Summary Midshaft Clavicle fractures are common traumatic injuries caused by a direct impact to the shoulder girdle and is most commonly seen in young, active adults. Diagnosis can be made radiographically with AP and cephalic tilt clavicle x-rays. Treatment is nonoperative or operative based on patient activity and demands, along with degree of displacement, shortening, and comminution. Epidemiology Incidence common incidence 1 in 1000 people per year prevalence clavicle fractures account for 2.6-4% of all adult fractures Demographics often seen in young, active patients most common in males < 30 years old Location 75-80% of all clavicle fractures will occur in the middle third segment Etiology Pathophysiology mechanism of injury fall onto lateral aspect of shoulder (85%) direct impact to clavicle pathoanatomy junction of the outer and middle third is the thinnest part of the bone prone to fracture with axial loading only area not protected by or reinforced with muscle and ligamentous attachments displaced fractures medial fragment pulled posterosuperiorly by sternocleidomastoid muscle lateral fragment pulled inferomedially by pectoralis major and and weight of arm open fractures usually result from medial fragment "buttonholing" through platysma Associated conditions medical pneumothorax closed head injury orthopedic ipsilateral scapular fracture (floating shoulder) scapulothoracic dissociation traction injury significantly distracted/widened fracture fragments widened interval between scapula and spine brachial plexus or vascular injury rib fracture neurovascular injury ANATOMY Osteology Shape S-shaped bone flat laterally, tubular centrally, and prismatic medially Articulations sternoclavicular joint four primary stabilizers posterior capsular ligament anterior sternoclavicular ligament costoclavicular ligament intra-articular disc acromioclavicular joint two primary stabilizers coracoclavicular ligament acromioclavicular ligament Ligaments coracoclavicular (CC) ligaments provide superior/inferior stability to AC joint two components trapezoid (lateral) inserts 3 cm medial to distal clavicle conoid (medial) inserts 4.5 cm medial to distal clavicle Muscles sternocleidomastoid pulls medial segment proximally clavicular head originates superiorly on medial third inserts on mastoid process deltoid stabilizes distal clavicle and assists with shoulder abduction shortening of clavicle decreases lever arm of deltoid originates from anterior lateral third clavicle, acromion, and scapular spine inserts on deltoid tuberosity trapezius originates from occiput and C-T spine spinous process inserts on lateral posterosuperior third of clavicle, acromion, and scapular spine pectoralis major pulls medially causing shortening clavicular head originates from anteroinferior surface of medial half of clavicle inserts on crest of greater tubercle of humerus, lateral to bicipital groove subclavius protects NV structures which pass deep to muscle and displace clavicle inferiorly originates from 1st rib and costal cartilage inserts on undersurface of clavicle sternohyoid originates on sternal end of clavicle inserts on hyoid bone platysma violated with skin tenting originates from pectoral fascia inserts mandible Neurovascular structures supraclavicular nerves cutaneous nerves that run vertically over clavicle and supply superior chest wall subclavian vessel passes posterior and underneath clavicle near junction of medial and middle third subclavian vein closest to clavicle and anterior to artery and plexus brachial plexus Biomechanics middle third is weakest portion of clavicle thinnest and narrowest transitional of the bone in both curvature and in cross-sectional anatomy only area not supported by ligamentous or muscular attachments Classification Neer Classification (simple) Nondisplaced < 100% displacement Nonoperative Displaced > 100% displacement Operative AO classification Type A = Simple A1 = spiral A2 = oblique A3 = transverse Nonoperative vs. operative Type B = Wedge B1 = spiral wedge B2 = bending wedge B3 = fragmented wedge Nonoperative vs. operative Type C = Complex C1 = complex spiral C2 = segmental C3 = irregular Operative Presentation History popping or cracking sound near shoulder after fall Symptoms acute onset of anterior shoulder pain or