The Open Orthopaedics Journal




ISSN: 1874-3250 ― Volume 14, 2020
RESEARCH ARTICLE

The Latarjet Procedure: Effective and Safe



Leanne Dupley1, *, Lennard Funk1
1 Wrightington and Leigh NHS Foundation Trust, The Upper Limb Unit, Wigan, United Kingdom

Abstract

Background:

The Latarjet procedure is used to treat recurrent anterior shoulder instability in patients with bony glenoid loss and/or failed previous stabilisation surgery. It has reportedly high success rates, but recent publications have reported concerns of high complication rates. This study aims to assess the complications and outcomes of the Latarjet procedure in our institution, with a minimum 2-year follow-up and compared it to the current literature.

Methods:

Patients who underwent the procedure over a 36-month period were included in this study (n=81). Seventy-three (90%) patients in our cohort competed in amateur to professional level sports. The indications for surgery were recurrent instability with associated bony glenoid deficiency and/or previous failed arthroscopic stabilisations. The Oxford Shoulder Instability, Constant Shoulder and QuickDASH scores were recorded pre- and post-operatively, along with post-operative complications and failures.

Results:

Eight (9.9%) complications were recorded: three re-dislocations, two deep infections, one haematoma, one screw breakage and one case of biceps tendinopathy. The mean pre-operative Oxford Shoulder Instability Score improved from 23.2 ± 10.1 to 37 ± 9.2 following the procedure. The mean Constant Shoulder and quickDASH scores also improved from 55.1 ± 21.2 and 30.3 ± 24.3 to 88.1 ± 9.2 and 17.7 ± 23.5 respectively. 98.6% of the patients returned to their pre-injury level of sports.

Conclusion:

From this study it can be concluded the Latarjet procedure is an effective surgical treatment for recurrent anterior shoulder instability associated with bony glenoid loss, even in high contact professional athletes. Complication rates are lower than previous recent studies have stated.

Keywords: Latarjet procedure, Shoulder, Instability, Dislocation, Sports, Bony glenoid loss.


Article Information


Identifiers and Pagination:

Year: 2019
Volume: 13
First Page: 272
Last Page: 275
Publisher Id: TOORTHJ-13-272
DOI: 10.2174/1874325001913010272

Article History:

Received Date: 13/08/2019
Revision Received Date: 16/10/2019
Acceptance Date: 14/11/2019
Electronic publication date: 31/12/2019
Collection year: 2019

© 2019 Dupley and Funk.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


* Address correspondence to this author at Wigan, Wrightington and Leigh NHS Foundation Trust, The Upper Limb Unit, Wigan, United Kingdom;
Tel: 07966054793; Email: leannedupley@doctors.org.uk






1. INTRODUCTION

The Latarjet procedure, first described by Michel Latarjet in 1954 [1Latarjet M. Treatment of recurrent dislocation of the shoulder. Lyon Chir 1954; 49(8): 994-7.
[PMID: 13234709]
], is used for recurrent anterior instability of the glenohumeral joint, most commonly associated with glenoid bone loss, or following failed soft tissue stabilisation procedures. However, in current trends, some surgeons perform the Latarjet procedure on first-time dislocations, particularly on individuals who are deemed high risk for ongoing instability. Large bony defects (either bony Bankart lesions or Hill-Sachs lesions), young age at first dislocation, male sex, previous episodes of instability and participation in higher-level sporting activities have all been shown to increase the likelihood of ongoing instability, with age and sex being the most reliable predictive factors [2te Slaa RL, Brand R, Marti RK. A prospective arthroscopic study of acute first-time anterior shoulder dislocation in the young: A five-year follow-up study. J Shoulder Elbow Surg 2003; 12(6): 529-34.
[http://dx.doi.org/10.1016/S1058-2746(03)00218-0] [PMID: 14671513]
-5Robinson CM, Howes J, Murdoch H, Will E, Graham C. Functional outcome and risk of recurrent instability after primary traumatic anterior shoulder dislocation in young patients. J Bone Joint Surg Am 2006; 88(11): 2326-36.
[http://dx.doi.org/10.2106/00004623-200611000-00002] [PMID: 17079387]
].

