patients (21.8%) had 3–4 defecations per day, and 2 patients (3.6%) had more than 4 defecations per day. Fecal incontinence, enterocolitis, and mild soiling occurred in three (5.4%), four (7.3%), and two pediatric patients, respectively. Robotic-assisted Soave procedure for Hirschsprung’s disease in children is a safe and effective technique. However, a skilled robotic surgical team and procedural modifications are needed.

scholarly journals Efficacy and safety of radiofrequency ablation for benign thyroid nodules in patients with previous thyroid lobectomy

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Lin Yan ◽  
Mingbo Zhang ◽  
Fang Xie ◽  
Jun Ma ◽  
Jing Xiao ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Symptom Score ◽  
Thyroid Function ◽  
Thyroid Nodules ◽  
Efficacy And Safety ◽  
Thyroid Lobectomy ◽  
The Mean ◽  
Benign Thyroid Nodules ◽  
Benign Thyroid

Abstract Background Radiofrequency ablation (RFA) is recommended for the treatment of benign thyroid nodules. However, data on the clinical role of RFA for benign thyroid nodules in patients with history of thyroid lobectomy are insufficient. The purpose of this study was to evaluate the efficacy and safety of radiofrequency ablation (RFA) for benign thyroid nodules in patients who had previously undergoing thyroid lobectomy. Methods From May 2015 to October 2018, a total of 20 patients (19 females, 1 male, mean age 49.50 ± 14.26 years, range 22–74 years) with 20 benign thyroid nodules (mean volume 15.04 ± 21.17 ml, range 0.40–69.67 ml) who had undergone previous thyroid lobectomy were included in this retrospective study. Patients were followed up at 3, 6, 12 months after RFA and every 12 months thereafter by ultrasound, clinical evaluation and thyroid function. Volume, volume reduction rate (VRR), symptom score and cosmetic score were evaluated. Results During the mean follow-up time of 21.24 ± 16.41 months, the mean nodule volume decreased significantly from 15.04 ± 21.17 ml to 1.29 ± 1.17 ml (P = 0.018) with a mean VRR of 85.41 ± 12.17%. Therapeutic success was achieved in a single session for all thyroid nodules. The symptom score (P = 0.001) and cosmetic score (P = 0.001) were both significantly reduced at the last follow-up. The levels of free triiodothyronine (fT3), free thyroxine (fT4) and thyroid stimulating hormone were not significantly different at the last follow-up from those prior to treatment (all P > 0.05). No life-threatening complications or sequelae occurred after RFA. Conclusions As a minimally invasive modality, RFA was a safe, effective, and thyroid function-preserving option for patients with symptomatic benign thyroid nodules after a previous lobectomy.

scholarly journals Effect of preservation of the C-6 spinous process and its paraspinal muscular attachment on the prevention of postoperative axial neck pain in C3–6 laminoplasty

2015 ◽  
Vol 22 (3) ◽  
pp. 221-229 ◽  
Author(s):  
Eiji Mori ◽  
Takayoshi Ueta ◽  
Takeshi Maeda ◽  
Itaru Yugué ◽  
Osamu Kawano ◽  
...  
Keyword(s):  
Neck Pain ◽  
Spinous Process ◽  
Posterior Longitudinal Ligament ◽  
Paraspinal Muscle ◽  
Vas Scores ◽  
The Mean ◽  
Axial Neck Pain ◽  
Process Length ◽  
Preservation Technique

