;;;;;;;;, 77, 6, 725, 732, Dec. 2017
ANATOMICAL RADIAL HEAD PROSTHESES: INFLUENCE ON RADIOCAPITELLAR CONTACT AREA AND PRESSURE DUE TO DIFFERENCES IN ROTATION ANGLE, YASUKAWA Taiki;TOMITA Kazunar;KAWASAKI Keikich;NEMOTO Tetsuya;KANAZAWA Takaaki;INAGAKI Katsunori;YAMADA Katsutoshi;NAKAHARA Daisuke;TANABE Yuji, Journal of The Showa University Society, 77, 6, 725, 732, 2018, The Showa University Society, Traditional radial head prostheses have a cylindrical-shaped articular surface, which is inconsistent with the joint's normal anatomy. This mismatch can create clinical problems such as deformation of the humeral capitellum and forearm pain. Recently, ellipsoid implants have been designed to reproduce the joint's natural anatomical shape. These innovations should prove effective in increasing the contact area and reducing contact pressure on the radiocapitellar joint. However, failure to set the prosthesis at a correct angle with respect to the radial axis during installation can cause adverse effects, thereby negating the surgery's benefits. The objective of the present study was to investigate whether the rotational alignment of an anatomical radial head prosthesis changes contact area with or pressure on the radiocapitellar joint. Contact area and pressure were measured using humerus and radius specimens obtained from teaching cadavers. A 100 N axial load was applied to the joints after prosthesis installation for five different insertion angles (0°; 15° and 30° anterior rotation; 15° and 30° posterior rotation). The 0° rotation condition had the largest contact area and lowest mean contact pressure. Contact area tended to decrease with increasing rotation, whereas mean contact pressure tended to increase; however, these trends were non-significant. We observed that greater misalignment during the placement of an anatomical radial head prosthesis resulted in reduced contact area and increased contact pressure on the radiocapitellar joint; however, the severity of these changes was negligible. Ideally, surgeons should set these implants with as much precision as possible. However, even if rotational misalignment arises, it does not likely cause any appreciable change in the radiocapitellar contact area or pressure, at least over the range of angles tested in this study.
ASSESSMENT OF MECHANICAL STRENGTH POST-CYCLIC LOADING IN PLATE TREATMENT FOR DISTAL HUMERAL FRACTURES, YAGI Toshio;KUBO Kazutoshi;MARUYAMA Hirofumi;KAWASAKI Keikichi;INAGAKI Katsunori;TOMITA Kazunari;KANAZAWA Takaaki;IKEDA Jyun;OTSUKA Naruhito, Journal of The Showa University Society, 78, 1, 24, 30, 2018, The Showa University Society, Recent surgical treatments with new implants for distal humeral fractures have been improved and they contribute to an excellent clinical outcome. We comparatively analyzed post-cyclic loading mechanical strength using cadaveric humerus specimens. The specimens were divided into two groups treated by the Mayo Clinic Congruent Elbow Plate System with a locking screw (LS) or a non-locking screw (NLS). We created simulated models of AO classification Type C fractures of distal humerus. Twelve elbows of six cadavers were used. We used the left and right arms of the same cadaver. The most distal point in both groups were fixed with NLS. The second hole from the most distal point was fixed with LS (LS group) or another NLS (NLS group). The test was conducted by applying simultaneous compressive load and torsional moment 250,000 times. After the test, axial direction displacement and the angle of torsion were measured to calculate the torsional rigidity of both groups. Mean displacement in the axial direction and mean torsional angles were 0.32mm, 17.1° and 0.27mm, 15.1° in the NLS and LS groups, respectively. Torsional rigidity measurements were higher in the LS group and the torsional reduction rate was lower in the NLS group. Both groups had sufficient fixation in the axial direction. The LS group had higher initial torsional rigidity but a high rigidity reduction rate. The LS group was associated with higher torsional loading at the initial rigidity phase, which might generate micro-motion at the bone-screw interface.