The Latarjet procedure involves passing an osteotomised coracoid process graft with attached conjoint tendon through a horizontal splitting of the subscapularis tendon and securing the graft onto the anterior surface of the glenoid where the bony defect has occurred [1Latarjet M. Treatment of recurrent dislocation of the shoulder. Lyon Chir 1954; 49(8): 994-7.
[PMID: 13234709]
].

The procedure works in three ways to improve anterior stability at the glenohumeral joint as described by Patte [6Patte D, Debeyre J. Luxations recidivantes de l’epaule. Encycl Med Chir Technique Chirurgicales Orthopedie-Traumatologie Paris: Elsevier 1980; 44–265-02.] as: bony defect correction, “sling” formation from the subscapularis and conjoint tendons improving stability when the arm is abducted and externally rotated and finally, capsular reconstruction using the coracoacromial ligament [7Boardman ND III, Cofield RH. Neurologic complications of shoulder surgery. Clin Orthop Relat Res 1999; (368): 44-53.
[PMID: 10613152]
, 8Yamamoto N, Muraki T, An KN, et al. The stabilizing mechanism of the Latarjet procedure: a cadaveric study. J Bone Joint Surg Am 2013; 95(15): 1390-7.
[http://dx.doi.org/10.2106/JBJS.L.00777] [PMID: 23925743]
].

In a recent systematic review, patient-reported outcomes of good to excellent in 90% of patients were seen [9Bhatia S, Frank RM, Ghodadra NS, et al. The outcomes and surgical techniques of the latarjet procedure. Arthroscopy 2014; 30(2): 227-35.
[http://dx.doi.org/10.1016/j.arthro.2013.10.013] [PMID: 24485116]
]. However, recent studies examining the outcomes of the Latarjet procedure cite high rates of complications, particularly infection, recurrent instability and neurological injury. Shah et al., published complication rates of 25% in a retrospective review of 48 Latarjet procedures, with a neurological injury rate of 10%, a recurrent instability rate of 8% and the infection rate of 3% [10Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
]. A systematic review by Griesser et al., examining 1904 shoulders suggests a similar total complication rate of 30%, with a neurological injury rate of 1.8%, a recurrent instability rate of 5.8% (confirmed anterior dislocation rate of 2.9%), and an infection rate of 1% [11Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operations after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg 2013; 22(2): 286-92.
[http://dx.doi.org/10.1016/j.jse.2012.09.009] [PMID: 23352473]
]. Another recent systematic review by Cowling et al., showed a similarly low rate of infection of 1.34% and a neurological injury rate of 0.51%, but a re-dislocation rate of 3.8% (excluding a study of epileptic patients) [12Cowling PD, Akhtar MA, Liow RY. What is a Bristow-Latarjet procedure? A review of the described operative techniques and outcomes. Bone Joint J 2016; 98-B(9): 1208-14.
[http://dx.doi.org/10.1302/0301-620X.98B9.37948] [PMID: 27587522]
]. Frank et al., analysed their Latarjet procedures for their 90-day complication rate, which was found to be 7.5% in 133 shoulders, however, no patient-reported outcome measures were assessed [13Frank RM, Gregory B, O’Brien M, et al. Ninety-day complications following the Latarjet procedure. J Shoulder Elbow Surg 2019; 28(1): 88-94.
[http://dx.doi.org/10.1016/j.jse.2018.06.022] [PMID: 30121152]
].

We aimed to retrospectively analyse our Latarjet procedures performed at our institution for mid-term complications, with a minimum of 2-year follow up, and assess patient-reported outcomes. Our patient cohort consisted of predominantly athletic individuals competing in contact sports, which is a risk factor for ongoing instability following arthroscopic stabilisation [5Robinson CM, Howes J, Murdoch H, Will E, Graham C. Functional outcome and risk of recurrent instability after primary traumatic anterior shoulder dislocation in young patients. J Bone Joint Surg Am 2006; 88(11): 2326-36.
[http://dx.doi.org/10.2106/00004623-200611000-00002] [PMID: 17079387]
]. This is an important patient factor to consider as these individuals may require more robust primary stabilising procedures, such as the Latarjet procedure.

