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Year : 2009  |  Volume : 3  |  Issue : 2  |  Page : 34-36    Table of Contents


Acutely calcified hematoma mimicking a displaced medial epicondyle fracture

Department of Trauma and Orthopaedic Surgery, Royal Free Hospital, London, United Kingdom

Correspondence Address:
Addie Majed
Flat 4 Clyda Mansions, Gondar Gardens, London, NW6 1EU
United Kingdom
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0973-6042.57933

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Date of Web Publication1-Dec-2009


We present an interesting and unusual case of an acutely calcified pin-site infection hematoma mimicking a displaced cartilaginous medial epicondyle, in a child with a Gartland type III fracture.
The treatment of such pathology could be confusing and may interfere with the correct clinical decision-making process. To our knowledge, this is the first presentation of such a case.

Keywords: Supracondylar fracture, pin-track infection, calcified hematoma

How to cite this article:
Majed A, Thomas J, Ahrens P. Acutely calcified hematoma mimicking a displaced medial epicondyle fracture. Int J Shoulder Surg 2009;3:34-6

How to cite this URL:
Majed A, Thomas J, Ahrens P. Acutely calcified hematoma mimicking a displaced medial epicondyle fracture. Int J Shoulder Surg [serial online] 2009 [cited 2019 Jul 21];3:34-6. Available from:

   Introduction Top

Displaced supracondylar fractures of the humerus account for the second most common limb fractures in children and are associated with complications and poor results. [1] As a consequence, these injuries represent a management challenge and are best treated by accurate reduction. [2] Whilst Kirschner wires are versatile in fracture fixation within the pediatric group, complication rates are under-reported. [3]

We report a case of a calcified hematoma mimicking a displaced medial humeral epicondyle following a supracondylar fracture. The condition has not been previously documented in the medical literature.

   Case Report Top

A 6-year-old boy, with no medical problems, presented to our Accident and Emergency Department following a fall onto his non-dominant outstretched left hand. Examination revealed a swollen painful elbow, with no skin lacerations and without distal neurovascular deficit. Radiographic evaluation confirmed a Gartland grade III supracondylar fracture of the left distal humerus with no other significant radiological findings.

The following morning, the patient underwent manipulation under anesthesia and stabilization of the fracture with two 1.6-mm Kirschner wires, positioned in a crossed fashion. There were no immediate postoperative complications, and the patient was discharged home 24 hours later in a split cast and sling immobilization.

No complications were documented at routine follow-up 3 and 10 days postoperatively, and radiographs confirmed adequate fracture reduction and stabilization [Figure 1].

Twenty-five days postoperatively, the patient presented to the Accident and Emergency Department with increased discomfort at the elbow. Examination revealed cellulitis surrounding, and a purulent discharge from, the medial pin site. As the medial Kirschner wire was loose and as there was clinical infection, the wire was removed. A microbiology swab was sent for culture and sensitivity, which later grew Staphylococcus aureus. The wound was cleaned and the patient was treated with intravenous third-generation cephalosporin antibiotics. At this time, radiographs demonstrated an apparent displacement of the medial epicondyle, which was enlarged, well circumscribed with a cortical outline and trabeculation [Figure 2]a and b. It was believed to represent calcification around the cartilaginous epicondyle secondary to displacement, hematoma and infection. A decision was made to treat any infection first, before considering re-operating. After 48 hours of intravenous antibiotics, the patient was discharged home on oral antibiotics. Review in the following week showed clinical resolution of the infection, a pain-free elbow and a good range of motion with no medial joint laxity. The decision was made to continue nonoperative management.

Fifty-two days postoperatively, the patient was reviewed again in the outpatient department. Radiographs taken did not show a displaced medial epicondyle or nonunion and demonstrated normal soft tissue shadow and satisfactory alignment of the distal humerus [Figure 3]a and b. In fact, the medial epicondyle now revealed its ossification center and confirmed its normal anatomical position. The patient was clinically asymptomatic, he had a normal carrying angle and he regained full range of movement at the elbow.

