|Year : 2017 | Volume
| Issue : 2 | Page : 134-138
Mini approach and percutaneous fixation of intra-articular calcaneous fractures
Taher A Eid, Ahmed Shams, Mohamed El-Sawy
Orthopedic Surgery Department, Faculty of Medicine, Menoufia University, Shebin El-Kom, Egypt
|Date of Submission||06-May-2014|
|Date of Acceptance||15-Jun-2017|
|Date of Web Publication||23-Nov-2017|
Taher A Eid
Assistant Professor Orthopedic Surgery Department Faculty of Medicine Menoufia University, Menoufia
Source of Support: None, Conflict of Interest: None
Introduction Intra-articular calcaneous fracture is one of the most aggravating fractures if not properly managed. Open reduction and internal fixation are associated with high incidence of postoperative soft-tissue complication. Closed reduction and percutaneous fixation had a high incidence of postoperative subtalar osteoarthritis due to an improper reduction of the articular surface, and therefore the mini approach was used for restoring the articular surface and for fixing the fracture by K-wires.
Patients and methods A total of 22 patients with 27 intra-articular calcaneous fractures from March 2009 to July 2012 were treated at Menoufia University Hospital. All patients were treated with the miniapproach and percutaneous K-wire fixation for intra-articular calcaneous fractures. The patient sample included 15 males and seven females. In 14 patients, the fractures were caused by falling from heights, whereas in eight patients the cause was road traffic accidents. Five patients had bilateral fractures. According to Sander’s Classification, 13 fractures were of type II, 10 were type III, and four were type VI.
Results The average age was 29 years with a range of 21–55 years. The mean follow-up period was 16 months with a range of 12–36 months. The average union period of fractures was 12 weeks, ranging from 10 to 16 weeks. Seven patients had wedge fracture of the dorsolumbar spine but without neurological manifestation. The average operative time was 53 min with a range of 37–109 min. The clinical results according to the Maryland foot score revealed 21 (78%) cases with satisfactory scores (eight excellent and 13 good) and six cases (22%) with unsatisfactory results (four moderate and two poor).
Conclusion Percutaneous treatment of fracture calcaneous minimizes soft-tissue complications and postoperative scar formation, which improves functional outcome. The miniapproach for elevation of depressed posterior facet restores joint congruity and decreases late subtalar arthritis.
Keywords: Calcaneal fracture, miniapproach, percutaneous fixation
|How to cite this article:|
Eid TA, Shams A, El-Sawy M. Mini approach and percutaneous fixation of intra-articular calcaneous fractures. Egypt Orthop J 2017;52:134-8
|How to cite this URL:|
Eid TA, Shams A, El-Sawy M. Mini approach and percutaneous fixation of intra-articular calcaneous fractures. Egypt Orthop J [serial online] 2017 [cited 2017 Dec 10];52:134-8. Available from: http://www.eoj.eg.net/text.asp?2017/52/2/134/219097
| Introduction|| |
The incidence of calcaneal fractures has been presumed to be around 2% of all fractures presenting to emergency departments, and the proportion of intra-articular calcaneal fractures represent about 75% of all calcaneal fractures ,.
Although there are different types of treatment, either operative or conservative treatment, intra-articular fractures carry a high morbidity incidence ,.
Open reduction is associated with high incidence of secondary damage to soft tissues after extensive surgical procedures. The reported rates of wound edge necrosis vary between 2 and 11% and those of soft tissue infections vary between 1.3 and 7% after plate fixation via an extended lateral approach. To avoid soft-tissue complications, several less-invasive procedures have been introduced ,.
Westhues  was the first surgeon who introduced the method of closed reduction with percutaneous pinning fixation and subsequent plaster immobilization. This technique was later modified and popularized by Gissane and Essex-Lopresti. More recently, this method has been advocated for tongue-type fractures with the posterior calcaneal facet to the subtalar joint being displaced as a whole ,.
| Patients and methods|| |
Twenty-two patients with 27 intra-articular calcaneous fractures from March 2009 to July 2012 were treated at Menoufia University Hospital. All patients were treated with the miniapproach and percutaneous Kirschner wire (K-wire) fixation of intra-articular calcaneous fractures. Fifteen patients were males, and seven patients were females. In 14 patients, the cause was falling from heights, whereas in eight patients the cause was road traffic accident. Five patients had bilateral fractures. Preoperative clinical evaluation was carried out to detect soft-tissue damage and the presence of associated injuries. Radiological assessment by anteroposterior, lateral, and axial radiograph of the ankle for preoperative diagnosis was carried out, as well as assessment of the Bohler’s and the crucial angle of Gissane. Preoperative computed tomography was performed for all patients for classification and surgical planning. According to Sander’s classification , 13 fractures were type II, 10 were type III, and four were type VI. Surgery was performed within the first week after the injury.
