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Resurfacing the distal radioulnar joint with rib perichondrium-a novel method.

ABSTRACT: Background Osteoarthritis in the distal radioulnar joint (DRUJ) is a challenging condition with few really reliable surgical options, particularly in young individuals. Traditional methods as hemiresection, the Darrach procedure, and the Sauvé-Kapandji procedure have less favorable results in the nonrheumatoid patient. The results after implant arthroplasty have improved, but long-term results are yet to be presented before implant arthroplasty can be recommended to young individuals with osteoarthritis in the DRUJ. An alternative method to treat osteoarthritic joints is surface replacement with free costal perichondrium. The technique has been used since the 1970s for other joints. Case Description We adapted the method and used it in two female patients (37 and 38 years old) with nontraumatic osteoarthritis in the DRUJ. Both patients had severe pain and were unable to work. The eroded joint surfaces were resected down to bleeding subchondral cortex. Perichondrium from the seventh rib was osteo-sutured and glued to the ulnar head and the sigmoid notch. Results The maximum follow-up-time in this retrospective review is 25 months. Our short-term results are encouraging in terms of pain relief, motion, grip strength, and return to work. The first patient had an excellent result and was completely normalized. The second patient has improved significantly and experiences only slight pain on heavy lifting and rotational load. Clinical Relevance Free costal perichondrium may be a useful alternative for treating osteoarthritis in the DRUJ, especially in young individuals. The option for a later implant arthroplasty is preserved because most of the anatomy of the joint and all the soft tissue stabilizers are intact. Level of Evidence Therapeutic IV, Case series.

SUBMITTER: Vedung T

PROVIDER: S-EPMC4117689 | biostudies-other | 2014 Aug

REPOSITORIES: biostudies-other

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Project description:Instability of the distal radioulnar joint (DRUJ) is a complication that can occur following distal radius fracture or malunion. We have observed that residual radial translation of the distal radius, relative to the radial shaft, may be a causal factor of DRUJ instability, even once the traditional radiographic parameters (volar tilt, radial inclination, and ulnar variance) have been restored. Residual radial translation of the distal fragment may cause detensioning of the distal interosseous membrane (IOM) and pronator quadratus with poor apposition between the ulnar head and sigmoid notch. This may potentially lead to persistent instability of the ulnar head following internal fixation. Residual radial translation deformity is at risk of being overlooked by the wrist surgeon as there is no existing radiographic parameter that accurately measures this deformity.In this study, 100 normal wrist radiographs were reviewed by three fellowship-trained orthopedic surgeons to develop a simple and reproducible technique to measure radial translation.Utilizing the method described, the point of intersection between the ulnar cortex of the shaft of the radius and the lunate left a mean average of 45.48% (range 25–73.68%) of the lunate remaining on the radial side. In the majority of cases more of the lunate resided ulnar to this line. High levels of agreement with inter-rater (intraclass coefficients = 0.967) and intra-rater (intraclass coefficients = 0.79) reliability was observed.The results of this study can be used to define a normal standard against which residual radial translation can be measured to assess the reduction of distal radius fractures. This new parameter aids in the development of surgical techniques to correct residual radial translation deformity. In addition, awareness and correction of this potential malreduction at the time of surgery may decrease the need for other procedures on the ulnar side of the wrist to improve DRUJ stability, such as ulnar styloid fixation, TFCC repair, or ligamentous grafting [corrected].

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Resurfacing the distal radioulnar joint with rib perichondrium-a novel method.

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