OBJECT Axial neck pain after C3–6 laminoplasty has been reported to be significantly lesser than that after C3–7 laminoplasty because of the preservation of the C-7 spinous process and the attachment of nuchal muscles such as the trapezius and rhomboideus minor, which are connected to the scapula. The C-6 spinous process is the second longest spinous process after that of C-7, and it serves as an attachment point for these muscles. The effect of preserving the C-6 spinous process and its muscular attachment, in addition to preservation of the C-7 spinous process, on the prevention of axial neck pain is not well understood. The purpose of the current study was to clarify whether preservation of the paraspinal muscles of the C-6 spinous process reduces postoperative axial neck pain compared to that after using nonpreservation techniques. METHODS The authors studied 60 patients who underwent C3–6 double-door laminoplasty for the treatment of cervical spondylotic myelopathy or cervical ossification of the posterior longitudinal ligament; the minimum follow-up period was 1 year. Twenty-five patients underwent a C-6 paraspinal muscle preservation technique, and 35 underwent a C-6 nonpreservation technique. A visual analog scale (VAS) and VAS grading (Grades I–IV) were used to assess axial neck pain 1–3 months after surgery and at the final follow-up examination. Axial neck pain was classified as being 1 of 5 types, and its location was divided into 5 areas. The potential correlation between the C-6/C-7 spinous process length ratio and axial neck pain was examined. RESULTS The mean VAS scores (± SD) for axial neck pain were comparable between the C6-preservation group and the C6-nonpreservation group in both the early and late postoperative stages (4.1 ± 3.1 vs 4.0 ± 3.2 and 3.8 ± 2.9 vs 3.6 ± 3.0, respectively). The distribution of VAS grades was comparable in the 2 groups in both postoperative stages. Stiffness was the most prevalent complaint in both groups (64.0% and 54.5%, respectively), and the suprascapular region was the most common site in both groups (60.0% and 57.1%, respectively). The types and locations of axial neck pain were also similar between the groups. The C-6/C-7 spinous process length ratios were similar in the groups, and they did not correlate with axial neck pain. The reductions of range of motion and changes in sagittal alignment after surgery were also similar. CONCLUSIONS The C-6 paraspinal muscle preservation technique was not superior to the C6-nonpreservation technique for preventing postoperative axial neck pain.

scholarly journals Idiopathic retroperitoneal fibrosis: A report on 15 patients

2015 ◽  
Vol 72 (10) ◽  
pp. 928-931 ◽  
Author(s):  
Jovan Hadzi-Djokic ◽  
Tomislav Pejcic ◽  
Dragoslav Basic ◽  
Ivana Vukomanovic ◽  
Zoran Dzamic ◽  
...  
Keyword(s):  
Surgical Procedures ◽  
Retroperitoneal Fibrosis ◽  
Early Recognition ◽  
Signs And Symptoms ◽  
Omental Flap ◽  
Definitive Treatment ◽  
Pathological Examination ◽  
Idiopathic Retroperitoneal Fibrosis ◽  
The Mean

Background/Aim. Retroperitoneal fibrosis (RPF) represents a chronic pathological process characterized by fibrosis which entraps and compresses the ureters and the great blood vessels in the retroperitoneal space. A specific form of RPF is idiopathic RPF, an uncommon collagen vascular disease of unclear etiology. The series of 15 patients which underwent open surgical repair due to idiopathic RPF is presented herein. Methods. From 1989 to 2012, 11 male and 4 female patients underwent surgery due to primary RPF. The ureters were entrapped unilaterally (7 patients), or bilaterally (8 patients). Major symptoms included low back pain due to hydronephrosis (9 patients), uremia (4 patients), and urinary tract infection (2 patients). The diagnosis was based on intravenous urography (IVU), retrograde ureteropyelography and computed tomography (CT). Results. Surgical procedures included intraperitoneal ureteral displacement (8 patients) and ureteral wrapping with omental flap (6 patients). One patient underwent bilateral ureteral stenotic segments resection and oblique ureterography, followed by wrapping with omental flap. Pathological examination confirmed primary RPF in all patients. The mean operative time was 3.5 h (range 2.5-4.5 h). The average intrahospital stay was 21 days (range 16-26 days). The mean follow up was 32 months (6-46 months). During the follow up, 12 patients had improvement on IVU. Conclusion. Early recognition of signs and symptoms of RPF is of the utmost importance for the outcome. Surgical procedures, including ureteral wrapping with omental flap, or intraperitoneal ureteral displacement, usually represent definitive treatment.

scholarly journals Motion-Preserving Navigated Primary Internal Fixation of Unstable C1 Fractures

2020 ◽  
Vol 14 (4) ◽  
pp. 466-474
Author(s):  
Shanmuganathan Rajasekaran ◽  
Dilip Chand Raja Soundararajan ◽  
Ajoy Prasad Shetty ◽  
Rishi Mugesh Kanna
Keyword(s):  
Neck Disability Index ◽  
Optimal Placement ◽  
Range Of Movement ◽  
Ct Guided ◽  
Duration Of Surgery ◽  
The Mean ◽  
The Right ◽  
Neck Disability ◽  
Displaced Fracture

