Corrigendum: Extensor Digitorum Brevis Manus / 대한정형외과학회잡지

Author requested to change the name of the last author. The correct name should be Tong joo Lee instead of Tong Ju Lee.

Extensor Digitorum Brevis Manus / 대한정형외과학회잡지

Extensor digitorum brevis manus (EDBM) is a rare variation of the extensor muscle of the dorsum of the hand, which is found incidentally during surgery or magnetic resonance imaging (MRI). EDBM arises from the wrist capsule inferior to the extensor retinaculum, which frequently goes into the ulna side of the basis of the proximal phalanx between the 2nd and 3rd fingers. The aim of this report is evaluate to investigate the symptomatic mass on the dorsum of the hand and wrist using an image study (MRI or ultrasonography) to confirm whether it is a tumor or EDBM. Surgical excision was chosen as a treatment.

Clinical features of atypical femur fracture

OBJECTIVES: We aim to elucidate the clinical outcomes of bisphosphonate-associated atypical femoral fracture and the clinical results depending on the bisphosphonate therapy period. METHODS: Twenty cases involving 15 patients who had been diagnosed with atypical femoral facture between 2004 and 2014 and who had been followed up for at least 12 months were retrospectively analyzed. The control group was composed of 15 typical femoral facture patients. We used plain radiography and physical examinations to determine the period of time required for fracture healing as well as complication occurrence. We investigated the bisphosphonate administration status and duration and the names of its components, bilateral fracture occurrence status, the period of time required for bone union, and reoperation or bone graft status due to nonunion. RESULTS: Revision surgery involving a bone graft was performed due to nonunion in 1 out of 15 cases. Except in one revision case, the duration of the union was 11.9 months on average in 14 cases of atypical fracture patients, and 4.3 months on average in the control group. This difference was statistically significant (p 0.05). CONCLUSIONS: Atypical femoral fractures required more time for bone union than typical ones and prolonged bisphosphonate administration led to a longer period of time required for bone union.

Additional Hinged External Fixation in Complex Elbow Injury

PURPOSE: The purpose of this study was to evaluate the use of hinged external fixation in management of complex elbow injury. MATERIALS AND METHODS: We retrospectively reviewed clinical outcomes in 10 patients with elbow dislocation and associated fractures of both the radial head and the coronoid process from January 2007 to December 2013. All ten patients were treated by hinged external fixation after open reduction and internal fixation. The indication for use of a hinged external fixator was persistent instability after fixation of the fractures. Early mobilization was started at 1 week (6.5 days) after surgery. The external fixator was removed at 6 weeks after surgery. Cassebaum classification and Mayo elbow performance score were used for clinical and functional evaluation. The follow-up period was at least 1 year. RESULTS: At the last follow-up, the average further flexion was 127degrees, and the average flexion contracture was 16degrees. The average pronation was 83degrees and the average supination was 78degrees. By the Cassebaum classification after 1 year follow-up, patients were classified as 4 excellent, 4 good, and 2 poor. According to the Mayo elbow performance score, the average score was 87 points (65-100 points) with 3 excellent, 6 good, and 1 fair. Stability was restored in all patients at the last follow-up. There was no case of nonunion and the average union period was 11.5 weeks. CONCLUSION: This study advocated the additional use of a hinged external fixator in the treatment of complex elbow instability, especially when fixation of fractures and repair of soft tissues were not sufficient. Providing adequate stability and allowing early motion, additional external fixation could improve the functional outcome.