• Journal of Korean Foot and Ankle Society
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• v.3 no.1
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• pp.58-61
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• 1999

Isolated fracture dislocation of the tarsal navicular bone is extremely rare. The mechanism of injury of this fracture dislocation is known as a horizontal or axial load on plantar flexed foot. Closed or open reduction is recommended for displaced navicular fracture. We report one case of isolated fracture dislocation of the tarsal navicular which was treated with closed reduction and percutaneous K-wire fixation.

• Journal of Korean Foot and Ankle Society
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• v.20 no.4
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• pp.170-175
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• 2016

Purpose: The aim of this study is to evaluate the effectiveness of surgical treatment in adolescent patients suffering from navicular stress fracture. Materials and Methods: A total of 11 adolescent patients aged 14 to 19, who underwent an operation for navicular stress fracture between 2005 and 2008 were recruited. Clinical outcomes were evaluated by the American Orthopaedic Foot and Ankle Society (AOFAS) midfoot score and visual analogue scale (VAS) score. Results: The mean VAS score before the operation was 7.7. A score of 2.9 was confirmed at final follow up after the operation. The mean final follow-up period was 22.1 months. There was a statistically significant improvement in the VAS score between before and after the operation (p=0.01), and similarly, the AOFAS score also showed an improvement, from 46.5 to 80.7 (p=0.01). The pain that remained after the operation, according to the VAS score, was severe in three patients (27.3%), tolerable in seven patients (63.6%), and free of pain in one patient (9.1%). Conclusion: In navicular stress fracture in adolescents, careful selection of patients who could benefit from surgical treatment is recommended.

• Journal of Korean Orthopaedic Sports Medicine
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• v.7 no.1
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• pp.55-57
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• 2008

Isolated navicular fracture and dislocation of talonavicular joint is extremely rare. It is recommended closed or open reduction for displaced fracture. We reported one case of isolated tarsal navicular fracture and dislocation of the talonavicular joint, treated with open reduction and internal fixation using K-wires.

• Journal of Korean Foot and Ankle Society
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• v.7 no.2
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• pp.232-237
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• 2003

The purpose of this article is to evaluate and analyze diagnosis and the clinical result of avulsion fracture of navicular. Eight patients operated from Jan. 1991 to June 2002 were evaluated retrospectively. Clinical tolerability, AOFAS score, patient's satisfaction were evaluated. Preoperative AOFAS score is $59.88{\pm}10.90$. Postoperative AOFAS score is $94.75{\pm}6.11$. All patient satisfied result of operation, and 5 patient return to training wihin 3 month. Navicula avulsion fracure is relatively rare. The small dorsal bone triangular fragment is best seen in lateral view radiographs and bone scan and/or computed tomography help corfirm diagnosis. Operative treatment is the method of choice because of shorter recovery time. Simple excision is enough to get a good clincal outcome.

• Journal of the Korean Society of Radiology
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• v.12 no.1
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• pp.39-46
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• 2018

The purpose of this study was to determine suitable angle of Tibia-foot and the X-ray tube for scaphoid in foot X-ray examination. A total of twenty patients(mean age $32.12{\pm}years)$ are participated in this study. In the positions of Foot AP, internal and external oblique, tibia-foot angle was defined as $90^{\circ}$ and $135^{\circ}$, and x-ray tube angle was defined as $0^{\circ}$, $5^{\circ}$, $10^{\circ}$, $15^{\circ}$ and $20^{\circ}$ respectively. The image quality was evaluated with blind test yielding scores ranging from 0 to 5 by the evaluation team consisted of 2 radiogical technologists, 2 radiologists, and 2 orthopedic surgeons. In case of Foot AP position, the degree of overlap between cuneiform and navicular was 3% and the blind test result was 4.89 at tibia-foot angle of $90^{\circ}$ and $15^{\circ}$ X-ray tube angle. When the tibia-foot angle is $135^{\circ}$, the degree of overlap was 5%, also the blind test result was 4.30 at $15^{\circ}$ X-ray tube angle. The degree of overlap and blind test result were 30% and 3.75 respectively at $0^{\circ}$ X-ray tube angle. In case of internal oblique position, at tibia-foot angle of $90^{\circ}$ and $0^{\circ}$ X-ray tube angle, the degree of overlap was 4% and the blind test result was 4.70. The 5% overlapping and highest score as 4.55 were obtained on tibia-foot angle of $135^{\circ}$ and $0^{\circ}$ X-ray tube angle. In case of external oblique position, at tibia-foot angle of $90^{\circ}$ and $15^{\circ}$ X-ray tube angle, the degree of overlap was 4% and the blind test score was 4.85. The 5% overlapping and highest score as 4.75 were obtained on tibia-foot angle of $135^{\circ}$ and $15^{\circ}$ X-ray tube angle. In conclusion, we confirmed suitable angle of tibia-foot and X-ray tube for scaph46oid in foot X-ray examination in this study. These findings will be helpful for us to reading for navicular fracture.