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Coronoid Process Fracture

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101. Upper Limb Prosthetics (Overview)

fossa (medially) allow the humerus to accept the head of the radius and the coronoid process of the ulna when the joint is in full flexion. On the central aspect of the posterior humerus above the trochlea of the humeral condyle is the olecranon fossa, which allows the humerus to accept the olecranon of the ulna when the joint is in extension. The olecranon is the proximal end of the ulna, from which the C-shaped trochlea notch is carved. For more information about the relevant anatomy, see (...) Upper Limb Prosthetics (Overview) Elbow and Above-Elbow Amputations: Background, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzNzg4Ni1vdmVydmlldw== processing > Elbow and Above

2014 eMedicine.com

102. Ulnar Neuropathy (Overview)

epicondyle, the ulnar nerve pierces the flexor-pronator aponeurosis, the fibrous common origin of the flexor and pronator muscles. The ligament of Spinner is an additional aponeurosis between the flexor digitorum superficialis of the ring finger and the humeral head of the flexor carpi ulnaris. This septum is independent of the other aponeuroses and attaches directly to the medial epicondyle and the medial surface of the coronoid process of the ulna. With anterior transposition of the ulnar nerve (...) process The tubercle of the coronoid process is 1.5 times larger in men Contreras et al suggested that the coronoid process may be a potential site for ulnar nerve compression in men and that the increased subcutaneous fat around the ulnar nerve in women may provide a protective advantage against acute ulnar neuropathy. [ ] Previous Next: Prognosis A favorable surgical outcome is more likely for sensory function than for motor function. Overall, however, a favorable outcome occurs in 85-95% of cases

2014 eMedicine.com

103. Elbow Trauma, Pediatric

olecranon (N=23, 72%), coronoid process (N=4, 13%), and supracondylar (N=3, 9%). The frequency of olecranon fractures on follow-up may suggest the occult nature of these fractures. [ ] A study of 62 elementary school baseball players (grades 4-6; ages 9-12 yr) for elbow injuries using MRI found positive findings in 26 (41.9%), all confined to the MCL. Screening was performed using low-magnetic-field (0.2-T) MRI. [ ] In a study of 900 young baseball players (aged 7-11 yr), 35.2% reported episodes (...) Elbow Trauma, Pediatric Imaging in Pediatric Elbow Trauma: Practice Essentials, Anatomy, Fractures of the Distal Humerus Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvNDE1ODIyLW92ZXJ2aWV3 processing > Imaging

2014 eMedicine Radiology

104. Elbow, MRI

, a tear of the LUCL ligament may be seen at its humeral origin, and on T2W images, disruption of ligamentous fibers with fluid signal intensity may be seen. Associated findings include fractures of coronoid process, radial head, or capitellum and dislocation of the radius or ulna. Avulsions and tears Avulsions and tears of tendons about the elbow are uncommon. Avulsion at sites of tendinous attachment may occur as a complication of systemic diseases, such as primary and secondary hyperparathyroidism (...) by using MRI, which demonstrates bone-marrow edema with or without a hypointense linear fracture line. Occult fractures are most commonly seen in the region of the radial head in adults and in the supracondylar region in children. A fracture of the coronoid process is due to bony avulsion of the brachialis insertion, and posterior dislocation of the ulna and an olecranal fracture due to direct trauma or forced flexion on an extended forearm may be seen. Fractures of the lateral condyle result from

2014 eMedicine Radiology

105. Floating Elbow (Diagnosis)

of rotation of the trochlea. [ , ] A thin shell of bone separates the coronoid and olecranon fossae just proximal to the trochlea. The olecranon is the flared proximal portion of the ulna. It articulates with the trochlea at its semilunar notch. The ulnar contribution to the proximal radioulnar joint lies just lateral to the coronoid process, the radial notch. The proximal radius is composed of a concave disk-shaped radial head and a short narrow neck. The ulnohumeral articulation is characterized (...) Floating Elbow (Diagnosis) Floating Elbow: Background, Anatomy, Etiology Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzMTEwMy1vdmVydmlldw== processing > Floating Elbow Updated: Jul 05, 2018 Author: William