Volar dislocation of distal radioulnar joint with ulnar styloid process fracture:A case report, HIGASHIYAMA Yusuke;TOMITA Kazunari;KAWASAKI Keikichi;NAKAMURA Masanori;INAGAKI Katsunori, Journal of the Eastern Japan Association of Orthopaedics and Traumatology, 30, 4, 539, 543, 2018, The Eastern Japan Association of Orthopaedics and Traumatology,
Case report: 14 years old, female. Dorsiflexion injury of left wrist jumping over the vaulting box in the class of physical education. Volar dislocation of distal radioulnar joint (DRUJ) and ulnar styloid process fracture was found in the X-ray photograph and computer tomography imaging. Tension band wiring for ulnar styloid process fracture and arthrodesis of DRUJ with Kirschner wire (K-wire) were performed. K-wire was removed and upper extremity was fixed with A-E cast in postoperative 2 weeks. The cast was removed 6 weeks after the operation and ROM exercise of the wrist was started. Implant removal was done 8 weeks after the surgery.
Surgical Treatment for Advanced Osteoarthritis of the Elbow Using Arthroscopy, Tomita Kazunari;Watanabe Mikihiko;Ikeda Jun;Suzuki Masashi;Ohara Kenji;Kubo Kazutoshi;Kawasaki Keikichi;Inagaki Katsunori, Journal of Japan Elbow Society, 23, 2, 286, 290, 2016, Japan Elbow Society
Mid Term Clinical Result of Total Elbow Arthroplasty in Patients 45 Years of Age or Less, Ikeda Jun;Tomita Kazunari;Kawasaki Keikichi;Maeda Toshio;Nakamura Masanori;Inagaki Katsunori, Journal of Japan Elbow Society, 23, 2, 258, 262, 2016, Japan Elbow Society
Nonunion or Necrosis After Double Locking Plating for Transcondylar Fractures of the Humerus in the Elderly, Kawasaki Keikichi;Nakamura Masanori;Inagaki Katsunori;Tomita Kazunari;Ikeda Jun;Kubo Kazutoshi;Murashima Ippei;Maruyama Hiroshi;Sakai Takeshi;Niizuma Gaku, Journal of Japan Elbow Society, 23, 2, 140, 142, 2016, Japan Elbow Society
Vascularized Bone Graft Combined with Locking Plate Fixation for Scaphoid Nonunion After Screw Fixation, KAWASAKI Keikichi;KUBOTA Yutaka;OOTSUKA Takaharu;INAGAKI Katsunori;TOMITA Kazunari;UENO Yukio;MAEDA Toshio;NEMOTO Tetsuya;SAKAI Takeshi;TUTUI Sadaaki;NIIDUMA Gaku, Journal of Japanese Society of Reconstructive Microsurgery, 29, 3, 161, 166, 2016, Japanese Society of Reconstructive Microsurgery, Introduction : The use of headless screws ( HS ) is recommended during internal fixation in cases of scaphoid nonunion, but it is difficult to treat scaphoid nonunion with HS fixation after the failure of internal fixation. Therefore, we used a locking plate system to achieve internal fixation in a case of scaphoid nonunion after a failed operation. We report two cases of postoperative nonunion after attempted fixation with HS. The patients underwent a vascularized bone graft transfer from the distal radius and internal fixation with a locking plate system.
Case : The patients were 19 and 47 years old, respectively, and were both male. The previous operative procedures included percutaneous screw fixation, and a free bone graft combined with screw fixation. The time between the first and second procedures was 12 and 22 months, respectively. In each case, preoperative X-rays showed that bone union had not been achieved, and bone defects were present around the proximal or distal screw. We harvested the flap from the dorsal part of the distal radius using the Zaidemberg method after removing the screw, placed a vascularized grafted bone on the radial side of the scaphoid bone, and inserted a locking plate on the volar side.
Results : Bone union was successfully achieved in both cases, and the clinical results were good ( the mean Mayo wrist score was 82.5 points ).
Conclusion : Our combined surgical procedure involving vascularized bone grafting and locking plate fixation is useful for treating scaphoid nonunion after HS fixation.