2. MATERIALS AND METHODS

Overall, 81 Latarjet procedures were performed on 81 patients (mean age 24 years ± 7.4) over a 36-month period (between June 2012 and June 2015). In total, 73 of 81 patients (90%) of our patient population participated in competitive sports. The indication for surgery was recurrent shoulder instability with any anterior-inferior bony glenoid deficiency and/or previous failed arthroscopic stabilisations. Pre- and post-operative patient-reported outcome measures were used to determine the functional outcome and patient satisfaction. Post-operative scores were taken at final follow-up appointments. The Oxford Shoulder Instability score [14Dawson J, Fitzpatrick R, Carr A. Questionnaire on the perceptions of patients about shoulder surgery. J Bone Joint Surg Br 1996; 78(4): 593-600.
[http://dx.doi.org/10.1302/0301-620X.78B4.0780593] [PMID: 8682827]
], ranging from 0 (maximum disability/symptoms) to 48 (no dis ability/symptoms), the Constant Shoulder score [15Constant CR, Murley AHG. A clinical method of functional assessment of the shoulder. Clin Orthop Relat Res 1987; (214): 160-4.
[http://dx.doi.org/10.1097/00003086-198701000-00023] [PMID: 3791738]
], ranging from 0 (maximum disability/symptoms) -100 (no dis ability/symptoms), and quickDASH [16Beaton DE, Wright JG, Katz JN, Amadio P. Development of the QuickDASH: comparison of three item-reduction approaches. J Bone Joint Surg Am 2005; 87(5): 1038-46.
[http://dx.doi.org/10.2106/JBJS.D.02060] [PMID: 15866967]
] score ranging from a score of 0 (no disability/symptoms) to 100 (maximum disability/ symptoms), were all analysed. We also analysed postoperative complications, re-operation rates, and re-dislocation rates. Patients were followed up for a minimum of 2 years for complications. All the patients in this study signed consent forms for their anonymised data to be utilised for scientific and research purposes.

3. RESULTS

Overall, 81 open Latarjet procedures were included in our analysis with 96.3% (n=78) males and 3.7% (n=3) females. Patients were followed up for a minimum of 2 years for complications (range 24-60 months). In total, 73 of 81 patients (90%) participated in regular sporting activity. In total, 56 of 81 patients (69%) of our cohort played rugby from amateur to professional level. (Table 1) shows a summary of sporting activity played. The mean age at the time of the Latarjet procedure was 24 years (15-50 years).

Eighteen (22%) of the Latarjet procedures were performed as a primary operation, whilst 63 (78%) were revisions, with all primary operations being failed arthroscopic stabilisations. Mean time from injury to surgery was 241 days (3-1590 days). There were a similar number of right and left shoulders (41 and 40 respectively), with a majority 75.3% (n=61) of patients being right hand dominant. 53% (n=35) had injured their dominant limb.

Table 1
Summary of Sporting Activity.


3.1. Patient-Reported Outcome Scores

All outcome measure scores improved postoperatively and were measured at the final follow-up. Our cohort of patients were highly active individuals, with 74 (91%) competing in high level/professional sports. All the patients except 1 (1.2%) were able to return to sporting activity at a pre-injury level. Mean time from operation to return to the sport activity was 126 days (83-270 days). (Table 2) shows the pre- and post-operative scores for each outcome measure.

Table 2
A Summary of patient outcome scores.


3.2. Postoperative Complications

We report a 9.9% (n=8) complication rate following 81 Latarjet procedures. All 8 of these patients required surgical intervention.

3.3. Infection

Overall, 2 out of 81 patients (2.5%) were found to have deep infections requiring washouts. One of these patients then went on to non-union of the coracoid which was treated with a CT guided osseograft injection, which subsequently united and he made a return to professional rugby within 6 months of the injection. The second patient with a deep infection went on to develop non-union, with screw breakage and required revision to an Eden-Hybinette procedure. He too returned to professional Rugby 4 months later.