directly over clavicle Physical exam inspection tender, swelling, crepitus and deformity over clavicle skin tenting (impending open fracture) neurovascular exam assess subclavian vessels and brachial plexus Imaging Radiographs recommended views clavicle series upright AP clavicle supine may underappeciate displacement with gravity eliminated 15° cephalic tilt (zanca view) eliminates overlapping scapula shoulder series evaluate for other injuries (ie proximal humerus, scapula) optional views upright chest x-ray compare shortening with contralateral side evaluate for pneumothorax findings superior displacement of medial fragment inferior displacement of lateral fragment shortening measurements shortening two methods AP clavicle - distance between the corresponding ends of the medial and lateral fragments AP chest - direct comparison of length of clavicle to the contralateral side shortening >2cm associated with decrease shoulder strength and endurance displacement displacement relative to width of clavicle (percent) >100% displacement is a risk factor for nonunion CT indications assess fracture pattern for preop planning comminution, shortening, articular extension, nonunion vascular injury medial clavicle fracture SC joint dislocation views axial, coronal and 3D reconstruction most useful with contrast if concern for vascular injury Differential Adult distal third clavicle fx older, osteoporotic patient x-ray may show increased CC distance Sternoclavicular dislocation high energy mechanism may present with dysphagia, stridor, asymmetric pulses, paresthesias due to compression of surrounding structures serendipity view or CT best demonstrate displacement Acromioclavicular Joint Injury pain and prominence more lateral over AC joint zanca or axillary views shows displaced distal clavicle relative to acromion Treatment Nonoperative indications < 2cm shortening and displacement < 1cm displacement of the superior shoulder suspensory complex closed and no neurovascular injury low demand patient modalities sling figure-of-8 strap elevate and extend shoulder to bring distal fragment to the proximal fragment outcomes figure-of-8 associated with more pain, shortening, and lower compliance than sling no difference in functional or cosmetic outcomes between sling and figure-of-eight braces Operative indications absolute open fractures displaced fracture with skin tenting subclavian artery or vein injury floating shoulder (clavicle and scapular neck fracture) relative and controversial indications displaced with > 2cm shortening bilateral displaced clavicle fractures brachial plexus injury (questionable because 66% have spontaneous return) closed head injury seizure disorder polytrauma patient techniques intramedullary fixation open reduction internal fixation with plate and screws outcomes operative fixation has higher union rate (>94%) similar or better functional outcomes than nonoperative faster time to union - operative (16.4 weeks) vs. non-operative (28.4 weeks) Techniques Sling Immobilization technique immobilize using sling or figure-of-eight brace no attempt at reduction should be made rehab gentle passive ROM exercises at 2 weeks strengthening exercises begin at 6 weeks return to sports at 4-6 months advantage overall good outcomes avoid surgical/hardware complications disadvantage higher nonunion rate compared to operative management slower time to union complications nonunion (10-15%) malunion poor cosmesis decreased shoulder strength and endurance displaced midshaft clavicle fractures healed with > 2cm of shortening Open Reduction Internal Fixation with Plate approach beach chair vs. supine direct superior vs. anterior incision technique plate configuration anterior plating superior plating (compared to anterior plating) higher load to failure increased plate strength with inferior bone comminution increased risk of neuromuscular injury decreased removal of deltoid attachment dual plating low rate of symptomatic hardware removal (0-3.7%) biomechanically equivalent or superior to single 3.5mm plate plate options limited contact, pre-controured, 3.5mm dynamic compression plate 3.5mm reconstruction plate 2.0mm, 2.4mm and 2.7mm plates can be used and combined for dual plating advantages improved results with ORIF for clavicle fractures with > 2cm