Treatment Experience of Lateral Humeral Epicondyle Fractures Associated with Elbow Dislocation in Children, Kubo Kazutoshi;Kawasaki Keikichi;Tomita Kazunari;Ikeda Jun;Inagaki Katsunori, Journal of Japan Elbow Society, 24, 2, 55, 59, 2017, Japan Elbow Society
Surgical Treatment of Olecranon Fractures in the Elderly; Comparison between Fixation with Tension Band Wiring and Plate, ;;;;;;;;;, Journal of Japan Elbow Society, 25, 2, 115, 118, 2018, Japan Elbow Society
A CASE REPORT : SYNOVIAL CHONDROMATOSIS IN THE PISOTRIQUETRAL JOINT WITH TRIANGULAR FIBROCARTILAGE COMPLEX INJURY, NIIKURA Seiichi;EGURO Takeshi;TOMITA Kazunari;KUBOTA Yutaka;KUBO Kazutoshi;KAWASAKI Keikichi;INAGAKI Katsunori, Journal of The Showa University Society, 79, 1, 81, 86, 2019, The Showa University Society, We report the case of a 51-year-old woman who presented with pain on the ulnar side of the right wrist during a tennis match and was referred to our department for suspected triangular fibrocartilage complex (TFCC) injury by a previous physician. Based on physical and imaging findings, in addition to the TFCC injury, a tumor was found in the pisotriquetral joint. Arthroscopic repair for TFCC injury and open resection for the tumor in the pisotriquetral joint were performed. The tumor was finally diagnosed as synovial chondromatosis based on pathological examination. Pain improved and no recurrence was observed at the latest observation.
Synovial chondromatosis, which occurs in the pisotriquetral joint, is relatively rare, and is often difficult to diagnose as the pain gradually progresses. As for the treatment of synovial chondromatosis, evaluation of the stage is important, and inadequate treatment may occur in postoperative recurrence or malignant transformation. Based on the past similar reports, careful examination of the clinical features and precise assessment based on MRI findings are necessary, and open resection with synovial tissue of the joint is required.
Treatment of Hybrid Suspensionplasty for Thumb Carpometacarpal Osteoarthritis of Postmenopausal Women, KUBOTA Yutaka;;;;, Japanese Journal of Joint Diseases, 39, 2, 53, 59, 2020, Japanese Society for Joint Diseases
Ulnar Parametacarpal Flap in the Treatment of Severe Dupuytren Contracture, KAWASAKI Keikichi;INAGAKI Katsunori;TOMITA Kazunari;UENO Yukio;MAEDA Toshio;NEMOTO Tetuya;SAKAI Takeshi;KUBOTA Yutaka;OTSUKA Takaharu, Journal of Japanese Society of Reconstructive Microsurgery, 26, 2, 69, 74, 2013, Japanese Society of Reconstructive Microsurgery, We report the use of ulnar parametacarpal flaps for skin defects after surgical treatment for severe Dupuytren contractures of the little finger. Five flaps were used for five little fingers. All cases were Meyerding grade 3 and the average patient age was 66.8 years. All cases affected the dominant hand. We confirmed the pulse on the ulnar side of the MP joint with Doppler inspection before operation. The abductor digiti minimi (ADM) fascial flap was elevated from the proximal side and rotated 90 degrees around the metacarpophalangeal (MP) joint to cover the skin defect. There was no necrosis of flaps. We assessed the postoperative results according to the percent improvement of total extension loss (MP+PIP). The average percentage improvement was 89.8%. This flap technique is simple and provided stable blood circulation, and therefore, this method is a useful alternative for severe little finger Dupuytren contracture. This study reports the short-term clinical results.
FRACTURE OF THE OSSIFIED ACHILLES TENDON (A CASE REPORT), ;;;;;, 72, 4, 520, 524, Aug. 2012
Temporary transarticular fixation using K-wire for elbow fracture-dislocation with coronoid fracture, Kawasaki Keikichi;Inagaki Katsunori;Sakai Takeshi;Morohoshi Akiko;Tsutsui Sadaaki;Nishikawa Hiroki;Yasuda Tomohiro;Kubo Kazutoshi;Ikeda Jun;Tomita Kazunari, Journal of Japan Elbow Society, 27, 2, 127, 130, 2020, Japan Elbow Society
A CASE OF HERPES ZOSTER WHICH NEEDED DIFFERENTIAL DIAGNOSIS OF DEGENERATIVE LUMBAR DISEASES WITH FORMER LOWER EXTREMITY PAIN, TANAKA Hironori;FURUMORI Satoshi;TOMITA Kazunari;TAKIGAWA Souichirou;INAGAKI Katsunori, Journal of The Showa Medical Association, 72, 4, 509, 513, 2012, The Showa University Society, A 67-year-old man complained left leg pain from five days before visiting our clinic. He had been receiving adjacent chemotherapy for rectal cancer, following two operations.
He complained of pain at L 5 nerve root area of his left lower extremity, therefore we started treatment and examination for his pain under the diagnosis of lumbar spinal canal stenosis. His pain worsened and we observed rash of L 4 and L 5 nerve root area after five days. Therefore, herpes zoster on the lower extremity was diagnosed, and antiviral drugs administration was started. The bullas became dry and the lower extremity pain had decreased one month later.
