|Year : 2015 | Volume
| Issue : 1 | Page : 11-15
Functional outcome of conservative and surgical management in mid-third clavicle fractures
Chandra Prakash Pal1, Rajendra Kumar Shakunt1, Deepak Kumar1, Amrit Goyal1, Aditya Prakash Tyagi1, Trilok Chand Pippal2
1 Department of Orthopaedics, S.N. Medical College, Agra, Uttar Pradesh, India
2 Department of Anaesthesia, S.N. Medical College, Agra, Uttar Pradesh, India
|Date of Web Publication||13-Jun-2016|
Chandra Prakash Pal
Department of Orthopaedics, S.N. Medical College, Agra, Uttar Pradesh
Source of Support: None, Conflict of Interest: None
Purpose: Clavicle fracture traditionally treated conservatively. There is a growing trend to treat displaced mid-shaft clavicular fractures with primary open reduction and plate fixation; whether such treatment results in improved patient outcomes is debatable. The aim of this study was to compare union rates and functional outcomes for displaced mid-shaft clavicular fractures that were treated with either primary open reduction and plate fixation or nonoperative treatment. Material and Methods: In this prospective study, 32 patients between 18 and 60 years of age who had an acute displaced mid-shaft clavicular fracture were randomized to receive either primary open reduction and plate fixation (n = 12) or nonoperative treatment (n = 20). Functional assessment was conducted at 3 months, 6 months, and 1-year with the use of the constant scores. Union was evaluated clinically and radiographically. Complications were recorded and compared. Results: The rate of nonunion was significantly reduced after open reduction and plate fixation (none nonunion) as compared with nonoperative treatment (two nonunion). Constant scores were significantly better after open reduction and plate fixation than after nonoperative treatment; 93.7 versus 85.5. A major complication was found in 35% of patients in the conservative group while they were absent in operative group. Conclusions: Open reduction and plate fixation reduces the rate of nonunion after acute displaced mid-shaft clavicular fracture compared with nonoperative treatment and is associated with better functional outcomes. Open reduction and plate fixation using precontoured locking plate have low implant-related complications.
Keywords: Clavicle, complications, mid-shaft, plate fixation, precontoured
|How to cite this article:|
Pal CP, Shakunt RK, Kumar D, Goyal A, Tyagi AP, Pippal TC. Functional outcome of conservative and surgical management in mid-third clavicle fractures. J Orthop Traumatol Rehabil 2015;8:11-5
|How to cite this URL:|
Pal CP, Shakunt RK, Kumar D, Goyal A, Tyagi AP, Pippal TC. Functional outcome of conservative and surgical management in mid-third clavicle fractures. J Orthop Traumatol Rehabil [serial online] 2015 [cited 2017 Aug 19];8:11-5. Available from: http://www.jotr.in/text.asp?2015/8/1/11/183957
| Introduction|| |
A clavicle fracture is a common traumatic injury around shoulder girdle due to their subcutaneous position. Most patients with a clavicle fracture are particularly young adults and have a history of a fall directly onto the shoulder. Fractures of the clavicle account for 2.5-5% of all fractures., Among the upper extremity, fractures of the clavicle comprise up to 15% of all adult upper extremity fractures. These fractures involve the middle third in 69-82% of the cases and are more common in children and young adults., Fractures of the clavicle have been traditionally treated nonoperatively. Moreover, open reduction and internal fixation (ORIF) of mid-clavicle fractures was considered the surest way to develop a nonunion. Although many methods of closed reduction have been described, it is recognized that reduction is practically impossible to maintain and a certain amount of deformity and disability is expected in adults.