2014 eMedicine Surgery

106. Facial Trauma, Sports-Related Injuries

) and from collision between players (24.5% of cases). The incidences of specific fractures were as follows [ ] : Nasal: 35.9% Orbital: 33.5% Skull: 30.5% Maxillary: 12.6% Mandibular: 7.2% Zygomaticomaxillary complex: 4.2% Naso-orbitoethmoid complex: 1.2% A Dutch study suggested that a relationship exists between specific sports and the type of associated maxillofacial fractures. In the study, of 108 patients (128 sports-related maxillofacial fractures), only soccer players suffered coronoid process (...) fracture impinging on the coronoid process of the mandible. Subconjunctival hemorrhage of the lateral sclera is a hallmark of a lateral orbital wall fracture, which is a component of a ZMC fracture Abnormal mobility of the maxilla or hard palate can be detected by grasping the anterior maxillary teeth and firmly attempting to move the maxilla in all directions while stabilizing the forehead. Examination of oral occlusion is combined with examination of the mandible. Examination of the lower third

2014 eMedicine Surgery

107. Initial Evaluation and Management of Maxillofacial Injuries

to the medial canthus while palpating the nasal bridge can be helpful in differentiating fracture of the NOE from nasal bridge edema. Zygomatic arch fractures Fracture of the arch of the zygoma may exhibit a palpable defect over the area involved. Pain upon palpation and limitation of movement of the mandible resulting from interference with movement of the coronoid process of the mandible may be found upon physical examination. Zygomaticomaxillary complex (ZMC) fractures Clinical findings of ZMC fractures (...) distance, even with proper reduction of the bones [ ] . Zygomatic arch fractures Patients with isolated minimally displaced fractures to the zygomatic arch usually do not require treatment unless it caused a facial asymmetry. Marked displacement and/or impingement of the coronoid process of the mandible, preventing the patient from opening their mouth, requires admission and an open reduction via transoral (Keen) or temporal (Gillies) approach. In cases of a severe comminuted fracture an open reduction

2014 eMedicine Surgery

108. General Approach to the Trauma Patient

maxillary sinus walls. The base or submentovertex view allows visualization of the zygomatic arches and any impingement of these bones upon the coronoid process of the mandible. Mandible radiography includes a PA view to assess fractures of the body, angle, and lower ramus of the mandible. Lateral oblique mandible views visualize the body, angle, ramus, coronoid, and condylar processes of the mandible. Additionally, a Towne view taken 35° caudal through the frontal bones and between (...) processing > General Approach to the Trauma Patient Updated: Aug 16, 2016 Author: Yael Halaas, MD; Chief Editor: Arlen D Meyers, MD, MBA Share Email Print Feedback Close Sections Sections General Approach to the Trauma Patient Overview Overview An otolaryngologist/head and neck surgeon might approach the acute trauma patient in a compartmentalized fashion. This approach is inappropriate and may lead to misdiagnosis or inadequate treatment. The patient must be assessed as a whole by the maxillofacial

2014 eMedicine Surgery

109. Elbow and Above-Elbow Amputations (Diagnosis)

fossa (medially) allow the humerus to accept the head of the radius and the coronoid process of the ulna when the joint is in full flexion. On the central aspect of the posterior humerus above the trochlea of the humeral condyle is the olecranon fossa, which allows the humerus to accept the olecranon of the ulna when the joint is in extension. The olecranon is the proximal end of the ulna, from which the C-shaped trochlea notch is carved. For more information about the relevant anatomy, see (...) Elbow and Above-Elbow Amputations (Diagnosis) Elbow and Above-Elbow Amputations: Background, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzNzg4Ni1vdmVydmlldw== processing

2014 eMedicine Surgery

110. Mannerfelt Syndrome (Diagnosis)

affecting other flexor tendons in a more ulnar direction. [ ] Bilateral ruptures have been reported. [ ] In his series of patients with affected flexor tendons in the carpal tunnel, Mannerfelt reported that 20 of 25 patients had involvement of the FPL tendon and that nearly all flexor tendon attritions occurred in women. [ ] Next: Anatomy The FPL originates from the middle of the anterior surface of the radial shaft, the adjoining part of the interosseous membrane, and the coronoid process (...) Mannerfelt Syndrome (Diagnosis) Mannerfelt Syndrome: Background, Anatomy, Pathophysiology and Etiology Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTI0NTY3MS1vdmVydmlldw== processing > Mannerfelt Syndrome

