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Osteochondral impression fracture of the patella after sports collision injury
  1. Maud AM Vesseur1,
  2. Johanna CM van Haasteren2,
  3. Freek U Verstraelen1 and
  4. Bert Boonen1
  1. 1 The Department of Orthopaedic and Trauma Surgery, Zuyderland Medical Centre, Heerlen, Limburg, The Netherlands
  2. 2 The Department of Orthopaedic Surgery, Amphia, Breda, Noord-Brabant, The Netherlands
  1. Correspondence to Maud AM Vesseur; maud_vesseur_{at}


This article reports a case of a teenager who suffered a frontal collision sports injury. Computed Tomography (CT) revealed a fracture of the inferior pole of the patella without obvious displacement and retro patellar cortical impression with 5 mm step off. Surgical intervention was performed using β-tricalcium phosphate (β-TCP) and 3.0 cannulated screw fixation.

At 3-month follow-up, the wound showed good healing. No pain was observed. The patient was able to flex up to 100° with full extension. There were no signs of hydrops with full stability of the knee.

Good postoperative results can be obtained in osteochondral impression fractures of the patella using surgical intervention to elevate the osteochondral fragment, graft it with β-TCP and raft it with 3.0 cannulated screws.

  • Orthopaedics
  • Surgery
  • Orthopaedic and trauma surgery
  • Paediatric Surgery

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  • Contributors MAMV: assisting with operation, follow-up and writing manuscript. JCMvH: writing manuscript. FUV: performing operation, follow-up and correction of manuscript. BB: performing operation, follow-up and correction of manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.