Nonsurgical treatment was considered adequate to decrease pain and allow the fracture to unite. The radiographic union is expected by 12 weeks. In recent past few years, several publications have described about poor outcomes such as malunion and nonunion (15%) after conservative treatment of severely displaced clavicle fractures.,
Early studies of outcome following clavicle injuries did not describe any strength deficits following the nonoperative care of displaced mid-shaft fractures and tended to concentrate on radiographic and surgeon-based results. However, few recent studies used a patient-oriented outcome measure and concerned for patient satisfaction. Some found significant residual strength deficits following the conservative treatment of these fractures. Moreover, time to unite the fracture in the conservative group was found much prolonged than early studies. Most of the recent studies validate operative treatment over nonoperative in case of displaced fractures. The purpose of this study was to make a comparison of nonoperative management with fixation with precontoured locking plate among displaced, middle third clavicle fractures.
| Materials and Methods|| |
This prospective study was conducted in the department of orthopaedics, S.N. Medical College (SNMC), Agra. Patients were selected from patients attending outpatient department and Emergency department of orthopaedics. Total 32 cases of displaced mid-shaft fractures of clavicle were included in this study including both male and female, during January 2012-June 2013. Twelve cases were operated with internal fixation with a precontoured locking plate, and 20 patients were followed with conservative treatment.
Criteria for selection of cases
Patients aged 18-60 years with fresh displaced clavicle fractures of middle third (Robinson Classification Type 2B1 and 2B2) presenting to emergency/OPD of SNMC, Agra, were included in this study.
For operative group
Surgery was undertaken in general anesthesia. Precontoured locking plates were used in all cases.
With the patient in supine, about 7-9 cm, an incision was made in the anterior aspect over clavicle centering on the fracture site. The skin, subcutaneous tissue, platysma were divided and overlying fascia, and periosteum were next divided. The osseous ends were freed from surrounding tissue. Fracture fragments were reduced, and the plate was fixed to the medial and lateral fragment with 3.5 mm cortical screw and at least three screws in medial and lateral fragment were applied. The wound was closed in layers.
Stitches were removed in 12-15 days after surgery. Shoulder joint movements (pendulum range of motion exercises) were started as soon as pain allowed usually after 3-4 days, with limb, supported in arm sling. Passive motion exercises were initiated within 6 weeks [Figure 1] and [Figure 2].
Technique of conservative management
After reduction figure of eight bandage was applied and limb was supported by a triangular sling under the elbow and forearm.
Treatment is maintained for 6 weeks. All patients were counseled that there will likely be some deformity to the shoulder girdle, but that function will typically be normal. Shoulder joint movements (pendulum range of motion exercises) were started afterward. Heavy tasks were forbidden; contact sports were restricted for 3 months after injury. Heavy laborers were allowed to return to light-duty of lifting 6 weeks after injury with a return to full duty by 12 weeks [Figure 3] and [Figure 4].
|Figure 4: Different functional position of patient treated conservatively|
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Criteria for functional results
Functional outcome was evaluated using the constant shoulder score, which is scored from 0 to 100, with a lower score representing a higher level of functional disability.
| Results and Observations|| |
The present study included 32 patients, which were randomized into two groups. The first group of twelve patients was treated by ORIF by precontoured clavicle locking plate and twenty patients of the second group were treated by conservative measures.
Duration of union
The fracture was considered to be united when clinically there was no tenderness, no appreciable inter-fragmentary movement, radiologically presence of bridging callus, and full unprotected function of the limb was possible [Table 1].
In this study, complications were classified in two groups, major complications and minor complications.
Major complication: Major complication was defined as complication requiring inpatient treatment and expected to cause in an additional morbidity of 2 months or more [Table 2].
The functional outcome was assessed by Constant and Murley  score [Table 3].
| Discussion|| |
Clavicle fractures are usually treated conservatively. In a study conducted to analyze the results of conservative treatment by Hill et al. in 1997, Nordqvist et al. in 1998 and Robinson et al. in 2004 found poor results following conservative treatment of displaced middle third clavicle fracture. Hence, there seemed specific indication, like displacement, with or without comminution in middle third clavicle fracture (Robinson Type 2B1 and 2B2), for which nonoperative approach is not optimum. The present study of operative and nonoperative modalities in patients with displaced middle third clavicle fractures yielded a better outcome in the operative group in terms of early and higher union, lower complication rates, and improved shoulder scores. This study was compared mainly with two studies. The first study of Böstman et al. which treated displaced middle third clavicle fractures. In this study, totally 103 patients were treated by early ORIF with plate and screws. Other was multicenter trials and their analysis by Canadian Orthopaedics Trauma Society.