Spinal anesthesia was preferred for good postoperative pain control. The lateral decubitus position was used with the patient lying on the unaffected side with the knee flexed to the injured side, supported by a pillow to facilitate manipulation and c-arm monitoring. In bilateral cases, one side was operated first and then the position was changed.
With the use of a pneumatic tourniquet, the foot, ankle, and leg were sterilized till the knee level. One gram of third-generation cephalosporin was administered just before tourniquet inflation.
A 1–2-cm-long transverse incision was used just below the level of the tip of the lateral malleolus and guided by the image intensifier. A small, tipped, periosteal elevator was introduced through the incision and then through the lateral wall of the os calsis till the inner cortex of the medial wall. Disimpaction and reduction of the body fragment were performed under fluoroscopic control. With the use of the periosteal elevator, the depressed posterior thalamic fragment was reduced under its talar location.
A 5-mm K-wire was passed under the posterior facet till the angle of Gissane perpendicular to the fracture site. By plantarly flexing the ankle and bending the K-wire with the use of the power drill, the fragment can be reduced. Broadening was reduced by using the Omoto  technique to achieve compression, using the bimanual grip through the lateral and medial surfaces. Supplementary compression can be achieved by using a soft-tissue self-spinal retractor.
Fixation can be maintained by using a two-threaded 2-mm K-wire passing from the posteroinferior calcaneal surface of the posterior facet till the talus. The bended K-wire was then removed. Another two-threaded 2-mm K-wire can be used, with the first one in the calcaneocuboid direction and the second one in calcaneonavicular direction. Concomitant lateral wall and sustantacular fractures were fixed by separate K-wires.
Postoperative elevation of the injured side over a pillow was carried out to decrease postoperative edema. Parenteral antibiotics were administered for 2 days followed by oral antibiotics for 10 days and antiedematous drugs. Patients were followed up at 2, 4, and 6 weeks and then every month. The stitches were removed on the second postoperative week. Cast below the knee was applied for 1 month. The K-wire was removed on the sixth postoperative week. Inversion and eversion exercises were encouraged with no weight bearing till the third postoperative month. Radiographs were taken before K-wire removal and before weight bearing [Figure 1],[Figure 2],[Figure 3],[Figure 4].
| Results|| |
The average age of our patients was 29 years with a range of 21–55 years. The mean follow-up period was 16 months with a range of 12–36 months. The average union period of fracture was 12 weeks with a range of 10–16 weeks. Seven patients had a wedge fracture of the dorsolumbar spine but without neurological manifestation. The average operative time was 53 min with a range of 47–109 min. The clinical results according to the Maryland foot score revealed 21 (78%) cases with satisfactory results (eight excellent and 13 good) and six (22%) cases with unsatisfactory results (four moderate and two poor). Three patients had superficial pin-tract infections around the K-wires that resolved completely after removal and with antibiotics ([Figure 5] and [Figure 6]).
| Discussion|| |
Increased incidence of wound complications after extensile open approach of treatment for calcaneal fractures was the main cause for developing the percutaneous fixation as an alternative method of treatment ,,.
There were no wound complications and no soft-tissue problems in this study, and only three patients had superficial pin-tract infections. Percutaneous fixation using small stab incisions of 1–2 cm reduces the risk of postoperative complications regarding wound healing and the amount of scar formation leading to postoperative stiffness of the subtalar joint that regularly occurs after open reduction and lateral plate fixation despite careful preparation and anatomical reduction ,.
Tornetta  reported good to excellent results in 85% of his patients with the Maryland foot score. Reviewing his study revealed that 37 (87%) of his patients had Type II and only five (13%) had Type III fractures, but in our study 13 (48%) were type II, 10 (37%) were type III, and four (15%) were type VI according to Sander’s Classification.
Anatomic reduction of the calcaneal articular surface of the subtalar joint cannot be achieved with percutaneous methods alone in the majority of calcaneal fractures due to the deep impaction of the posterior facet fragment into the calcaneal body and multiple fragmentation; therefore, mini-incision was used to reduce the risk of inadequate reduction of the posterior facet, which led to inferior functional scores and a higher rate of post-traumatic subtalar arthritis ,,.
| Conclusion|| |
Percutaneous treatment of fracture calcaneous minimizes soft-tissue complications and postoperative scar formation, which improves functional outcome. Miniapproach for elevation of depressed posterior facet restores joint congruity and decreases late subtalar arthritis.
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Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4], [Figure 5], [Figure 6]