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CASE REPORT  
Year : 2012  |  Volume : 46  |  Issue : 1  |  Page : 102-105
Resection of osteoid osteoma of distal tibia using the intraoperative isotopic scan


Department of Orthopedic Surgery, Ibn Sina Teaching Hospital, Rabat, Morocco

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Date of Web Publication10-Jan-2012
 

   Abstract 

Osteoid osteomas are small-sized benign painful bony tumors. The authors report the case of an osteoid osteoma located in the distal third of the tibia, treated by the surgical excision of the nidus using the intraoperatively isotopic marking which allows reducing the incision size and the bony resection.

Keywords: Bone scan, isotopic identification, osteoid osteoma

How to cite this article:
Alami M, Boufettal M, Mahfoud M, El Yaacoubi M. Resection of osteoid osteoma of distal tibia using the intraoperative isotopic scan. Indian J Orthop 2012;46:102-5

How to cite this URL:
Alami M, Boufettal M, Mahfoud M, El Yaacoubi M. Resection of osteoid osteoma of distal tibia using the intraoperative isotopic scan. Indian J Orthop [serial online] 2012 [cited 2019 Oct 20];46:102-5. Available from: http://www.ijoonline.com/text.asp?2012/46/1/102/91644

   Introduction Top


Osteoid osteoma (OO) is a benign tumor (usually 1-2 cm in diameter). [1] It represents 12% of benign bone tumors and 2-3% of primary bone tumors. [2] Osteoid osteoma usually occurs in the long bones of the legs and arms; it is characterized by continuous pain that does not depend on the patient's level of physical activity. This pain is extreme by night and is usually relieved by use of non steroidal anti-inflammatory drugs (NSAIDs) i.e. aspirin. [1] The typical radiological appearance is of a bone forming lesion with a central nidus surrounded by sclerotic bone. [3] However, the diagnosis can be difficult when the nidus is not clearly visible, in case of a deep location or obscure anatomical sites as in a vertebra. [4] Bone scan and computed tomography (CT) scan are the two most important tests for the diagnosis of osteoid osteoma. [5] Indeed, bone scan is very important not only for initial diagnosis, with a sensitivity of about 100%, but also for the treatment by intraoperative detection favoring a precise and complete nidus resection. [6] We report the case of a patient treated by resection of the osteoid osteoma localized in the distal tibia by intraoperative isotope detection.


   Case Report Top


A 29-year-old man presented with a 1-year history of pain in left ankle, with nocturnal exacerbation, which was relieved by the use of acetylsalicylic acid or anti-inflammatory drugs. The clinical examination indicated tenderness of the medial face of the left ankle without swelling. Plain radiographs showed a lytic area, homogeneous, smaller than 1 cm, associated with a perifocal dense bone reaction evoking osteoid osteoma of the distal third of left tibia [Figure 1].
Figure 1: Anteroposterior radiograph of ankle joint showing an osteoid osteoma of the distal third of left tibia (black arrow)

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The CT confirmed a hypodensity associated with peripheral sclerosis, located at the distal third of the left tibia, near to the tibio-talar joint [Figure 2] and [Figure 3].
Figure 2: CT of left ankle showing hypodensity with peripheral sclerosis

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Figure 3: CT of left ankle showing the localization of the osteoid osteoma to tibio-talar joint