Study Design: Prospective observational study.Purpose: To assess the safety, efficacy, and benefits of computed tomography (CT)-guided C1 fracture fixation.Overview of Literature: The surgical management of unstable C1 injuries by occipitocervical and atlantoaxial (AA) fusion compromises motion and function. Monosegmental C1 osteosynthesis negates these drawbacks and provides excellent functional outcomes.Methods: The patients were positioned in a prone position, and cranial traction was applied using Mayfield tongs to restore the C0–C2 height and obtain a reduction in the displaced fracture fragments. An intraoperative, CT-based navigation system was used to enable the optimal placement of C1 screws. A transverse rod was then placed connecting the two screws, and controlled compression was applied across the fixation. The patients were prospectively evaluated in terms of their clinical, functional, and radiological outcomes, with a minimal follow-up of 2 years.Results: A total of 10 screws were placed in five patients, with a mean follow-up of 40.8 months. The mean duration of surgery was 77±13.96 minutes, and the average blood loss was 84.4±8.04 mL. The mean combined lateral mass dislocation at presentation was 14.6±1.34 mm and following surgery, it was 5.2±1.64 mm, with a correction of 9.4±2.3 mm (<i>p</i> <0.001). The follow-up CT showed excellent placement of screws and sound healing. There were no complications and instances of AA instability. The clinical range of movement at 2 years in degrees was as follows: rotation to the right (73.6°±9.09°), rotation to the left (71.6°±5.59°), flexion (35.4°±4.5°), extension (43.8°±8.19°), and lateral bending on the right (28.4°±10.45°) and left (24.8°±11.77°). Significant improvement was observed in the functional Neck Disability Index from 78±4.4 to 1.6±1.6. All patients returned to their occupation within 3 months.Conclusions: Successful C1 reduction and fixation allows a motion-preserving option in unstable atlas fractures. CT navigation permits accurate and adequate monosegmental fixation with excellent clinical and radiological outcomes, and all patients in this study returned to their preoperative functional status.

scholarly journals Preliminary Results in Anatomic All-inside Anterior Cruciate Ligament Reconstruction

2016 ◽  
Vol 1 (s2) ◽  
pp. 23-26
Author(s):  
Octav Russu ◽  
Tiberiu Bățagă ◽  
Andrei-Marian Feier ◽  
Radu Prejbeanu ◽  
Radu Fleaca ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Knee Laxity ◽  
Clinical Results ◽  
Lysholm Score ◽  
X Rays ◽  
The Mean ◽  
Anterior Cruciate

Abstract Introduction: Anterior cruciate ligament (ACL) rupture is one of the most common lesions in knee traumatology; therefore the number of ACL reconstructions is increasing worldwide. Usually, an anteromedial (AM) accessory portal is required in anatomical positioning of the femoral tunnel, which is not absolutely necessary in this technique. Aim: Assessment of all-inside ACL reconstruction preliminary clinical results with adjustable loops and buttons on both femoral and tibial surfaces. Method: Our prospective study included 28 subjects (19 male, 9 female) with chronic ACL ruptures. The mean age of the study population was 27.72 ± 8.23 years. In all cases ACL reconstruction was carried out with the use of quadrupled semitendinosus auto-grafts with adjustable loops and buttons on the femoral and tibial surfaces and anatomic placement of both tunnels, using an outside-in technique, with flipcutters (Arthrex®). Clinical and radiological evaluations were carried out before surgery and at 3 and 6 months postoperatively, with the Lysholm scoring system, the Tegner activity scale and anterior-posterior and latero-lateral X-rays. Anterior knee laxity was measured in 25° of flexion using a portable arthrometer (RolimeterTM, Aircast®) and maximum manual force. Results: During the final follow-up, the Lysholm score was good and excellent in 27 cases, with a mean Lysholm score of 95.55 ± 4.63; all results were classified as good. The mean preoperative Tegner activity score was 3.46 ± 1.71 (range: 1-7), and the post-operative mean score was 5.75 ± 2.24 (range: 2-10). We found no graft ruptures. Preoperative knee laxity measurements showed a mean displacement of 11.5 ± 3.1 mm and side-to-side differences of 5.6 ± 3.5 mm, while the postoperative measurements at the last follow-up were 6.3 ± 1.54 mm and 2.65 ± 1.86 mm, respectively. Conclusion: Short-term clinical outcomes of all-inside ACL restoration with anatomic placement femoral and tibial tunnels seem to recommend this surgical option, with good subjective and objective results. Additional research will have to prove the long-term success.

