Clinics in Shoulder and Elbow

Korean Shoulder and Elbow Society (대한견·주관절의학회)
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Short- to mid-term outcomes of radial head replacement for complex radial head fractures

  • Baek, Chung-Sin (Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine) ;
  • Kim, Beom-Soo (Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine) ;
  • Kim, Du-Han (Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine) ;
  • Cho, Chul-Hyun (Department of Orthopedic Surgery, Keimyung University Dongsan Hospital, Keimyung University School of Medicine)
  • Received : 2020.11.10
  • Accepted : 2020.11.24
  • Published : 2020.12.01
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Abstract

Background: The purpose of the current study was to investigate short- to mid-term outcomes and complications following radial head replacement (RHR) for complex radial head fractures and to identify factors associated with clinical outcomes. Methods: Twenty-four patients with complex radial head fractures were treated by RHR. The mean age of the patients was 49.8 years (range, 19-73 years). Clinical and radiographic outcomes were evaluated for a mean follow-up period of 58.9 months (range, 27-163 months) using the visual analog scale (VAS) score for pain, the Mayo elbow performance score (MEPS), the quick disabilities of the arm, shoulder and hand (Quick-DASH) score, and serial plain radiographs. Complications were also evaluated. Results: At the final follow-up, the mean VAS score, MEPS, and Quick-DASH score were 0.6±1.1, 88.7±11.5, and 19.4±7.8, respectively. The mean range of motion was 132.7° of flexion, 4.7° of extension, 76.2° of pronation, and 77.5° of supination. Periprosthetic lucency was observed in six patients (25%). Heterotopic ossification was observed in four patients (16.7%). Arthritic change of the elbow joint developed in seven patients (29.2%). Capitellar wear was found in five patients (20.8%). Arthritic change of the elbow joint was significantly correlated with MEPS (P=0.047). Four cases of complications (16.6%) were observed, including two cases of major complications (one stiffness with heterotopic ossification and progressive ulnar neuropathy and one stiffness) and two cases of minor complications (two transient ulnar neuropathy). Conclusions: RHR for the treatment of complex radial head fractures yielded satisfactory short- to mid-term clinical outcomes, though radiographic complications were relatively high.

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References

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