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The bone scan showed uptake of radiotracer in the lower third of left leg [Figure 4], confirming the diagnosis of osteoid osteoma. Due to its deep location, near to the tibio-talar joint, and small size of the lesion with important peripheral sclerosis as shown in the scan [Figure 3], it was decided to perform an intraoperative isotope detection and to guide the surgical excision. We used a gamma probe counter, which is a scintillation counter used for isotope detection. It is equipped with a collimator connected to the electronics box by a flexible cable of 3.5 m [Figure 5]. The results are displayed digitally in counts per second (cps). The gamma probe counter has the advantage of being in contact with the uptake seat and being oriented to the higher counting rate. This will be displayed later with sound, demonstrating the localization of osteoid osteoma. Three hours before surgery, the patient received intravenously a marked molecule, dihydroxymethylphosphonate (HMDP) which is a bone matrix tracer. In the operating room, we were able to guide the surgical resection through the radiodetection displayed on the electronic box. The patient was taken in decubitus position under spinal anesthesia; the surgical approach was guided by a percutaneous tracking with the probe. After incision and bone access, the osteoid osteoma location was confirmed by probe counting that indicated a major mounting point located in the posterior and interior distal quarter of left tibia. Recording series, inch by inch in the four cardinal directions, allowed mapping the radiolabeling around the optimal point of fixation [Table 1]. We performed an excision of a bone window of 1 cm / 2 cm around the hyperfixant seat; we recognized the absence of abnormal signal on the residual bone. The postoperative course was uneventful, marked by absence of pain after 24 hours of the surgical procedure. Then, the patient was immobilized by plaster cast for 3 weeks. Pathological examination confirmed the diagnosis of osteoid osteoma with the presence of the nidus. After 24 months, the patient was asymptomatic, and the bone scan performed did not indicate any recurrence of osteoid osteoma.
Figure 4: The bone scan showing uptake of radiotracer in the lower third of left leg

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Figure 5: Gamma probe counter

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Table 1: Intraoperative scintigraphy data

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   Discussion Top


Osteoid osteomas mostly affect children and young adults and are often diagnosed by simple X-ray or CT scan. But sometimes, these lesions are only visible on bone scan. [6] There are three fundamentally different approaches of treatment: conservative medical treatment, conventional surgical treatment and percutaneous destruction of the nidus using several methods like percutaneous sclerosis with ethanol, radiofrequencies, laser photocoagulation or thermocoagulation. [1] The osteoid osteoma may sometimes regress spontaneously; however, this outcome is uncertain and requires several years of observation. [4] However, most patients cannot tolerate the pain, and therefore abuse NSAIDs which entrains gastrointestinal effects. [4] A successful surgical treatment depends on the complete destruction of the nidus and it is not necessary to remove all the sclerotic bone reaction. [7] A very limited resection may leave in place a portion of the nidus and may lead to a recurrence, contrary to a wide excision that may cause a fracture or a growth disorder. [8] The use of intraoperative detection means is sometimes indispensable, especially because it is a small lesion or located on a surface where a minimal surgical procedure is preferred for functional or cosmetic reasons (e.g. osteoid osteoma of cranium). [6] The CT technique for guidance of radiofrequency ablation (RFA) is mostly used nowadays as a percutaneous treatment of osteoid osteoma with good results. [7] Indeed, we observed in a lot of recent studies that rate of recurrence after RFA is less than 10%. [9],[10] But patients are predominantly children or young adults and the radiation dose may be harmful for them. Also, a study published by Cantwell has shown that the use of low radiation in CT technique for guidance of RFA has a low sensitivity to the location of OO, and thus causes incomplete ablation. [11] Furthermore, the nidus should be clearly identified on the CT, the peripheral sclerosis should not be significant to allow the trocar to reach the nidus and the size of the lesion should be small enough to ensure complete removal. In addition, the sensitivity of CT is less than that of bone scan in OO. A study published in French showed that the recurrence rate of the CT guidance for RFA was estimated to be 20%. [3] Other studies have shown some disadvantages of this technique like the lack of histological verification sometimes [1] or even some complications such as thermal burns of the skin and bone infarct. [12] Moreover, the bone scan gives an idea of the lesion activity in contrast to CT. [7] The intraoperative isotopic identification technique is very sensitive, [13],[14],[15],[16],[17],[18],[19],[20],[21] beneficial for the patient, thus sparing a greater resection by the "traditional" methods and facilitating a rapid recovery of activity; also, it is without radiation effects or complications and usually provides a material for histological confirmation. It is very useful where RFA is difficult or dangerous as sometimes in the spine, when the OO is located less than 1 cm away from vital structure [13] or when it is near to vascular or neural structures. This technique was described for the first time in 1980 by Rinsky et al. Later, it was reported in the literature as short series [14],[15],[16],[17],[18],[[19] or sporadic cases. [2],[5],[20],[21],[22],[23],[24] This technique requires an efficient collaboration between isotopologist and orthopedic surgeon. Its benefits are several in this pathology. It can guide the lesion excision by locating a deep lesion even though the bone surface is normal; it detects the nidus even when it is difficult to identify it in case of important peripheral bone reaction. It confirms the radical nature of resection, the only guarantee of healing, while limiting the extent of resection, avoiding a bone graft or the placement of implants in case of location on weight-bearing joint. The gamma probe should be perpendicular to the bone surface during the full procedure for excellent detection of the radioactivity, and therefore an efficient detection of the nidus. In this special case, it was very much possible to use the CT guided RFA, for its many advantages, but we chose the gamma probe technique because it represents an important tool for the surgeon to treat this pathology efficiently, with little morbidity and without complications.