2014 eMedicine Surgery

111. Cubital Tunnel Syndrome (Diagnosis)

distal to the medial epicondyle, the ulnar nerve pierces the flexor-pronator aponeurosis, the fibrous common origin of the flexor and pronator muscles. The ligament of Spinner is an additional aponeurosis between the flexor digitorum superficialis of the ring finger and the humeral head of the flexor carpi ulnaris. This septum is independent of the other aponeuroses and attaches directly to the medial epicondyle and the medial surface of the coronoid process of the ulna. With anterior transposition (...) overlying the tubercle of the ulnar coronoid process The tubercle of the coronoid process is 1.5 times larger in men Contreras et al suggested that the coronoid process may be a potential site for ulnar nerve compression in men and that the increased subcutaneous fat around the ulnar nerve in women may provide a protective advantage against acute ulnar neuropathy. [ ] Previous Next: Prognosis A favorable surgical outcome is more likely for sensory function than for motor function. Overall, however

2014 eMedicine Surgery

112. Cubital Tunnel Syndrome (Overview)

epicondyle, the ulnar nerve pierces the flexor-pronator aponeurosis, the fibrous common origin of the flexor and pronator muscles. The ligament of Spinner is an additional aponeurosis between the flexor digitorum superficialis of the ring finger and the humeral head of the flexor carpi ulnaris. This septum is independent of the other aponeuroses and attaches directly to the medial epicondyle and the medial surface of the coronoid process of the ulna. With anterior transposition of the ulnar nerve (...) process The tubercle of the coronoid process is 1.5 times larger in men Contreras et al suggested that the coronoid process may be a potential site for ulnar nerve compression in men and that the increased subcutaneous fat around the ulnar nerve in women may provide a protective advantage against acute ulnar neuropathy. [ ] Previous Next: Prognosis A favorable surgical outcome is more likely for sensory function than for motor function. Overall, however, a favorable outcome occurs in 85-95% of cases

2014 eMedicine Surgery

113. Elbow and Above-Elbow Amputations (Overview)

fossa (medially) allow the humerus to accept the head of the radius and the coronoid process of the ulna when the joint is in full flexion. On the central aspect of the posterior humerus above the trochlea of the humeral condyle is the olecranon fossa, which allows the humerus to accept the olecranon of the ulna when the joint is in extension. The olecranon is the proximal end of the ulna, from which the C-shaped trochlea notch is carved. For more information about the relevant anatomy, see (...) Elbow and Above-Elbow Amputations (Overview) Elbow and Above-Elbow Amputations: Background, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzNzg4Ni1vdmVydmlldw== processing > Elbow

2014 eMedicine Surgery

114. Floating Elbow (Overview)

of rotation of the trochlea. [ , ] A thin shell of bone separates the coronoid and olecranon fossae just proximal to the trochlea. The olecranon is the flared proximal portion of the ulna. It articulates with the trochlea at its semilunar notch. The ulnar contribution to the proximal radioulnar joint lies just lateral to the coronoid process, the radial notch. The proximal radius is composed of a concave disk-shaped radial head and a short narrow neck. The ulnohumeral articulation is characterized (...) Floating Elbow (Overview) Floating Elbow: Background, Anatomy, Etiology Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzMTEwMy1vdmVydmlldw== processing > Floating Elbow Updated: Jul 05, 2018 Author: William

2014 eMedicine Surgery

115. Congenital Syndromes

=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTI4MDAzNC1vdmVydmlldw== processing > Craniofacial Syndromes Updated: Jul 02, 2018 Author: Kongkrit Chaiyasate, MD, FACS; Chief Editor: Jorge I de la Torre, MD, FACS Share Email Print Feedback Close Sections Sections Craniofacial Syndromes Crouzon, Apert, Pfeiffer, Saethre-Chotzen, and Carpenter Syndromes Crouzon Syndrome Crouzon syndrome was first described in 1912. Inheritance Inheritance is autosomal dominant with virtually complete penetrance. It is caused by multiple mutations of the fibroblast growth factor (...) , especially the sphenoid and temporal bones. The mandibular deformity can range from (1) minimal hypoplasia to (2) a small ascending ramus and condyle with an absent glenoid fossa and, possibly an absent coronoid to (3) a minimal or absent ramus with severe vertical facial shortening. These deformities become worse with time. Flattening and hypoplasia of the zygomas and its arch (the latter may be absent) also may occur. The muscles of mastication (ie, masseter, medial and lateral pterygoids, temporalis

