Publications by authors named "Yuji Tomori"

Radiocarpal dislocation is an uncommon injury that is usually caused by high-energy trauma. Herein, we present two cases of dorsal radiocarpal dislocation with radial styloid fractures that were treated by arthroscopy-assisted reduction and internal fixation. Wrist arthroscopy provides accurate information on intra-articular fractures and carpal and/or intracarpal ligamentous tears of the radiocarpal joint.

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Supracondylar humerus fractures are the most common upper limb injury in children, but the incidence of flexion-type fractures is relatively low. Herein, we report the clinical results for three children with Gartland type II flexion-type supracondylar humeral fractures treated by closed reduction and percutaneous pinning. From April 2004 to March 2020, 102 children with supracondylar humeral fractures underwent surgery at our hospital and related institutions.

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Posttraumatic malunion with combination of angular, rotational, and shortening deformity of the proximal phalanx may cause scissoring of a finger and impairment of hand function. Cosmetic disfigurement and severe dysfunction of fingers require surgical correction, most often via open corrective osteotomies and rigid fixation with a plate or screws. However, such an approach requires a longer incision, inevitably results in a scar, and has a higher potential for extensor tendon adhesion.

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Article Synopsis
  • - This study investigates the effectiveness of single vs. double-plate fixation in treating transcondylar humeral fractures in older adults, analyzing patient outcomes over a period from 2002 to 2019.
  • - A total of 28 patients were divided into two groups based on their treatment: 11 patients with single-plate fixation and 17 with double-plate fixation, with findings showing no significant differences in certain complications but notable differences in elbow flexion.
  • - The results suggest that double-plate fixation may be better for optimal recovery, particularly in terms of enhancing early mobility and preserving elbow joint function.
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Mycobacterium abscessus infection of the upper extremities is uncommon. However, M abscessus can cause severe chronic tenosynovitis, and delayed diagnosis may result in poor outcomes. We describe an unusual clinical case of purulent flexor tendon synovitis followed by subcutaneous tendon rupture due to M abscessus infection in a patient with diabetes mellitus.

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We present a case of solitary chondrosarcoma arising from the proximal phalanx of the ring finger in an elderly man. The chondrosarcoma developed over a period of 14 years, during which the phalanx became progressively more deformed. Several radiographic investigations were carried out, but the patient declined further suggested diagnostic examinations (computed tomography, magnetic resonance imaging, biopsy).

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Article Synopsis
  • * No major complications like infections were found; most patients (7 out of 8) healed well, but one had a nonunion, and some experienced complications like joint deformities or surface collapse.
  • * Overall, ORIF was effective for treating noncomminuted CSFs, yielding good functional results, but managing more complex fractures remains a challenge.
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Unlabelled: Two surgical approaches, an anterolateral and a posterolateral approach, have been advocated for lateral condylar fractures (LCFs) of the humerus in children. The purpose of this study was to evaluate the radiographic and clinical outcomes of the 2 surgical approaches.

Methods: We retrospectively analyzed the data of consecutive patients <15 years of age with an LCF treated via open reduction and internal fixation through 1 of 2 surgical approaches during the period of April 2000 to March 2019.

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Ganglion cysts are common benign lesions in the hand and wrist. However, intratendinous ganglion cysts are uncommon. We present a case of intratendinous ganglion cyst in the extensor pollicis longus (EPL) tendon of the right hand of a 73-year-old woman.

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Posttraumatic malunion of the phalanx with rotational deformity may cause crossing of the finger and impair hand function. Cosmetic disfigurement and severe dysfunction of the fingers require surgical correction, most often via open corrective osteotomies and rigid fixation with plates. However, such an approach requires a longer incision, inevitably results in a scar, and has a higher potential for extensor tendon adhesions, which result in extension lags.

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Rationale: The distal radius is the region of the body with the highest incidence of physeal injury. However, it is uncommon for the distal radius to undergo growth arrest without a history of trauma. We present a case of premature closure of the distal radial physis without evident history of trauma in a girl.

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Article Synopsis
  • Acute calcium deposits are benign conditions that usually resolve on their own, commonly found in the shoulder but rarely in the fingers, which can lead to misdiagnosis and unnecessary treatments.
  • A 69-year-old woman experienced worsening pain and swelling in her left fifth finger, enduring over 2 months of inadequate treatments before a diagnosis of acute calcific periarthritis was confirmed through imaging.
  • She opted against invasive procedures, relying on analgesics and massage, leading to gradual pain relief and complete resolution of the calcification within 6 months, with no recurrence observed over 2 years.
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Thumb opposition is an essential movement for daily use of the hand, including precise pinching/grasping and fine and complicated hand movement. Although studies have reported use of several donor tendons for opponensplasty, opponensplasty using the palmaris longus (i.e.