It is difficult to differentiate herpes zoster from degenerative nerve root diseases in patients who have lower extremity pain, without vesicles. Therefore, it is important to carefully check elderly patients, especially compromised patients.
Clinical study of tendon ruptures after volar plate fixation of distal radius fractures, MAEDA T.;TAKIGAWA S.;INAGAKI K.;TOMITA K.;IKEDA J.;KAWASAKI K., 33, 2, 280, 284, 25 May 2011
The clinical review of distal radius fracture using locking volar column distal radius plate, TOMITA K.;MAEDA T.;NAKAMURA H.;NIITSUMA G.;INAGAKI K.;KAWASAKI K., 33, 2, 269, 274, 25 May 2011
;;;;;, The journal of Japanese Society for Surgery of the Hand, 27, 3, 234, 238, 20 Dec. 2010
;;;;, The journal of Japanese Society for Surgery of the Hand, 27, 3, 163, 165, 20 Dec. 2010
Clinical results of volar plating for AO type C fractures of the distal radius with polyaxial locking plate : APTUS2.5, KAWASAKI K.;INAGAKI K.;TAKIGAWA S.;TOMITA K.;UENO Y.;MONNMA S., 32, 2, 240, 243, 25 May 2010
;;;;, 26, 2, 15, 18, 18 Jan. 2010
;;;, 26, 8, 1007, 1016, 01 Aug. 2009
;;, 26, 8, 01 Aug. 2009
;;;;;, 26, 4, 399, 403, 01 Apr. 2009
Clinical results of plate fixation for distal radius fracture in elderly females : Comparison between locking plate and non-locking plate, MOMMA Shusuke;KAWASAKI Keikichi;INAGAKI Katunori;KOISO Munehiro;TOMITA Kazunari;TAKIGAWA Souichiro;MIYAOKA Hideyo, 39, 4, 137, 142, 01 Aug. 2008
;;;;, 38, 01 Mar. 2007
Clinical Results of Volar Plating for AO Type C Fractures of the Distal Radius : A Comparison between Locking Plate and Non-locking Plates, KAWASAKI Keikichi;INAGAKI Katsunori;TAKIGAWA Souichirou;MIYAOKA Hideyo;TOMITA Kazunari, 23, 6, 888, 893, 25 Dec. 2006
Scaphoid Nonunion Treated with Screw Fixation with Wedged Bone Graft and Vascularized Bone Graft, INAGAKI Katsunori;TAKIGAWA Souichirou;HIRAHARA Hirotsune;TOMITA Kazunari;MIYAOKA Hideyo, 22, 2, 42, 45, 31 Oct. 2005
Clinical Results of the Plate Fixation for Distal Radius Fractures : Comparison between Locking Plate and Unlocking Plate, KAWASAKI Keikichi;INAGAKI Katsunori;TAKIGAWA Souichirou;MIYAOKA Hideyo;TOMITA Kazunari, 22, 2, 32, 36, 31 Oct. 2005
Treatment of Carpal Bone Dislocations, KAWASAKI Keikichi;TAKIGAWA Souichirou;INAGAKI Katsunori;TOMITA Kazunari;MIYAOKA Hideyo, 21, 6, 736, 741, 25 Dec. 2004
;;, 28, 4, 293, 296, 2012
Acute and chronic median neuropathy after wrist fracture and dislocation, TOMITA Kazunari;TAKIGAWA Souichirou;INAGAKI Katsunori;HIRAHARA Hirotsune;KAWASAKI Keikichi;MIYAOKA Hideyo, 15, 2, 257, 262, 30 Jun. 2003
Osteosynthesis with Acutrak^【○!R】headless compression screw, TAKIGAWA S.;AIHARA M.;MOGI T.;OKADA K.;IKEDA J.;INAGAKI K.;FUKUSHIMA K.;HIRAHARA H.;TOMITA K.;MIYAOKA H., 25, 1, 423, 428, 01 May 2003
A CASE REPORT OF CALCIUM PYROPHOSPHATE IN JOINT FLUID AND TUBERCULOUS ARTHRITIS DIAGNOSED BY SYNOVIAL MEMBRANE BIOPSY, IMAI Koushirou;TOMITA Kazunari;TAKEI Mituhiko;MIYAOKA Hideyo, Journal of The Showa Medical Association, 62, 1, 63, 65, 2002, The Showa University Society, A 33-year-old woman complained of arthralgia and swelling in the left knee without any provoking cause. After being treated with a single intra-articular injection of sodium hyaluronate in our outpatient clinic, the symptoms improved, but she later returned because the knee pain had recurred and was more intense. Marked swelling and patellar ballottement were observed, but the knee did not feel hot and there was no flare. Hematological data revealed a leukocyte count of 2970/μL, C-reactive protein 2+, erythrocyte sedimentation rate of 25 mm/h, negative rheumatoid factor (RF), and uric acid value of 3.3mg/dL. The synovial fluid was yellow and slightly cloudy, and examination for crystals revealed calcium pyrophosphate. Standard bacterial cultures and a tubercle bacillus culture were negative. An X-ray examination disclosed no abnormal findings, such as calcification. Since pseudogout was suspected, arthrocentesis, irrigation, and intra-articular injection of a steroid drug were preformed several times. However, the patient experienced recurrent bouts of hydrarthrosis and pain, and arthroscopy was performed. Histopathological examination of a biopsy specimen led to a diagnosis of tuberculous gonitis.
