ObjectiveChondroblastoma is a benign aggressive tumor which needs surgical treatment and has a recurrence rate up to 35%. Extended (aggressive) curettage is the mainstay of treatment and local adjuvants have been reported to decrease the recurrence rate.MethodsThe recurrence rates and the functional results of 14 patients who were treated in our institution and 2 other patients who were treated elsewhere between the years 2004–2016 were evaluated. Seventeen cases (13 male, 3 female; mean age: 17.1 [range: 13 to 32] years) who had been diagnosed, treated and followed up in our hospital between 2004 and 2016 were evaluated in terms of recurrence rates and functional outcomes. The average follow-up period was 41.6 (range: 12 to 132) months.ResultsFive cases of recurrence were observed. Two cases had undergone their primary treatment in another institution. Seven cases were performed curettage alone whereas nine others were administered adjuvant treatments. One of the five recurrence patients was advised to undergo disarticulation. Another was treated with curettage and grafting and the remaining three patients with curettage and cementing. No recurrence was observed in their follow-up period. Their mean MSTS score was 27.3 (range: 4 to 30) over a maximum of 30 points and their functional results were good.ConclusionChondroblastoma is a tumor with high recurrence rates in the post-treatment period. However, good functional outcomes can be achieved with early diagnosis and appropriate treatment even after recurrence.Level of evidence: Level IV, therapeutic study.

The plantar fascia thickness of adults without heel pain was measured to be less than 4 mm in most participants (~92%). There was no statistically significant difference between the thickness of the right and left foot plantar fascia.

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Aneurysmal bone cyst originating from the surface of the bone, either within the cortex or subperiosteally, is an uncommon anatomic subtype. This article reports the clinical and radiologic evaluations and treatment outcomes of 10 patients with surface aneurysmal bone cysts that were surgically treated between 1982 and 2014. Mean age at the time of surgery was 22.4 years (range, 11-44 years). According to Capanna's radiographic evaluation criteria, 6 of the lesions were classified as type V and 4 were classified as type IV. Radiographically, periosteal shell formation was observed to be complete in 4 patients, partial in 3, and absent in 3, and 6 patients had Codman's angle or buttress formation. In 1 patient, computed tomography scan showed birdcage-like ossification attached to the surface of bone. Magnetic resonance imaging showed fluid-fluid levels in 5 patients. All of the patients had standard curettage and high-speed burr application as an adjuvant. No patient had local recurrence at the end of the follow-up period of 98.4 months (range, 13-288 months). These findings show the importance of careful radiologic evaluation and biopsy to better plan a treatment strategy when surface aneurysmal bone cyst is included in the differential diagnosis. The finding of fluid-fluid levels on magnetic resonance imaging or computed tomography is not pathognomonic for primary aneurysmal bone cyst; however, the absence of this finding does not rule out the diagnosis. The rate of local recurrence after curettage plus high-speed burr is reasonably low, and other adjuvant procedures should be used whenever needed. [Orthopedics. 2016; 39(5):e897-e903.].

ObjectiveThe aim of this study was to discuss the diagnosis and surgical management and their results according to stage of primary bone tumors at ulna and to share our experience on this exceptional location for bone tumors.MethodsWe have retrospectively reviewed our clinics database and identified 23 cases (14 males and 9 females, mean age was 28.9 (range 4–77)) with primary bone tumors and tumor like lesion involvement of ulna. The patients were evaluated according to complaints, type and grade of tumor, treatment, recurrence and functional status.ResultsThe most common first referral complaint was constrictive pain in 52.1% of the cases, benign tumors and tumor like lesions of the bone constituted 73.9% whereas malignant bone tumors were 26.1%, 39.1% of the lesions were located in distal end of ulna and the mean follow up was 33.8 months (range 8–172 months). Local recurrence has unexpectedly occurred in 3 benign lesions (13.1%).ConclusionBenign bone lesions tend to involve distal and proximal ends, malign bone lesions involve diaphysis mostly. Both benign and malignant diaphyseal lesions of the ulna have better postoperative results regarding the lesions at both ends of ulna. One should also take care of recurrences even after a decade from the primary surgery.Level of evidenceLevel IV, Therapeutic study

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