3.4. Screw Failure

One patient attended with increasing shoulder pain, and had a non-union of the graft with osteolysis and screw breakage diagnosed on CT scan. He went on to have this revised to an Eden-Hybinette procedure, which unfortunately also failed and was unable to return to professional rugby.

3.5. Re-dislocation

Overall, 3 patients (3.7%) had recurrent dislocations, however, all these were traumatic dislocations during sports. The first patient sustained screw displacement during the dislocation which required a successful revision Latarjet procedure. The second and third patients sustained anterior labral tears during the dislocations, diagnosed on CT scan, with both being successfully repaired arthroscopically, allowing them to return to their professional sporting careers (football and rugby).

3.6. Neurovascular Complications

There were no reported cases of any neurological complications in our patient cohort. One patient (1.3%) developed a postoperative haematoma which required exploration and ligation of the cephalic vein the same day as the Latarjet Procedure, which resulted in no further problems.

One final patient developed biceps tendonitis 5 months post-operatively for which she underwent arthroscopic biceps tenodesis.

4. DISCUSSION

The Latarjet procedure can result in potentially serious complications, however, our results are reassuring and suggest much lower complication rates than the current literature has suggested.

In our study, the mean age of patients undergoing the Latarjet procedure was 24 years (15-50 years) which is similar to that of a large systematic review of 1,904 shoulders (25.9 years (8-69years) by Griesser et al. [11Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operations after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg 2013; 22(2): 286-92.
[http://dx.doi.org/10.1016/j.jse.2012.09.009] [PMID: 23352473]
] Seventy-eight (96.3%) patients were male in our study, which is similar to other studies. Griesser et al., reported early complication rates of up to 30% with this procedure, however, in our study we found a markedly lower total complication rate of 9.9%. They found a total infection rate of 1.3%, which is half of the findings in our study of 2.5%.

Shah et al. [10Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
], report a total complication rate of 25% in their study of 45 Latarjet procedures, with a 6% rate of infection. However, all infections were superficial and settled with antibiotic therapy, compared to our 2 deep infections, requiring surgical intervention. Shah et al. [10Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
], also reported a 10% rate of neurological injury (two musculocutaneous nerve, two axillary nerve and one radial nerve injury). Our study of 81 Latarjet procedures reports no cases of neurological injury. Causes of neurological injury include traction, accidental suture ligation and patient mal-positioning [7Boardman ND III, Cofield RH. Neurologic complications of shoulder surgery. Clin Orthop Relat Res 1999; (368): 44-53.
[PMID: 10613152]
, 17Ho E, Cofield RH, Balm MR, Hattrup SJ, Rowland CM. Neurologic complications of surgery for anterior shoulder instability. J Shoulder Elbow Surg 1999; 8(3): 266-70.
[http://dx.doi.org/10.1016/S1058-2746(99)90140-4] [PMID: 10389084]
], which suggests that careful patient set up and meticulous operative technique can avoid such injuries.

In our study, we observed 3 recurrent dislocations (3.7%), but no other reports of “instability” or subluxations (total recurrent instability rate of 3.7%). All 3 re-dislocations in our study were traumatic occurring during contact sporting activity. Mizuno et al. [18Mizuno N, Denard PJ, Raiss P, Melis B, Walch G. Long-term results of the Latarjet procedure for anterior instability of the shoulder. J Shoulder Elbow Surg 2014; 23(11): 1691-9.
[http://dx.doi.org/10.1016/j.jse.2014.02.015] [PMID: 24835298]
], in a long-term study of 68 Latarjet procedures, had a similar recurrent dislocation rate of 2.9%, but also a recurrent rate of subluxation without frank dislocation of 2.9% (total recurrent instability 5.8%). Shah et al. [10Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
], in a study of 45 Latarjet procedures, reported a total recurrent instability of 8% (6% “instability without frank dislocation”, 2% re-dislocation). It could be argued in our study that, as all re-dislocations were traumatic following high-contact collisions in sport, they may well have dislocated in a previously unaffected shoulder.