;;, 29, 6, 708, 711, 2013
Two cases of Forestier's disease causing dysphagia, TANAKA Yousuke;SUGAYA Shuuichi;NAGASHIMA Kazuo;SAKURAI Masahiro;MOROOKA Manabu;SAWADA Takatoshi;TOMITA Kazumasa;FUJIMAKI Etsuo, 29, 1, 23, 26, Feb. 1998
;;, The Japanese Journal of Rehabilitation Medicine, 34, 12, 911, 912, 18 Dec. 1997, The Japanese Association of Rehabilitation Medicine
Maneuvers and diagnostic values of brachial plexus tension test in patients with cervical radiculopathy, HIRAIZUMI Y.;;;;;;;;;;;;;, 8, 1, 17 Mar. 1997
;;, The Japanese Journal of Rehabilitation Medicine, 33, 12, 1020, 1021, 18 Dec. 1996, The Japanese Association of Rehabilitation Medicine
Cervical blood flow analysis in patients who complained of cervical symptoms, HIRAIZUMI Y.;;;;, 7, 1, 25 Apr. 1996
Factors influencing functional results of conservative treatment for distal radius fractures, ;;, 55, 10, 1283, 1287, Sep. 2004
;;, 30, 4, 571, 574, 2014
;;, 31, 3, 176, 179, 2014
;;, 31, 5, 689, 693, 2015
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81, 7, 15, Dec. 2016
Study on the validity of the tranexamic acid intravenous administration in the cases with lumbar spinous process-splitting laminoplasty, ;;;;;, 28, 4, 424, 427, Dec. 2016
Concept of complex elbow instability, ;;;, 60, 9, 1055, 1059, Aug. 2017
Clinical challenge for the scaphoid pseudarthrosis by minimally invasive arthroscopic surgery, ;;;, 61, 1, 41, 49, Jan. 2018
Prevalence of Postoperative Nausea and Vomiting (PONV) in Patients Undergoing Spinal Surgery, ;;;;;;;;;;, Journal of spine research : official journal of the Japanese Society for Spine Surgery and Related Research, 10, 5, 863, 868, May 2019
Current state of postoperative nausea and vomiting at the time of orthopedic general anesthesia surgery, ;;;;;, 70, 9, 933, 937, Aug. 2019
Patellar dislocation with Hoffa fracture : a case report, ;;;;;, 62, 9, 1153, 1157, Aug. 2019
DVT/PE rate and risk factors after primary TKA using venous ultrasonography and contrast enhanced CT, ;;;;;, 62, 10, 1291, 1295, Sep. 2019
Evaluation of Age-related Changes of Anatomical and Mechanical Alignment in Normal Knee, ;;;;;;;;, 55, 1, 55, 58, Jan. 2020
Distal humeral epiphyseal separation diagnosed with air-contrast arthrography : a case report, ;;;;;, 63, 1, 113, 117, Jan. 2020
Duloxetine use in perioperative period after total knee arthroplasty, comparison with tramadol/acetaminophen, ;;;;;, 71, 3, 211, 213, Mar. 2020
37, 4, 445, 447, Apr. 2020
;, 28, 3, 420, 422, 2020
36, 51, 56, 1999