Intraoperative isotopic identification is a highly reliable tool for resection of osteoid osteoma. It allows precise localization, and thus, optimal resection. It is particularly indicated in case of a small size intracortical osteoid osteomas.


   Acknowledgement Top


We thank Professor M.R. Moustaine for his active participation in this work.

 
   References Top

1.Lindner NJ, Ozaki T, Roedl R, Gosheger G, Winkelmann W, Wörtler K. Percutaneous radiofrequency ablation in osteoid osteoma. J Bone Joint Surg Br 2001;83:391-6.  Back to cited text no. 1
    
2.Haddam A, Bsiss A, Echcharraq I, BenRaïs N, Bakriga B, Hamama J, et al. Enhanced treatment of osteoid osteoma by intraoperative isotopic marking: A case report. Médecine nucléaire 2009;33:375-9.  Back to cited text no. 2
    
3.Bérenger N, Mure A, de LabriolleVaylet C, Le Hir P, Kiffet T, Askienazy S. Update on the osteoid osteoma. Médecine nucléaire 1998;22:185-91.  Back to cited text no. 3
    
4.Rosenthal DI, Hornicek FJ, Torriani M, Gebhardt MC, Mankin HJ. Osteoid osteoma: Percutaneous treatment with radiofrequency energy. Radiology 2003;229:171-5.  Back to cited text no. 4
    
5.Haddam A, Lahlou A, Bsiss A, Essahli Y, Boufetal, Lamzaf O, et al. Success of intraoperative scintigraphic detection to complete eradicate of persistent osteoid osteoma. Méd Nucl 2009;33:662-6.  Back to cited text no. 5
    
6.Roth J, Ozisik P, Constantini S. Gamma probe localization of cranial bone lesions: Technical note. Surg Neurol 2004;61:585-7.   Back to cited text no. 6
    
7.Tse WL, Hung LK, Law B, Ho PC. Enhanced localization of osteoid osteoma with radiolabeling and intraoperative gamma counter guidance: A case report. J Hand Surg Am 2003;28:699-703.  Back to cited text no. 7
    
8.Boulaya JM. Osteoid osteoma in children. Journal teaching n° 31 (French Society of Orthopedic and Traumatologic Surgery). L'expansion scientifique ed; 1988. 75-92.   Back to cited text no. 8
    
9.Falappa P, Garganese MC, Crocoli A, Toniolo RM, Lembo A, Marconi F, et al. Particular imaging features and customized thermal ablation treatment for intramedullary osteoid osteoma in pediatric patients. Skeletal Radiol 2011 Mar 15. [Epub ahead of print].  Back to cited text no. 9
    
10.Mastrantuono D, Martorano D, Verna V, Mancini A, Faletti C. Osteoid osteoma: Our experience using radio-frequency (RF) treatment. Radiol Med 2005;109:220-8  Back to cited text no. 10
    
