The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Krishnan K Unni - One of the best experts on this subject based on the ideXlab platform.
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bone tumors of the Coracoid Process of the scapula
Clinical Orthopaedics and Related Research, 1999Co-Authors: Akira Ogose, Mary I Oconnor, Krishnan K UnniAbstract:Bone tumors of the Coracoid Process of the scapula are rare, and diagnosis and treatment often are delayed. The records of 18 patients with bone tumors of the Coracoid Process were reviewed. Histologic types included eight cases of ordinary chondrosarcoma, three cases of dedifferentiated chondrosarcoma, two cases of osteoid osteoma, and one case each of osteosarcoma, plasmacytoma, lymphoma, giant cell tumor, and aneurysmal bone cyst. All 18 patients had shoulder pain, and eight of them had been treated with steroid injections for nonneoplastic conditions. Radiologically, chondrosarcoma did not always show clear cortical destruction, and one giant cell tumor had features mimicking those of chondrosarcoma. Five patients (three with dedifferentiated chondrosarcoma, one with chondrosarcoma, one with plasmacytoma) died of disease. The Coracoid Process was the site with a markedly high proportion of chondrosarcomas. Bone tumors of the Coracoid Process may be difficult to detect on plain radiographs. In the patient with persistent shoulder pain unresponsive to the selected treatment, additional imaging studies should be considered to eliminate the possibility of a bone lesion.
Akira Ogose - One of the best experts on this subject based on the ideXlab platform.
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bone tumors of the Coracoid Process of the scapula
Clinical Orthopaedics and Related Research, 1999Co-Authors: Akira Ogose, Mary I Oconnor, Krishnan K UnniAbstract:Bone tumors of the Coracoid Process of the scapula are rare, and diagnosis and treatment often are delayed. The records of 18 patients with bone tumors of the Coracoid Process were reviewed. Histologic types included eight cases of ordinary chondrosarcoma, three cases of dedifferentiated chondrosarcoma, two cases of osteoid osteoma, and one case each of osteosarcoma, plasmacytoma, lymphoma, giant cell tumor, and aneurysmal bone cyst. All 18 patients had shoulder pain, and eight of them had been treated with steroid injections for nonneoplastic conditions. Radiologically, chondrosarcoma did not always show clear cortical destruction, and one giant cell tumor had features mimicking those of chondrosarcoma. Five patients (three with dedifferentiated chondrosarcoma, one with chondrosarcoma, one with plasmacytoma) died of disease. The Coracoid Process was the site with a markedly high proportion of chondrosarcomas. Bone tumors of the Coracoid Process may be difficult to detect on plain radiographs. In the patient with persistent shoulder pain unresponsive to the selected treatment, additional imaging studies should be considered to eliminate the possibility of a bone lesion.
Kiyohisa Ogawa - One of the best experts on this subject based on the ideXlab platform.
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Nonunion of the Coracoid Process: a systematic review
Archives of Orthopaedic and Trauma Surgery, 2020Co-Authors: Kiyohisa Ogawa, Noboru Matsumura, Atsushi YoshidaAbstract:Introduction Although the Coracoid Process seems to play an important anatomical role, there are few reports concerning fracture nonunion of the Coracoid Process (CN) and its disorders. Therefore, there is no widely accepted standard for the treatment of CN. Materials and methods PubMed and Scopus were searched using “scapular fracture” and “Coracoid fracture” as search terms. The inclusion criteria were English full-text articles concerning Coracoid fracture, and articles that described patient characteristics and presented appropriate images. The exclusion criteria were descriptive cases, and cases without appropriate images. Citation tracking was conducted to find additional articles and notable full-text articles written in other languages. Fractures were classified using Ogawa’s functional classification, with Eyres’ anatomical classification used as a supplement when necessary. Results Twenty-nine patients (26 men, 3 women) with 30 CN were identified. Nine CN had a predisposing factor such as seizure disorder and renal osteodystrophy. The fracture types were 12 Ogawa type I and 18 type II. Concurrent shoulder girdle injuries at the time of initial trauma/accident were varied. There were six cases of double disruption and two of triple disruption of the superior shoulder suspensory complex (SSSC), all of which had Ogawa type I fracture. Only six CN were isolated. The most frequent cause of CN was oversight by the previous physician ( n = 11), followed by conservative treatment ( n = 7). Although 12 patients with 13 CN had symptoms attributable to CN, most of these symptoms were insignificant. Although the acromioclavicular dislocation or CN persisted in eight patients, these residual abnormalities did not significantly affect the outcomes. Conclusions Physicians treating CN should recognize that CN itself is frequently asymptomatic, and a satisfactory outcome is achieved solely by treating the concurrent injuries, even if CN remains. When CN is suspected to produce symptoms, the physician must then determine the mechanism by which the symptoms are produced, and select a treatment strategy. Level of evidence V.
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fractures of the Coracoid Process
Journal of Bone and Joint Surgery-british Volume, 1997Co-Authors: Kiyohisa Ogawa, Atsushi Yoshida, Masaaki TakahashiAbstract:We reviewed 67 consecutive patients with fractures of the Coracoid Process, classifying them by the relationship between the fracture site and the coracoclavicular ligament. The 53 type-I fractures were behind the attachment of this ligament, and the 11 type-II fractures were anterior to it. The relationship of three fractures was uncertain. Type-I fractures were associated with a wide variety of shoulder injuries and consequent dissociation between the scapula and the clavicle. Treatment was usually by open reduction and fixation for type-I fractures and conservative methods for type-II. At follow-up of the 45 available patients, 87% had excellent results, with no significant differences between the operative and non-operative groups or between the type-I and type-II fractures. We consider that operative treatment should be reserved for patients with multiple shoulder injuries with severe disruption of the scapuloclavicular connection.
