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Novel Diagnostics in Revision Arthroplasty: Implant Sonication and Multiplex Polymerase Chain Reaction
Published on: December 3, 2017
[Pyoderma gangraenosum after implantation of a shoulder endoprothesis]
M A Domej1, L Pauzenberger1, P R Heuberer1
1II. Orthopädische Abteilung, Herz-Jesu Krankenhaus Wien, Baumgasse 20A, 1030, Wien, Österreich.
Der Orthopade
|October 15, 2017
Summary
Pyoderma gangrenosum, a rare skin condition, can occur after surgery. This case highlights its occurrence following shoulder arthroplasty, challenging typical wound infection diagnoses.
Area of Science:
- Dermatology
- Surgical Complications
- Inflammatory Diseases
Background:
- Pyoderma gangrenosum (PG) is a neutrophilic dermatosis causing painful, necrotic skin ulcers.
- It's linked to systemic diseases or skin injury (pathergy), often mimicking infections post-surgery.
- Commonly reported after breast and visceral surgery, PG poses diagnostic challenges.
Observation:
- This report details a rare case of PG developing after total shoulder arthroplasty.
- The condition presented similarly to a typical postoperative wound infection.
- Standard treatments for infection were ineffective and exacerbated the symptoms.
Findings:
- Postoperative pyoderma gangrenosum (POS-PG) can occur even after orthopedic procedures like shoulder arthroplasty.
- Early recognition is crucial as POS-PG does not respond to antibiotics or debridement.
- Misdiagnosis can lead to delayed appropriate treatment and worsening of the condition.
Implications:
- Clinicians should consider POS-PG in patients with non-healing surgical wounds, especially after orthopedic surgery.
- Differentiating POS-PG from surgical site infections is critical for effective management.
- This case expands the known surgical contexts for POS-PG, emphasizing the need for broader awareness.

