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Solitary Osteochondroma of the Iliac Blade: A Rare Flat Bone Presentation Managed with Complete Surgical Excision

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Case Report | Journal of Clinical Orthopaedics | Vol 10 | Issue 2 | July-December 2025 | page: 129-132 | Aibin B Michael, Arvind B Goregaonkar, Suyog Wagh

DOI: https://doi.org/10.13107/jcorth.2025.v10.i02.802

Open Access License: CC BY-NC 4.0

Copyright Statement: Copyright © 2025; The Author(s).

Submitted Date: 28 Aug 2025, Review Date: 10 Sep 2025, Accepted Date: 18 Sep 2025 & Published Date: 10 Dec 2025

Author: Aibin B Michael [1], Arvind B Goregaonkar [1], Suyog Wagh [1]

[1] Department of Orthopaedics, Lokmanya Tilak Municipal Medical College and General Hospital, Mumbai, Maharashtra, India

Address of Correspondence
Dr. Aibin B Michael,
Department of Orthopaedics, Lokmanya Tilak Municipal Medical College and General Hospital, Sion, Mumbai, Maharashtra, India.
E-mail: aibinmichael357@gmail.com

Abstract

Introduction: Osteochondroma is the most common benign bone tumor, accounting for 20–50% of all benign bone tumors and typically arising from the metaphyses of long bones. Osteochondromas arising from flat bones such as the ilium are exceedingly rare, representing <5% of all osteochondromas. We report a rare case of a large solitary osteochondroma originating from the posterior-inferior part of the left iliac bone in a young female.
Case Report: We report a 21-year-old female with a solitary osteochondroma arising from the posteroinferior part of the left iliac bone. The lesion measured 4.3 × 2.7 × 2.5 cm with a cartilage cap thickness of 2.2 mm. Two magnetic resonance imaging (MRI) scans performed 1 year apart demonstrated an increase in lesion size, while the thickness of the cartilage cap remained unchanged. Surgical subperiosteal excision was performed using a vertical incision. The mass was removed with an osteotome, and bone wax was applied to the raw bone surface for hemostasis. Histopathological examination confirmed a benign osteochondroma without atypical features. At follow-up, the patient reports complete satisfaction with the resolution of deformity and no recurrences.
Discussion: Pelvic osteochondromas are rare and often present late due to their deep location. This case highlights a symptomatic flat-bone osteochondroma presenting with mechanical and cosmetic complaints. MRI findings supported a benign nature. Complete marginal excision, including the cartilage cap, is curative and minimizes recurrence risk.
Conclusion: This case emphasizes the rare location of osteochondroma in the iliac bone and demonstrates that timely surgical management can lead to excellent cosmetic and functional outcomes without recurrence. Early recognition and complete excision are key to successful treatment of flat-bone osteochondromas and prevention of complications.
Keywords: Osteochondroma, Iliac bone, Flat bone tumor, Pelvic osteochondroma, Surgical excision, Cartilage cap.

References

1. Khodnapur G, Kulkarni S, Patil V, Venkat M, Basavaraj MK. Case series – osteochondromas at rare locations. J Orthop Case Rep 2023;13:74-80.
2. Jain MJ, Kapadiya SS, Mutha YM, Mehta VJ, Shah KK, Agrawal AK. Unusually giant solitary osteochondroma of the ilium: A case report with review of literature. J Orthop Case Rep 2023;13:42-8.
3. Saraf S, Reddy SS. A study on osteochondromas from the right and left iliac wing in a tertiary care hospital. MedPulse Int J Orthop 2020;13:57-61.
4. Kim WJ, Kim KJ, Lee SK, Choy WS. Solitary pelvic osteochondroma causing L5 nerve root compression. Orthopedics 2009;32:922.
5. Sun J, Wang ZP, Zhang Q, Zhou ZY, Liu F, Yao C, et al. Giant osteochondroma of ilium: A case report and literature review. Int J Clin Exp Pathol 2021;14:538-44.

How to Cite this Article: Michael AB, Goregaonkar AB, Wagh S. Solitary Osteochondroma of the Iliac Blade: A Rare Flat Bone Presentation Managed with Complete Surgical Excision. Journal of Clinical Orthopaedics. July-December 2025;10(2):129-132.