shortening and > 100% displacement improved functional outcomes/less pain with overhead activity faster time to union decreased symptomatic nonunion and malunion rate improved cosmetic satisfaction improved overall shoulder satisfaction increased shoulder strength and endurance disadvantage increased risk of need for future procedures implant removal debridement for infection complications hardware irritation infection neurovascular injury supraclavicular nerve injury hardware failure pneumothorax postoperative Rehabilitation early sling for 7-10 days followed by active motion late strengthening at ~6 weeks when pain-free motion and radiographic evidence of union full activity including sports at ~3 months Intramedullary Fixation technique positioning beach chair or supine approach percutaneous or mini-open implant choices intramedullary nail goal size of intramedullary nail is 30-40% of midshaft diameter cannulated screws titanium elastic nail Hagle pin advantages smaller incision less soft-tissue disruption avoids supraclavicular nerves that are commonly injured with plating best for simple patterns disadvantages higher complication rate hardware migration, implant irritation, secondary procedures biomechanically inferior to plating unable to lock and control rotation typically requires hardware removal at 6 months contraindications substantial comminution segmental fractures complications hardware migration loss of reduction Complications Nonoperative treatment nonunion (~15%) risk factors fracture comminution (Z deformity) fracture displacement female gender advanced age smoker predictors at 6 week motion at fracture site, no callus on x-ray, DASH <40 0 - 3% nonunion 2 or 3 - 60% nonunion treatment if asymptomatic, no treatment necessary if symptomatic, ORIF with plate and bone graft (particularly atrophic nonunion) malunion (~20%) definition shortening > 3cm angulation > 30° translation > 1cm presentation pain and increased fatigue with overhead activities thoracic outlet syndrome dissatisfaction with appearance difficulty with shoulder straps and backpacks treatment clavicle osteotomy with bone grafting, if symptomatic Operative treatment hardware prominence 8-30% of patient request plate removal superior plates associated with increased irritation neurovascular injury superior plates associated with increased risk of subclavian artery or vein penetration subclavian thrombosis supraclavicular nerve injury most common complication 83% incidence of numbness noted at 2 weeks postop can improve over time with ~50% having persistent numbness at 1 year nonunion (1-5%) infection (~4.8%) risk factors illicit drug use diabetes previous shoulder surgery mechanical failure (~1.4%) pneumothorax adhesive capsulitis 4% in surgical group develop adhesive capsulitis requiring surgical intervention
Technique Guide CPT Codes: 23515 Open treatment of clavicular fracture, includes internal fixation, when performed Technique guides are not considered high yield topics for orthopaedic standardized exams including ABOS, EBOT and RC. Clavicle Shaft Fracture ORIF Orthobullets Team Trauma - Clavicle Fractures - Midshaft
QUESTIONS 1 of 23 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Previous Next (SBQ18TR.1) A 28-year-old male sustains the injury seen in Figure A. After discussing the risks and benefits of surgery, he elects to pursue nonoperative treatment. Of the following possible complications from nonoperative treatment, which is the most likely? QID: 211111 FIGURES: A Type & Select Correct Answer 1 Skin necrosis 2% (28/1715) 2 Nonunion 91% (1554/1715) 3 Complex regional pain syndrome (CRPS) 1% (21/1715) 4 Sternoclavicular joint arthritis 1% (11/1715) 5 Acromioclavicular joint arthrosis 5% (86/1715) L 2 Question Complexity A Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (SBQ12TR.3.1) A 32-year-old female sustained a closed clavicle fracture after a fall as shown in Figures A and B. After a long discussion of the risks and benefits the patient elects to undergo nonoperative management. When discussing nonunion, which of the following is the best estimate for risk of nonunion with nonoperative treatment? QID: 214312 FIGURES: A B Type & Select Correct Answer 1 1% 1% (25/1811) 2 5% 17% (312/1811) 3 15% 50% (914/1811) 4 30% 20% (360/1811) 5 50% 