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Rationale: Habitual volar dislocation of the ulnar head with a locked distal radioulnar joint (DRUJ) is a rare complication after distal radius fracture. We present a case of habitual volar dislocation of the ulnar head in a woman with a dorsally displaced malunited distal radius fracture.

Patient Concerns: A 72-year-old woman presented with occasional painful locking of the forearm in full supination.

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Purpose: To investigate the correlation between ulnar styloid fracture (USF) associated with distal radius fracture (DRF) and triangular fibrocartilage complex (TFCC) injuries and to elucidate whether the presence or location of an USF in a patient with DRF predicts the presence of traumatic TFCC injuries.

Methods: From 2005 to 2018, an arthroscopic evaluation was performed to detect TFCC injuries associated with DRF. The presence and location of USFs were evaluated using computed tomography.

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Ulnar-sided wrist pain is common among athletes who subject their wrists to forceful rotational movements. Injury to the numerous complex structures in the ulnar wrist, including the extensor carpi ulnaris (ECU) tendon and triangular fibrocartilage complex (TFCC), can result in ulnar-sided wrist pain. Although differentiating between ECU tendinitis and TFCC injury is necessary, ECU tendon disorders and TFCC injury occasionally occur concurrently.

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Triangular fibrocartilage complex (TFCC) tears can cause ulnar-sided wrist pain. Arthroscopy is important in treatment and diagnosis, and arthroscopic repair of TFCC tears is indicated after failure of nonsurgical treatments such as cast immobilization, splinting, and administration of nonsteroidal anti-inflammatory drugs for more than 3 months. Several arthroscopic procedures have been described, including inside-out, outside-in, and all-arthroscopic techniques.

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To elucidate whether nonsurgical treatment for Preiser disease is effective.Eight patients with Preiser disease (median age 59 [47-69] years) underwent nonsurgical treatment (median symptom-onset-to-treatment interval 8 [9-180] months). At presentation, 7 patients complained of constant pain and 1 of motion-related pain.

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To elucidate the clinical outcomes of nonsurgical treatment for transcondylar fractures of the humerus.From April 2010 to March 2018, 32 elbows with AO classification 13A-2.3 transcondylar fractures of the humerus (extra-articular fracture, metaphyseal simple, transverse, transmetaphyseal) in adult patients were treated in our hospital and related facilities.

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Background: Standard volar plating of distal radius fractures may not adequately fix the volar lunate facet (VLF) fragment, which can result in volar carpal subluxation. We hypothesized that the size of VLF fragments distal to the watershed line might affect reduction loss after distally placed volar locking plate fixation for intra-articular distal radius fracture and examined if the presence of small displaced VLF fragments was a risk factor for reduction loss.

Methods: Twenty-seven hands of 27 patients with intra-articular distal radius fractures with VLF fragments distal to the watershed line were treated by using Acu-Loc 2 volar distal radius locking plate fixation.

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Background: Kirschner wires (K-wires) are commonly used to treat displaced lateral humeral condyle fracture in children. However, K-wire fixation alone is insufficient for early elbow range of motion (ROM) exercises. Fixation combined with tension band wiring (TBW) converts distraction forces into compression forces, which provides more rigid fixation than K-wire fixation alone.

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Rationale: Spontaneous closed extensor tendon rupture is a rare complication of Kienböck disease with only 23 cases reported in the English literature.

Patient Concerns: We present a case of painless attritional rupture of the extensor tendons of the right fourth finger in a 69-year-old woman with Kienböck disease and review reported cases of Kienböck disease with subcutaneous closed tendon rupture.

Diagnoses: Physical examination had shown mild painless swelling of the dorsum of the right hand.

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Background: We compared the clinical results of a newly modified abductor pollicis longus (APL) suspension arthroplasty with trapeziectomy procedure (modified Thompson procedure) with those of the original APL suspension arthroplasty with trapeziectomy procedure (original Thompson procedure) for treatment of advanced osteoarthritis of the thumb carpometacarpal (CMC) joint and assessed the effectiveness of the modified Thompson procedure for thumb CMC osteoarthritis.

Methods: Ten hands of 10 patients (Group 1) were treated with the original Thompson procedure. Twenty hands of 16 patients (Group 2) were treated with the modified Thompson procedure, in which the bone tunnel positions were rearranged for a more dorsoradial passage of the transferred APL.

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Purpose: We aimed to evaluate the clinical results using the pins and rubbers traction system (PRTS) as described by Suzuki et al. for unstable intra-articular fractures of the proximal interphalangeal (PIP) joint and to assess the efficacy and the indication of the technique of the PRTS.

Methods: Thirty-nine fingers in 39 patients (mean age 46.

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Purpose: To determine clinical outcomes of Preiser disease treated with closing radial wedge osteotomy (CRWO).

Methods: Seven patients with Preiser disease underwent CRWO. Two wrists had stage 2 disease, 3 had stage 3, 2 had stage 4 (Herbert-Lanzetta classification).

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