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Incarcerated pes anserinus around a proximal tibial osteochondroma: a rare extra-articular Cause of locked knee

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Journal of Clinical Orthopaedics | Vol 7 | Issue 2 |  Jul-Dec 2022 | page: 78-80 | Sachin Khemkar, Eknath Pawar, Vipul Shet, Mrinal Kambli, Nihar Modi, Mitali Mokashi

DOI: 10.13107/jcorth.2022.v07i02.539

Author: Sachin Khemkar [1], Eknath Pawar [1], Vipul Shet [1], Mrinal Kambli [1], Nihar Modi [1], Mitali Mokashi [1]

[1] Department of Orthopaedics, Grant Government Medical College and Sir J.J. Group of Hospitals, Mumbai, Maharashtra, India.

Address of Correspondence
Dr. Sachin Khemkar,
Department of Orthopaedics, Grant Government Medical College and Sir J.J. Group of Hospitals, Mumbai, Maharashtra, India.
E-mail: sachinkhemkar@gmail.com

Abstract

Background: Osteochondroma is the most common benign skeletal neoplasm and is found most often in long bones, especially in the distal femur and proximal tibia. They usually present as painless swelling near the joint and can be complicated by mechanical irritation, compression or injury of adjacent structures, fracture, malignant transformation, and post-operative recurrence. Locking of the knee refers to flexion of the knee without complete extension and passive extension is limited resulting in significant pain. Excision is a successful form of the treatment for symptomatic osteochondromas.

Case Report: A case of osteochondroma of the proximal tibia illustrates extra-articular cause of locked knee secondary to the incarceration of pes anserinus tendons by the lesion.

Conclusion: Surgical excision of the bilobed pedunculated posteromedial proximal tibia osteochondroma and restoration of the gracilis and semitendinosis to its normal anatomic position resulted in the complete resolution of symptoms.

Keywords: Osteochondroma, Locked knee, Pes anserinus

References

  1. Oh JY, Tan KK, Wong YS. “Snapping” knee secondary to a tibial osteochondroma. Knee 2008;15:58-60.
  2. Woertler K, Lindner N, Gosheger G, Brinkschmidt C, Heindel W. Osteochondroma: MR imaging of tumor-related complications. Eur Radiol 2000;10:832-40.
  3. Andrews K, Rowland A, Tank J. Knee locked in flexion: Incarcerated semitendinosus tendon around a proximal tibial osteochondroma. J Surg Case Rep 2019;2019:rjy346.
  4. Bansal P, Deehan DJ, Gregory RJ. Diagnosing the acutely locked knee. Injury 2002;33:495-8. .
  5. Florez B, Mönckeberg J, Castillo G, Beguiristain J. Solitary osteochondroma long-term follow-up. J Pediatr Orthop B 2008;17:91-4.
  6. Heck RK Jr., Toy PC. Benign bone tumors and nonneoplastic conditions simulating bone tumors. In: Azar FM, Beaty JH,. editors. Campbell’s Operative Orthopaedics. 14th ed., Vol. 25. Philadelphia, PA: Elsevier; 2021. p. 965-7.
  7. Holt GE. Orthopaedic pathology. In: Miller MD, Thompson SR, editors. Miller’s Review of Orthopaedics. 8th ed., Vol. 9. Philadelphia, PA: Elsevier; 2020. p. 2663-6.
  8. Murphey MD, Choi JJ, Kransdorf MJ, Flemming DJ, Gannon FH. Imaging of osteochondroma: Variants and complications with radiologic-pathologic correlation. Radiographics 2000;20:1407-34.
  9. Cañete M, Fontoira E, Jose BG, Mancheva S. Osteochondroma: Radiological diagnosis, complications and variants. Rev Chil Aust Radiol 2013;19:73-81.
  10. Espejo-Baena A, Coretti SM, Fernandez JM, Garcia-Herrera JM, Del Pino JR. Knee locking due to a single gouty tophus. J Rheumatol 2006;33:193-5.

 

How to Cite this article: Khemkar S, Pawar E, Shet V, Kambli M, Modi N, Mokashi M. Incarcerated Pes Anserinus Around a Proximal Tibial Osteochondroma: A Rare Extra-articular Cause of Locked Knee. Journal of Clinical Orthopaedics Jul-Dec 2022;7(2):78-80.

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