title: [Therapeutic effect analysis for open resection in osteoid osteoma around lesser trochanter of femur].
abstract: 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.
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Xiaoning
authors.initials: X
authors.lastname: Guo
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Li
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Zhihong
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Peng
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Xiangsheng
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Department of Orthopaedics, Second Xiangya Hospital, Central South University, Changsha 410011, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000150:complications / Q000601:surgery*; D002648:Child; D000071538:Cortical Bone / Q000473:pathology; D005260:Female; D005269:Femur / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D010017:Osteoma, Osteoid / Q000150:complications / Q000601:surgery*; D010146:Pain / Q000209:etiology / Q000601:surgery; D010521:Periosteum / Q000473:pathology; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome