Junichiro Shibuya

Junichiro Shibuya

orcid

Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Y[YUYA [Dr]TAKAKUBO
YUYA [Dr]TAKAKUBO
YWYoshihiro Wanezaki
Yoshihiro Wanezaki
HOHiroharu Oki
Hiroharu Oki
YNYasushi Naganuma
Yasushi Naganuma
JSJunichiro Shibuya
Junichiro Shibuya
MTMichiaki Takagi
Michiaki Takagi
Background: Joint-preserving surgery for the forefoot has been increasingly performed for rheumatoid arthritis (RA). We compared joint-preserving surgeries with resection arthroplasty for RA in the forefoot. Methods: Forefoot surgeries were performed on 62 toes in 42 patients with RA (men: 2; women: 40) between 2002 and 2018. Three groups were compared: PP—31 toes treated with joint-preserving surgery involving the modified Mann method for the big toe and offset osteotomy for lesser toes, PR—15 toes treated with joint-preserving surgery for the big toe and resection arthroplasty for lesser toes, and RR—16 toes treated with resection arthroplasty for all the toes. Results: The PP group had significantly higher mean scores on a scale for RA in the foot and ankle at the latest follow-up than the RR group (86 vs. 75 points; p < 0.05). Hallux valgus (angle > 20°) of the big toe at the latest follow-up recurred in 10 (32%), 9 (60%), and 16 (100%) patients in the PP, PR, and RR groups, respectively. A revision surgery was performed in one patient each in the PP and PR groups. Conclusions: Joint-preserving surgery is superior to resection arthroplasty in preventing function loss and the recurrence of hallux valgus.

12 September 2022 in Interactive CardioVascular and Thoracic Surgery
Verified
Journal Article
Open access
PDF file
HSHiroshi Satake
Hiroshi Satake
RHRyusuke Honma
Ryusuke Honma
TNToshiya Nito
Toshiya Nito
YNYasushi Naganuma
Yasushi Naganuma
JSJunichiro Shibuya
Junichiro Shibuya
MTMichiaki Takagi
Michiaki Takagi
OBJECTIVES: We have hypothesized that an endoscopically assisted transaxillary approach in the zero position would be able to improve visualization and allow safe surgery for thoracic outlet syndrome. METHODS: We performed surgery only for patients with certain objective findings, including blood flow disruption, low blood flow and accelerated blood flow in the subclavian artery demonstrated using Doppler sonography, narrowing of the scalene interval width between the anterior and middle interscalene muscles (interscalene base) or costoclavicular space demonstrated using Duplex ultrasonography or computed tomography angiography. The present study included 45 consecutive patients (50 limbs) who underwent endoscopic transaxillary first rib resection with scalenotomy and brachial plexus neurolysis. We assessed the intraoperative parameters, including the interscalene base, blood loss, operation time, patient satisfaction, preoperative and postoperative Quick Disability of the Arm, Shoulder and Hand and complications. RESULTS: The mean intraoperatively measured interscalene base width was 6.4 mm. All patients showed improvement after surgery. The outcome was excellent in 40% of cases, good in 48%, fair in 12% and poor in none. Pneumothorax was present in 6%. There were no other complications and no recurrences. Among patients who had been followed up for at least 2 years, the Quick Disability of the Arm, Shoulder and Hand score was significantly improved (42 before surgery vs 12 at final follow-up), especially in athletes relative to non-athletes (0.2 vs 16). The present approach achieved complete relief in 43% of cases overall (91% in athletes and 16% in non-athletes). CONCLUSIONS: Endoscopically assisted transaxillary first rib resection and brachial plexus neurolysis in the zero position are useful and safe for thoracic outlet syndrome, especially in athletes.

1 April 2021 in JBJS Case Connector
Verified
Journal Article
Closed access
HSHiroshi Satake
Hiroshi Satake
YNYasushi Naganuma
Yasushi Naganuma
JSJunichiro Shibuya
Junichiro Shibuya
RHRyusuke Honma
Ryusuke Honma
TNToshiya Nito
Toshiya Nito
MTMichiaki Takagi
Michiaki Takagi
Case: We performed computed tomography (CT)-assisted dorsal approach osteosynthesis for stress fractures of the hook of the hamate using the dorsal approach in 3 high school baseball players in the hybrid operating room. Bony union was observed in all patients on CT. All patients were able to play baseball without pain for at least 6 months after surgery. However, refractures were observed in all patients at a mean 9.7 months after surgery. Conclusion: The indications of osteosynthesis for stress fractures of the hook of the hamate in baseball players should be carefully considered.

19 February 2026 in Journal of Shoulder and Elbow Surgery
Verified
Journal Article
Closed access
SSSatoru Shiraishi
Satoru Shiraishi
MTMasatoshi Takahara
Masatoshi Takahara
RMRyo Mitachi
Ryo Mitachi
JSJunichiro Shibuya
Junichiro Shibuya
TUTomohiro Uno
Tomohiro Uno
MTMichiaki Takagi
Michiaki Takagi