11% (192/1811) L 4 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 3 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (SBQ12TR.23) A 25-year-old patient is involved in a motor vehicle accident. An isolated orthopaedic injury is sustained to the upper extremity with no compromise of skin integrity or neurovascular function. A radiograph of the injury is shown in Figure A. The patient is interested in pursuing surgical intervention. What is a reported outcome of surgery when compared to nonoperative management at 1 year postoperatively? QID: 3938 FIGURES: A Type & Select Correct Answer 1 Increased rates of symptomatic nonunion 3% (152/4982) 2 Similar rates of symptomatic nonunion 8% (397/4982) 3 No differences in cosmetic results 2% (114/4982) 4 Increased functional outcome scores 79% (3958/4982) 5 Improved range of motion of the shoulder 7% (335/4982) L 2 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 4 Review Tested Concept Review Full Topic (SBQ12TR.3) A 22-year-old left hand dominant laborer sustains the injury shown in Figures A and B as the result of a fall from a ladder. Which of the following has been shown to be true regarding operative versus nonoperative treatment of this injury? QID: 3918 FIGURES: A B Type & Select Correct Answer 1 Decreased chance of nonunion with nonoperative treatment 4% (254/6198) 2 Improved Constant and DASH scores with operative treatment at all time points 68% (4240/6198) 3 Increased symptomatic malunion rate with operative treatment 1% (90/6198) 4 No change in shoulder abduction strength 19% (1154/6198) 5 Increased time to union with operative treatment 7% (436/6198) L 1 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (OBQ11.118) A 35-year-old right hand dominant man falls from a ladder and sustains the injury seen in Figure A. When discussing the risks and benefits of operative versus nonoperative treatment for his fracture, which of the following is true? QID: 3541 FIGURES: A Type & Select Correct Answer 1 No difference in shoulder function 8% (425/5240) 2 Higher risk of nonunion with operative management 2% (84/5240) 3 Higher risk of symptomatic malunion or nonunion with nonoperative management 82% (4310/5240) 4 Earlier return to sport with nonoperative management 0% (26/5240) 5 No difference in union rates 7% (375/5240) L 1 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 3 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (OBQ10.101) A 32-year-old female sustains an isolated midshaft clavicle fracture, as shown in Figure A. Her clinical exam does not reveal skin tenting or neurovascular injury, but shortening is measured at 2.6 cm. Which of the following treatment methods has been shown to have the lowest rate of nonunion and symptomatic malunion? QID: 3195 FIGURES: A Type & Select Correct Answer 1 Open reduction and internal fixation with plating 91% (1890/2074) 2 Open reduction and percutaneous pinning 1% (20/2074) 3 Closed reduction and percutaneous pinning 1% (19/2074) 4 Closed reduction and external fixation 0% (1/2074) 5 Nonoperative treatment with a sling and early range of motion 6% (134/2074) L 1 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 1 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (SBQ08UE.37.1) A 62-year-old woman falls off a bike and sustains the injury shown in Figure A. She presents to clinic for her 6-month follow-up appointment and reports persistent pain. Current imaging is shown in Figure B. Which of the following factors is not a risk factor to the development of this patient’s diagnosis? QID: 212889 FIGURES: A B Type & Select Correct Answer 1 Shortening of 3cm 2% (51/2098) 2 Comminution 4% (78/2098) 3 Sling immobilization as opposed to figure-of-eight brace 84% (1766/2098) 4 Female gender 7% (150/2098) 5 Advanced age 2% (44/2098) L 5 Question Complexity A Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 3 Review Tested Concept Review Full Topic Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK Sorry, this question is for PEAK Premium Subscribers only Upgrade to PEAK (OBQ08.219) A 22-year-old male sustains a right shoulder injury after being thrown from his motorcycle. After nine months of conservative treatment, he continues to complain of pain. A current radiograph is shown in Figure A. What is the most appropriate