Atsushi Yoshida - One of the best experts on this subject based on the ideXlab platform.
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Nonunion of the Coracoid Process: a systematic review
Archives of Orthopaedic and Trauma Surgery, 2020Co-Authors: Kiyohisa Ogawa, Noboru Matsumura, Atsushi YoshidaAbstract:Introduction Although the Coracoid Process seems to play an important anatomical role, there are few reports concerning fracture nonunion of the Coracoid Process (CN) and its disorders. Therefore, there is no widely accepted standard for the treatment of CN. Materials and methods PubMed and Scopus were searched using “scapular fracture” and “Coracoid fracture” as search terms. The inclusion criteria were English full-text articles concerning Coracoid fracture, and articles that described patient characteristics and presented appropriate images. The exclusion criteria were descriptive cases, and cases without appropriate images. Citation tracking was conducted to find additional articles and notable full-text articles written in other languages. Fractures were classified using Ogawa’s functional classification, with Eyres’ anatomical classification used as a supplement when necessary. Results Twenty-nine patients (26 men, 3 women) with 30 CN were identified. Nine CN had a predisposing factor such as seizure disorder and renal osteodystrophy. The fracture types were 12 Ogawa type I and 18 type II. Concurrent shoulder girdle injuries at the time of initial trauma/accident were varied. There were six cases of double disruption and two of triple disruption of the superior shoulder suspensory complex (SSSC), all of which had Ogawa type I fracture. Only six CN were isolated. The most frequent cause of CN was oversight by the previous physician ( n = 11), followed by conservative treatment ( n = 7). Although 12 patients with 13 CN had symptoms attributable to CN, most of these symptoms were insignificant. Although the acromioclavicular dislocation or CN persisted in eight patients, these residual abnormalities did not significantly affect the outcomes. Conclusions Physicians treating CN should recognize that CN itself is frequently asymptomatic, and a satisfactory outcome is achieved solely by treating the concurrent injuries, even if CN remains. When CN is suspected to produce symptoms, the physician must then determine the mechanism by which the symptoms are produced, and select a treatment strategy. Level of evidence V.
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fractures of the Coracoid Process
Journal of Bone and Joint Surgery-british Volume, 1997Co-Authors: Kiyohisa Ogawa, Atsushi Yoshida, Masaaki TakahashiAbstract:We reviewed 67 consecutive patients with fractures of the Coracoid Process, classifying them by the relationship between the fracture site and the coracoclavicular ligament. The 53 type-I fractures were behind the attachment of this ligament, and the 11 type-II fractures were anterior to it. The relationship of three fractures was uncertain. Type-I fractures were associated with a wide variety of shoulder injuries and consequent dissociation between the scapula and the clavicle. Treatment was usually by open reduction and fixation for type-I fractures and conservative methods for type-II. At follow-up of the 45 available patients, 87% had excellent results, with no significant differences between the operative and non-operative groups or between the type-I and type-II fractures. We consider that operative treatment should be reserved for patients with multiple shoulder injuries with severe disruption of the scapuloclavicular connection.
Robert Bogner - One of the best experts on this subject based on the ideXlab platform.
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the triple dislocation fracture anterior shoulder dislocation with concomitant fracture of the glenoid rim greater tuberosity and Coracoid Process a series of six cases
Journal of Shoulder and Elbow Surgery, 2017Co-Authors: Fabian Plachel, Jakob E Schanda, Reinhold Ortmaier, Alexander Auffarth, Herbert Resch, Robert BognerAbstract:Background A combined fracture of the glenoid rim, greater tuberosity, and Coracoid Process after anterior shoulder dislocation is a rare event. Only 1 patient has been reported in the literature. Methods All patients with a first-time traumatic anterior shoulder dislocation in a level A trauma center were retrospectively reviewed. Among the 2068 patients treated between 1998 and 2013, we identified 6 patients (0.3%; 1 female, 5 male) with “triple dislocation fracture” (anterior shoulder dislocation with concomitant fracture of the glenoid rim, greater tuberosity, and Coracoid Process). All patients underwent surgery and had computed tomography scans before surgery and the first postoperative day. Mean follow-up time was 59 months. Clinical and radiographic evaluation, Constant-Murley Score, Simple Shoulder Test, and Subjective Shoulder Value were performed at the final follow-up. Results Surgery was determined individually according to the radiologic findings, patient's age, and personal demands. Glenoid reconstruction was performed in all 6 patients, greater tuberosity refixation in 4 patients, and Coracoid Process refixation in 3. Two patients needed revision surgery due to loss of reduction. At the final follow-up, mean abduction was 133°, mean anterior flexion was 138°; the mean Constant-Murley Score was 72 points; the mean Simple Shoulder Test was 9 points; and the mean Subjective Shoulder Value was 72%. No recurrent instability occurred. Conclusions A “triple dislocation fracture,” especially Coracoid Process fractures, can easily be overlooked in radiographs. Computed tomography scans are strongly recommended in patients with a first-time traumatic shoulder dislocation. Because recurrent joint instability and secondary arthropathy are serious complications after anterior shoulder dislocation, surgery should be considered and provides satisfying to excellent results.