In this study, majority of the middle third clavicle fracture in operative group united between 12 and 24 weeks that is, 11 patients (91.7%) compared to only 12 fractures (60%) in conservative group. The average duration of the union in operative group was 16.5 weeks, and 27.2 weeks in the nonoperative group. In Canadian analysis  mean time of fracture union was 16.4 weeks in operative group and 28.4 weeks in the nonoperative group. Universal conception that most of the clavicle fractures unite by the end of 12 weeks after conservative management, doesn't appear reasonable for displaced fractures. Long duration is required for the bridging callus to be formed across the large gap between the fragments. Open reduction by reducing the fracture gap enhances the healing and thereby reducing the union time considerably.
In our study, there was no nonunion in operative group, while in nonoperative group 2 patients (10%) undergone nonunion. In the randomized clinical trial of Canadian Orthopaedics Trauma Society, nonunion reported in 3.2% in the operative group as compared to 14.3% among the nonoperative group. The absence of nonunion in our operative group necessitates further studies to be conducted with larger sample sizes as this complication is no longer a prevalent one in operative groups as considered earlier. In operative 12 patients delayed union occurred in 1 patients (8.3%) as compared to 6 patients (30%) in nonoperative group.
Adults do not possess same remodeling potential as younger children, and most mid-shaft clavicle fractures heal with some degree of malunion. A symptomatic malunion was described as any fracture union with shortening and then residual sequelae. In our study, patient developed this complication in operative group while in 20 nonoperated patients 5 patients (25%) developed symptomatic malunion. In Canadian study  no patient in the operative group presented with symptomatic malunion while 9 out of 49 patients (18.3%) developed this complication.
Plate breakage and plate loosening had not occurred in this study. In Böstman et al. study, of patients treated with semi tubular plate, 1.9% of the patients had implanted breakage and 6.8% had loosened. The reason for this difference seems to be due to two factors. First, less stress on our precontoured fixation device because of S-shape better suited for clavicle anatomy thus causing less stress in the overall construct. Second, greater strength of locking plate as compared to the semi-tubular plate.
The functional outcome according to Constant and Murley  was found to be significantly higher in operative group. In this study, average constant score in the operative group was found to be 93.7 and 85.9 in nonoperative group. Canadian Orthopaedics Trauma Society  found an average constant score of 96.1 in operative group and 90.8 in the nonoperative group.
The advantage of rigid internal fixation and early mobilization of fresh displaced clavicle fracture is that it gives immediate pain relief and prevents the development of shoulder stiffness, symptomatic mal-union, and nonunion, thus, resulting in better functional outcome.
Sample size being small, low prevalence complications could not be encountered in this study. Larger sample size will be a prerequisite for knowing the prevalence of nonunion and symptomatic malunion in operative group. With the availability of improved biomechanics of newer implants, plate breakage, plate loosening, mechanical failure, and implant reaction are also uncommon complications.
| Conclusion|| |
Clavicle fractures are usually treated conservatively, but there are specific indications for which operative treatment is needed such as comminuted and displaced middle third clavicle fractures. It was observed that primary ORIF with plate and screws of fresh middle third clavicle fractures provides a more rigid fixation and yielded better functional outcome and resulted in high union rates. As plate fixation provides rotational stability, there is no need of immobilization for long periods. All the fractures united, and there was no nonunion in operative group. For displaced, comminuted middle third clavicle fracture plate and screws fixation and early mobilization gave excellent resulted in 83.3% patients. In a nonoperative group, nonunion rate was found to be 10%, and the excellent outcome was found only in 40% patients.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
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[Figure 1], [Figure 2], [Figure 3], [Figure 4]
[Table 1], [Table 2], [Table 3]