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Rotatory subluxation of the proximal interphalangeal joint: an easily missed diagnosis
  1. Angelos Assiotis,
  2. Christopher Jenkins and
  3. Rouin Amirfeyz
  1. Trauma and Orthopaedics, Bristol Royal Infirmary, Bristol, UK
  1. Correspondence to Mr Angelos Assiotis; aassiotis9{at}


We present a case of volar rotatory subluxation of index finger proximal interphalangeal joint (PIPJ) following a skiing accident. The injury was initially perceived to be a central slip rupture and treatment was directed as such. After the initial delay in the diagnosis, the patient underwent surgery during which his radial collateral ligament was found to be avulsed from the proximal origin, the radial lateral band palmarly subluxed and was interposed in the joint space. This structure was also adhered to the uninjured volar plate.

PIPJ volar rotatory subluxation could be readily missed in the acute setting. Without surgery, the functional outcome could be mediocre and to the patient’s detriment.

  • trauma
  • orthopaedics
  • radiology
  • orthopaedic and trauma surgery

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  • Contributors AA identified the patient initially, operated on the patient, wrote the draft, revised the draft after reviewer comments and approved the final version. CJ revised the draft, operated on the patient, collected data and approved the final version. RA revised the draft, operated on the patient and approved the final version.

  • 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.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

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