11.Cantwell CP, Kenny P, Eustace S. Low radiation dose CT technique for guidance of radiofrequency ablation of osteoid osteoma. Clin Radiol 2008;63:449-52.  Back to cited text no. 11
    
12.Ruiz Santiago F, Castellano GarcíaMdel M, Guzmán Álvarez L, Martínez Montes JL, Ruiz García M, TristánFernández JM. Percutaneous treatment of bone tumors by radiofrequency thermal ablation. Eur J Radiol 2011;77:156-63.  Back to cited text no. 12
    
13.Rinski LA, Goris M, Bleck EE, Halpem A, Hirshman P. Intraoperative skeletal scintigraphy for localization of osteoidosteoma in the spine. Case report. J Bone Joint Surg Am 1980;62:143-4.  Back to cited text no. 13
    
14.Augereau B, Wioland M, de Labriolle-Vaylet C, Padovani JP, Martin T, Vemeret C, et al. The peroperative isotopic location of osteoid osteomas and other lesions exhibiting increased uptake on scintigraphy. Rev Chir Orthop Reparatrice Appar Mot 1988;74:764-70.  Back to cited text no. 14
    
15.Colton CL, Hardy JG. Evaluation of a sterilizable radiation probe as an aid to surgical treatment of osteoid osteoma. Technical note. J Bone Joint Surg Am 1983;65:1019-22.  Back to cited text no. 15
    
16.Huglo D, Nocaudie M, Camaille B, Hossein C, Rousseau J, Proye C, et al. Détection radio-isotopique peropératoire: Expérience clinique. Med Nucl 1993;17:100-7.  Back to cited text no. 16
    
17.Kirchner B, Hillmann A, Lottes G, Sciuk J, Bartenstein P, Winkelmann W, et al. Intraoperative probe-guided curettage of osteoid osteoma. Eur J Nucl Med 1993;20:609-13.  Back to cited text no. 17
    
18.Klonecke AS, Licho R, Ross Mac Douglall IR. A technique for intraoperative bone scintigraphy. A report of 17 cases. Clin Nucl Med 1991;16:482-6.  Back to cited text no. 18
    
19.Lee DH, Malawer MM. Staging and treatment of primary and persistent (recurrent) osteoid osteoma. Evaluation or intraoperative nuclear scanning, tetracycline fluorescence, and tomography. Clin Orthop Relat Res 1992;281:229-38.  Back to cited text no. 19
    
20.Ellison MJ, Issac L, Smith WI, Donofrio RJ, Turbiner EH. Intraoperativescintigraphic localization of the nidus osteoid osteoma. Clin Nucl Med 1984;9:640-2.  Back to cited text no. 20
    
21.Israeli A, Zwas ST, Horoszowski H, Farine I. Use of radionuclide method in preoperative and intraoperative diagnosis of osteoid osteoma of the spine. Clin Orthop Relat Res 1983;175:194-6.  Back to cited text no. 21
    
22.Ghelman B, Thompson FM, Arnold WD. Intraoperative radioactive localization of an osteoid osteoma. J Bone Joint Surg Am 1981;63:826-7.  Back to cited text no. 22
    
23.Pernot PH, Rigal S, Yedeas M, Gaillard JE, Wioland M, Desgeorges M. Exerèse des ostéomes ostéoïdes rachidiens sous contrôle isotopique. Le Rachis 1991;3:455-9.  Back to cited text no. 23
    
24.O'Brien TM, Muray TE, Malone LA, Dervan P, Walsh M, McManus F, et al. Osteoids osteoma: Excision with scintimetric guidance. Radiology 1984;153:543-4.  Back to cited text no. 24
    

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Correspondence Address:
M Alami
Department of Orthopedic Surgery, Ibn Sina Teaching Hospital, Rabat
Morocco
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0019-5413.91644

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    Figures

  [Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5]
 
 
    Tables

  [Table 1]

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