Feasibility and safety of percutaneous computed tomography guided radiofrequency ablation of lymph nodes in oligometastatic patients: a single center’s experience

2021 ◽  
Vol 94 (1121) ◽  
pp. 20200445
Author(s):  
Dimitrios Filippiadis ◽  
George Charalampopoulos ◽  
Athanasios Tsochatzis ◽  
Lazaros Reppas ◽  
Argyro Mazioti ◽  
...  
Keyword(s):  
Radiofrequency Ablation ◽  
Lymph Nodes ◽  
Clinical Success ◽  
Complete Response ◽  
Tumor Control ◽  
Complication Rates ◽  
Ct Guided ◽  
Female Ratio ◽  
Contrast Enhanced Ct ◽  
The Mean

Objectives: To retrospectively evaluate feasibility and safety of CT-guided percutaneous radiofrequency ablation (RFA) of metastatic lymph nodes (LN) in terms of achieving local tumor control. Methods: Institutional database research identified 16 patients with 24 metastatic LNs who underwent percutaneous CT-guided radiofrequency ablation. Mean patient age was 66.6 ± 15.70 years (range 40–87) and male/female ratio was 8/8. Contrast-enhanced CT or MRI was used for post-ablation follow-up. Patient and tumor characteristics and RFA technique were evaluated. Technical and clinical success on per tumor and per patient basis as well as complication rates were recorded. Results: Mean size of the treated nodes was 1.78 ± 0.83 cm. The mean number of tumors per patient was 1.5 ± 0.63. The mean procedure time was 56.29 ± 24.27 min including local anesthesia, electrode(s) placement, ablation and post-procedural CT evaluation. Median length of hospital stay was 1.13 ± 0.34 days. On a per lesion basis, the overall complete response post-ablation according to the mRECIST criteria applied was 75% (18/24) of evaluable tumors. Repeat treatment of an index tumor was performed on two patients (three lesions) with complete response achieved in 87.5% (21/24) of evaluable tumors following a second RFA. On a per patient basis, disease progression was noted in 10/16 patients at a mean of 13.9 ± 6.03 months post the ablation procedure. Conclusion: CT-guided percutaneous RFA for oligometastatic LNs is a safe and feasible therapy. Advances in knowledge: With this percutaneous therapeutic option, metastatic LNs can be eradicated with a very low complication rate.

Is precise open excision a more suitable surgical method for osteoid osteoma?

2020 ◽  
Author(s):  
Yuhao Yuan ◽  
Feng Long ◽  
Qing Liu ◽  
Ziyi Wu ◽  
Hongbo He ◽  
...  
Keyword(s):  
Osteoid Osteoma ◽  
High Speed ◽  
Pathological Examination ◽  
Vas Score ◽  
Primary Surgery ◽  
Second Surgery ◽  
The Mean ◽  
High Speed Burr ◽  
Open Excision

Abstract Background The aim of this retrospective study was to evaluate the efficacy of precise open excision surgery to treat osteoid osteoma with C-arm assisted precise localization during the operation. Methods From June 2010 to June 2017, patients with osteoid osteoma of the extremities who had undergone treatment by high speed burr grinding, full scratching with curette, and C-arm assisted lesion localization during the operation were analyzed retrospectively. The preoperative and postoperative pain was assessed by the visual analogue scale (VAS) scoring. The patients were followed up regularly, and the advantages, effects, and complications of the therapeutic technique were analyzed. Results The study consisted of 94 patients (59 males, 35 females; mean age, 17.6 ± 8.5 years) and they were followed up for a mean of 38.9 months (range, 24–72 months). All patients were diagnosed with osteoid osteoma by postoperative pathological examination. Follow-up consisted of imaging reexamination and clinical evaluation. If the patients did not take non-steroidal anti-inflammatory drugs (NSAIDs) before the operation, the mean pre-operative VAS score was 6.7, and the mean VAS score of all patients was 0 one month after operation. The mean time for all patients to resume normal daily activities was 14.3 days (range, 10–21 days). There was no recurrence of pain, infection, vascular or nerve injury, and fracture complications during the follow-up. In only one case of distal femur osteoid osteoma (OO), review X-ray found a suspected recurrence 50 months after the primary surgery and subsequently, the patient underwent a second surgery. Till date, the patient has reported no discomfort following the second surgery. Conclusions For treatment of osteoid osteoma, open incision and minimal resection with C-arm assisted tumor localization is still a suitable method, especially for osteoid osteoma located on the surface of the cortical bone.

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