In retrospect, a diagnosis of an acutely calcified hematoma with associated infection was made. Treating this patient's complication nonoperatively avoided an unnecessary surgical procedure and exposure to possible risks associated with it.

   Discussion Top

Hematomas are typically fluid filled and subsequently develop a disconcertingly wide range of appearances depending on the degree of liquefaction and organization. Hematomas may be fluid filled, multiloculated or heterogeneous with solid and cystic elements. In this case, one must consider the rate of Kirschner wire-related complications, which include hematoma formation and infection. For example, in a series of 403 cases, Cheng et al. had 2 cases of superficial pin-tract infection, [5] whilst Botte et al. demonstrated a 7% rate of pin-tract infection. [6] Green described the factors associated with pin-tract infection, stressing motion at the pin-bone interface, necrotic bone or soft tissue around the pin and soft tissue tension where the pin exits the skin. [7]

Rajapakse et al. illustrated the difficulty of making the relatively rare diagnosis of a calcifying hematoma in the limbs by radiological means, and we have found that little has been written on calcifying hematoma. [8] These lesions can clinically and radiologically mimic aggressive soft tissue neoplasms, as outlined by Mentzel et al. in a series of 4 cases of calcified hematoma in the tensor fascia lata and perifascial tissue. [9] Additionally, myositis ossificans can also mimic these lesions.

To our knowledge, this is the first case of a calcified hematoma mimicking a displaced fracture fragment. Awareness of the possibility of this rare pathology and its radiological features may allow accurate diagnosis and prevent unnecessary surgery in an already challenging clinical situation.

   References Top

1.Kurer M, Regan M. Completely displaced supracondylar fracture of the humerus in children. Clin Ortho And Res 1990;256:205-14.  Back to cited text no. 1      
2.Kumar R, Kiran EK, Malhotra R, Bhan S. Surgical management of the severely displaced supracondylar fracture of the humerus in children. Injury 2002;33:517-22.  Back to cited text no. 2  [PUBMED]  [FULLTEXT]  
3.Sharma H, Taylor GR, Clarke NM. A Review of k-wire related complications in the emergency management of paediatric upper extremity trauma. Ann R Coll Surg Engl 2007;89:252-8.  Back to cited text no. 3  [PUBMED]  [FULLTEXT]  
4.Niimi R, Matsumine A, Kusuzaki K, Okamura A, Matsubara T, Uchida A, et al. Soft-tissue sarcoma mimicking large haematoma: A report of two cases and review of the literature. J Orthop Surg 2006;14:90-5.  Back to cited text no. 4      
5.Cheng J, Lam T, Shen W. Closed reduction and percutaneous pinning for type III displaced supracondylar fractures of the humerus in children. J Orthop Trauma 1995;9: 511-5.  Back to cited text no. 5      
6.Botte MJ, Davis JL, Rose BA, von Schroeder HP, Gellman H, Zinberg EM, et al. Complications of smooth pin fixation of fractures and dislocations in the hand and wrist. Clin Orthop 1992;276:194-201.  Back to cited text no. 6  [PUBMED]  [FULLTEXT]  
7.Green S. Complication of pin and wire external fixation. Instr Course Lect 1990;39:219-28.  Back to cited text no. 7      
8.Rajapakse B, Kiddle G. Calcifying haematoma mimicking soft tissue sarcoma and myositis ossificans. ANZ J Surg 2006;76:1027-9.  Back to cited text no. 8      
9.Mentzel T, Goodlad JR, Smith MA, Fletcher CD. Ancient haematoma: A unifying concept for a post-traumatic lesion mimicking an aggressive soft tissue neoplasm. Mod. Pathol 1998; 11:799-800.  Back to cited text no. 9      


  [Figure 1], [Figure 2], [Figure 3]


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