title: Evaluation of outcome of surgical excision of the nidus of osteoid osteoma of long bone.
abstract: Osteoid osteoma is a benign bone tumour usually found in the lower extremities of children and young adults. This tiny bone tumour causes pain out of all proportion to its size and hinders the daily activities. This Quasi-experimental study conducted in the department of Orthopaedic surgery of BSMMU from January 2008 to December 2009. Twenty one patients were included in the study where purposive sampling technique was used on the basis of inclusion and exclusion criteria and all the ethical conditions were fulfilled. Diagnosis was almost obtained by taking history, clinical examination, and relevant investigations. Clinical variables were age, sex, site, pain, swelling, deformity and outcome variables were painless active life, removal of swelling, prevention of deformity, rate of recurrence. After localization of the tumour with the help of C arm, the nidus was excised in a small block of bone. The outcome is categorized by consensus, as clinically successful, only if the patient was free of pain and was taking no medication. The treatment was considered to have failed if a subsequent procedure had been performed to remove tumour. Among 21 cases, 14(66.7%) were male and 7(33.7%) were female. Maximum number of patients 15(71.4%) was between 10 years to 20 years. Most of the patients (76.2%) affected by osteoid osteoma were young students and most of the patients (95.2%) experienced moderate aching pain, usually aggravating at night which was typically relieved by aspirin or other NSAIDs (71.4%). Lower limbs (76.2%) particularly femur and tibia were commonly affected. Out of 21 patients, 19(90.5%) patients have got immediate pain relief or required no medication. In only 2 patients (9.5%), subsequent procedure has been performed to relief pain. So, successful outcome (in 19 out of 21) was significantly (p<0.001) higher in comparison to failed. Surgical excision of the nidus is a simple and easy procedure and does not require extensive resection of bone. If localization is done properly success rate is high and patients can return to normal daily activities.
authors.affiliation: Dr Md Shahidullah Kaiser, Assistant Professor, Department of Ortho & Traumatology, Mymensingh Medical College (MMC), Mymensingh, Bangladesh.
authors.forename: M S
authors.initials: MS
authors.lastname: Kaiser
authors.forename: W
authors.initials: W
authors.lastname: Rahman
authors.forename: M
authors.initials: M
authors.lastname: Hossain
authors.forename: T H
authors.initials: TH
authors.lastname: Siddiquee
authors.forename: M T
authors.initials: MT
authors.lastname: Hossain
authors.forename: K P
authors.initials: KP
authors.lastname: Das
authors.forename: M S
authors.initials: MS
authors.lastname: Islam
authors.forename: N K
authors.initials: NK
authors.lastname: Datta
mesh_terms: D000293:Adolescent; D001859:Bone Neoplasms / Q000150:complications / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D004210:Dissection / Q000009:adverse effects / Q000379:methods; D005260:Female; D005531:Foot Deformities, Acquired / Q000209:etiology / Q000517:prevention & control; D006801:Humans; D007867:Leg Bones / Q000473:pathology / Q000601:surgery; D008297:Male; D059226:Nociceptive Pain / Q000175:diagnosis / Q000523:psychology; D010017:Osteoma, Osteoid / Q000150:complications / Q000473:pathology / Q000503:physiopathology / Q000601:surgery; D010147:Pain Measurement / Q000379:methods; D010149:Postoperative Pain / Q000175:diagnosis / Q000503:physiopathology; D011788:Quality of Life; D020127:Recovery of Function; D016896:Treatment Outcome; D055815:Young Adult