2014 eMedicine Surgery

116. Upper Limb Prosthetics (Follow-up)

fossa (medially) allow the humerus to accept the head of the radius and the coronoid process of the ulna when the joint is in full flexion. On the central aspect of the posterior humerus above the trochlea of the humeral condyle is the olecranon fossa, which allows the humerus to accept the olecranon of the ulna when the joint is in extension. The olecranon is the proximal end of the ulna, from which the C-shaped trochlea notch is carved. For more information about the relevant anatomy, see (...) Upper Limb Prosthetics (Follow-up) Elbow and Above-Elbow Amputations: Background, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzNzg4Ni1vdmVydmlldw== processing > Elbow and Above

2014 eMedicine.com

117. Upper Limb Orthotics (Follow-up)

fossa (medially) allow the humerus to accept the head of the radius and the coronoid process of the ulna when the joint is in full flexion. On the central aspect of the posterior humerus above the trochlea of the humeral condyle is the olecranon fossa, which allows the humerus to accept the olecranon of the ulna when the joint is in extension. The olecranon is the proximal end of the ulna, from which the C-shaped trochlea notch is carved. For more information about the relevant anatomy, see (...) Upper Limb Orthotics (Follow-up) Elbow and Above-Elbow Amputations: Background, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTIzNzg4Ni1vdmVydmlldw== processing > Elbow and Above

2014 eMedicine.com

118. Nerve Block, Oral

Nerve Block, Oral Oral Nerve Block: Overview, Indications, Contraindications Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODI4NTAtb3ZlcnZpZXc= processing > Oral Nerve Block Updated: Jan 17, 2019 Author: Michael (...) for each block; illustrations depict the area to be anesthetized and the position of the needle in relation to the anatomy. Next: Indications See the list below: Toothache, pulpitis, or root impaction Orofacial laceration repair (eg, , , mucosal) Postextraction pain, including dry socket and fractures Previous Next: Contraindications See the list below: Hypersensitivity or allergy to local anesthetic agents Distortion of landmarks needed to perform the nerve block Patient who are uncooperative because

2014 eMedicine.com

119. Joint Reduction, Elbow Dislocation, Posterior

of the coronoid process in elbow fracture-dislocations. J Bone Joint Surg Am . 2011 Oct 19. 93 (20):1873-81. . Mehta JA, Bain GI. Elbow dislocations in adults and children. Clin Sports Med . 2004 Oct. 23 (4):609-27, ix. . Martin BD, Johansen JA, Edwards SG. Complications related to simple dislocations of the elbow. Hand Clin . 2008 Feb. 24 (1):9-25. . Sotereanos DG, Darlis NA, Wright TW, Goitz RJ, King GJ. Unstable fracture-dislocations of the elbow. Instr Course Lect . 2007. 56:369-76. . Forthman C, Henket M (...) > Reduction of Posterior Elbow Dislocation Updated: Oct 12, 2018 Author: Nina Chicharoen, MD, MPH; Chief Editor: Erik D Schraga, MD Share Email Print Feedback Close Sections Sections Reduction of Posterior Elbow Dislocation Overview Background In adults, the elbow is the second most frequently dislocated major joint, after the shoulder. It is the most commonly dislocated joint in children. [ ] More than 90% of all are posterior dislocations. [ ] This injury entails disengagement of the coronoid process

2014 eMedicine.com

120. Joint Reduction, Radial Head Dislocation

Incidence Description Type I 60% Fracture of the proximal or middle third of the ulna with anterior angulation and anterior dislocation of the radial head Type II 15% Fracture of the proximal or middle third of the ulna with posterior angulation and posterior dislocation of the radial head Type III 20% Fracture of the ulnar metaphysis distal to the coronoid process with lateral dislocation of the radial head Type IV 5% Fracture of the proximal or middle third of the ulna and fracture of the proximal (...) with posterior angulation and posterior dislocation of the radial head Type III 20% Fracture of the ulnar metaphysis distal to the coronoid process with lateral dislocation of the radial head Type IV 5% Fracture of the proximal or middle third of the ulna and fracture of the proximal third of the radius with anterior dislocation of the radial head Contributor Information and Disclosures Author Gretchen S Lent, MD Attending Physician, Department of Emergency Medicine, Torrance Memorial Medical Center

2014 eMedicine.com

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