treatment? QID: 605 FIGURES: A Type & Select Correct Answer 1 Addition of a bone stimulator 0% (5/1257) 2 Figure of eight brace 1% (9/1257) 3 Closed reduction and percutaneous pinning 0% (2/1257) 4 Open reduction and intramedullary nailing 5% (69/1257) 5 Open reduction and compression plating 93% (1166/1257) L 2 Question Complexity C Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 5 Review Tested Concept Review Full Topic (OBQ08.168) A 20-year-old woman is involved in a high-speed motor vehicle collision and sustains bilateral tibial plateau fractures as well as the clavicle fracture shown in Figure A. What is the most appropriate management of the clavicular injury? QID: 554 FIGURES: A Type & Select Correct Answer 1 Closed reduction and figure of 8 splinting 1% (23/2719) 2 Open reduction and plate fixation 96% (2604/2719) 3 Open reduction and percutaneous pinning 0% (4/2719) 4 Simple sling to involved side 2% (67/2719) 5 Sling with abduction pillow to involved side 0% (7/2719) L 1 Question Complexity C Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic (OBQ08.54) Which of the following factors increase the risk of nonunion in midshaft clavicle fractures when treated nonoperatively? QID: 440 Type & Select Correct Answer 1 Sling immobilization 0% (11/2556) 2 Displacement and comminution 93% (2367/2556) 3 Age less than 40 years old 1% (14/2556) 4 Immediate motion exercises 5% (127/2556) 5 Male 1% (24/2556) L 2 Question Complexity A Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic (OBQ07.1) A 45-year-old male falls onto his left shoulder while biking and an injury radiograph is shown in Figure A. He elects for nonoperative treatment. What is the most likely clinical outcome at one year after injury? QID: 662 FIGURES: A Type & Select Correct Answer 1 Symmetric cosmesis of shoulders 6% (97/1648) 2 Decreased shoulder motion 6% (93/1648) 3 Symptomatic nonunion 16% (260/1648) 4 Shoulder instability 0% (4/1648) 5 Decreased shoulder strength and endurance 72% (1187/1648) L 2 Question Complexity C Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 5 Review Tested Concept Review Full Topic (OBQ07.275) Which of the following factors is associated with the highest rate of nonunion of a midshaft clavicle fracture? QID: 936 Type & Select Correct Answer 1 younger patients 7% (91/1316) 2 female gender 55% (724/1316) 3 simple fracture pattern 9% (116/1316) 4 sling immobilization 6% (81/1316) 5 early range-of-motion 22% (296/1316) L 4 Question Complexity B Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic (OBQ07.25) A 31-year-old male sustains the injury shown in Figure A. As compared to treatment with a simple sling, what is the primary advantage of treatment with a figure-of-eight brace? QID: 686 FIGURES: A Type & Select Correct Answer 1 Decreased sleep disturbance 2% (25/1335) 2 Decreased personal care and hygiene impairment 3% (35/1335) 3 Decreased rates of malunion 3% (38/1335) 4 Improved long-term clinical outcomes 1% (8/1335) 5 No advantage, equivalent result between a simple sling and figure-of-eight brace 92% (1223/1335) L 2 Question Complexity D Question Importance Select Answer to see Preferred Response SUBMIT RESPONSE 5 Review Tested Concept Review Full Topic
All Videos (14) Podcasts (2) Login to View Community Videos Login to View Community Videos Orthopaedic Summit Evolving Techniques 2020 Midshaft Clavicle Fractures: When To Operate Or Treat Non-op - John D. Adams, MD John D. Adams Trauma - Clavicle Fractures - Midshaft B 1/27/2022 451 views 0.0 (0) Middle Atlantic Shoulder & Elbow Society Annual Meeting 2021 Panel: "There is a fracture, I must fix it" - Clavicle, AC, SC Joint Injuries; Let's Goooo! - Moderated by Brad Parsons, MD Brad Parsons Trauma - Clavicle Fractures - Midshaft A 10/8/2021 1082 views 2.5 (2) Displaced midshaft clavicle fracture - ORIF vs nonop - Debate Trauma - Clavicle Fractures - Midshaft A 3/28/2021 1757 views 4.0 (2) Trauma | Midshaft Clavicle Fractures Trauma - Clavicle Fractures - Midshaft Listen Now 32:17 min 10/16/2019 1351 plays 4.5 (8) Question Session⎪Clavicle Shaft Fractures, Peroneal Tendon Subluxation & Dislocation Orthobullets Team Trauma - Clavicle Fractures - Midshaft Listen Now 23:5 min 11/7/2019 137 plays 5.0 (1) See More See Less
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