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Ultrasonographic Assessment of the Pronator Quadratus Muscle after Surgical Treatment for Distal Radius Fractures
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Dong Hyuk Choi, Hyun Kyun Chung, Ji Won Lee, Cheol Hwan Kim, Yong Soo Choi
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J Korean Fract Soc 2017;30(2):69-74. Published online April 30, 2017
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DOI: https://doi.org/10.12671/jkfs.2017.30.2.69
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 Abstract
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- PURPOSE
This study was to assess the morphological changes of the pronator quadratus (PQ) muscle using an ultrasonography in the volar locking plate fixation group and in the percutaneous K-wire fixation group for distal radius fracture, and to evaluate the impact on clinical outcomes.
MATERIALS AND METHODS
Fifty-four patients who received surgical treatment for distal radius fracture were enrolled in this study. They were divided into two groups according to treatment modality: Group 1 included 34 patients who underwent internal fixation with volar locking plate and Group 2 included 20 patients with percutaneous K-wire fixation. Thickness of the PQ muscle was measured using an ultrasonography at the final follow-up. We evaluated the outcomes using the Mayo wrist score, wrist range of motion, and grip strength at the final follow-up.
RESULTS
Compared with the uninjured side, thickness of the PQ muscle showed 31.9% of mean atrophy in Group 1 and 11.4% in Group 2. The atrophy of PQ muscle was severe in Group 1 (p=0.01). However, there was no significant difference in the mean Mayo wrist score between the two groups (83.1±10.9 in Group 1 and 80.2±8.9 in Group 2, p=0.28), except a mild limitation of pronation in Group 1.
CONCLUSION
The healed PQ muscle from fracture itself after distal radius fracture revealed a morphological atrophy. Moreover, the volar locking plate resulted in greater atrophy of the PQ muscle, but there was no specific impact on clinical outcomes.
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Treatment of the Femoral Fracture Using Sirus(R) Nail: A Comparison of Complication according to the Entry Potal
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Young Yool Chung, Dong Hyuk Choi, Dae Hyun Yoon, Jung Ho Lee, Ji Hun Park
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J Korean Fract Soc 2015;28(2):103-109. Published online April 30, 2015
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DOI: https://doi.org/10.12671/jkfs.2015.28.2.103
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Abstract
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- PURPOSE
The purpose of this study is to analyze the clinical results of fixation using Sirus(R) nail in patients with femoral subtrochanteric and shaft fracture and the difference in the frequency of complications according to the entry portal.
MATERIALS AND METHODS
From July 2006 to August 2013, at least 1-year clinical follow-up, we retrospectively analyzed 36 cases with femoral subtrochanteric (15 cases) and shaft fracture (21 cases) who underwent surgery using Sirus(R) nail. We reviewed the records of operation time, intra-operative amounts of bleeding and complications. At last follow-up, we reviewed clinical results by Ray-Sanders criteria and analyzed the periods of bone union on the radiograph. We also measured changing of the femoral neck-shaft angle in the subtrochanteric fractures and angulation in the shaft fractures, respectively. Considering anatomical variation of the trochanter and fracture position of subtrochanteric and femoral shaft, entry points were divided into subgroups, and the clinical results were compared.
RESULTS
The mean Ray-Sanders score was 27.4, 27 cases (75.0%) were good or excellent. The mean periods of bone union was 21.1 weeks in 31 cases. The mean neck-shaft angles were 135.7o preoperatively, 130.2o postoperatively. The mean angulation of the femur was 24.4o preoperatively, 2.4o postoperatively in patients of femoral shaft fractures. Despite no statistical significance, greater trochanter tip entry point and lateral entry point had a higher rate of frequency than medial entry point, with respect to the occurrence of iatrogenic fracture and malalignment.
CONCLUSION
Using Sirus(R) nail for femoral subtrochanteric and shaft fractures showed good clinical and radiographic results and a high rate of union. Medial entry point yielded slightly better results in the occurrence of iatrogenic fracture and malalignment, compared to greater trochanter tip entry point and lateral entry point.
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