Frank et al., assessed 90-day complication rates following 133 Latarjet procedures and found an overall complication rate of 7.5% [13Frank RM, Gregory B, O’Brien M, et al. Ninety-day complications following the Latarjet procedure. J Shoulder Elbow Surg 2019; 28(1): 88-94.
[http://dx.doi.org/10.1016/j.jse.2018.06.022] [PMID: 30121152]
]. This included 2 recurrent dislocations (1.5%), both requiring revision surgery, and 2 deep infections (1.5%) requiring washouts. Interestingly their early recurrent dislocations were seen in low demand female patients. They also reported one (0.75%) musculocutaneous nerve injury which required decompression and nerve grafting. Revision surgery is more complex than primary surgery, and this may affect complication rates. Sixty-three (78%) of our patient cohort underwent Latarjet procedures following failed arthroscopic stabilisations. Patient cohorts of both Frank et al., and Shah et al., were similar to ours, with 69% and 73% respectively, having undergone at least 1 prior ipsilateral shoulder surgery and despite the complexity of revision surgery, we report a relatively low complication rate, compared to the literature [10Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
, 13Frank RM, Gregory B, O’Brien M, et al. Ninety-day complications following the Latarjet procedure. J Shoulder Elbow Surg 2019; 28(1): 88-94.
[http://dx.doi.org/10.1016/j.jse.2018.06.022] [PMID: 30121152]
].

All 8 patients in our study who experienced complications required surgical intervention, and of these 8, 5 were professional athletes. Of those 5 athletes, 4 were able to return to their sport at a professional level despite the complication that they had. The other 3 patients were not professional athletes, however, only 1 patient continued to experience problems at the final follow up. Return to sporting activity is an important outcome measure for Latarjet procedures; in our study, a total of 73 patients (90%) participated in competitive sports, of which, 56 patients (68%) played rugby from amateur to professional level. Only one patient (1.2%) was unable to return to professional level sport. This is markedly lower than rates of 20% failure to return to professional level sports in a long-term follow-up study by Allain et al. [19Allain J, Goutallier D, Glorion C. Long-term results of the Latarjet procedure for the treatment of anterior instability of the shoulder. J Bone Joint Surg Am 1998; 80(6): 841-52.
[http://dx.doi.org/10.2106/00004623-199806000-00008] [PMID: 9655102]
]

In our study, we report a re-operation rate of 9.9%, which is equal to our complication rate, as all our complications required surgical intervention; the large systematic review by Griesser et al., reported a re-operation rate of 7% [11Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operations after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg 2013; 22(2): 286-92.
[http://dx.doi.org/10.1016/j.jse.2012.09.009] [PMID: 23352473]
].

5. LIMITAIONS AND STRENGHTS

We report on a relatively low number of Latarjet procedures and in a retrospective nature. Our patient cohort is also specific, with 73 patients (90%) participating in competitive sports, and therefore, our conclusions cannot be applied to low demand patients. That said, we have demonstrated low rates of recurrent instability even in high demand contact athletes, and we hypothesize that if the Latarjet procedure is effective in these patients, it will withstand daily activities of lower demand patients. We report on patient-reported outcomes assessing patient satisfaction, and complications with a minimum of 2-year follow-up. We had no losses to follow up, ensuring our complication and re-dislocation rate are not falsely low.

CONCLUSION

The goal of this retrospective analysis was to assess the mid-term outcomes of the Latarjet procedure. We focused on postoperative complications, recurrent instability and functional outcome scores and compared them to current literature. Our study reveals a complication rate of 9.9% which is lower than the current literature for the Latarjet procedure. Shoulder outcome scores showed improved function and shoulder stability, reduced disability and allowed almost all individuals to return to high-level contact sports.

This study demonstrates that the Latarjet procedure remains an excellent operation for patients with recurrent anterior glenohumeral instability and/or failed arthroscopic stabilisations including the high contact professional athlete, with low complication rates and an excellent rate of return to sport.

ETHICS APPROVAL AND CONSENT TO PARTICIPATE

All patients in this study signed consent forms for their anonymised data to be utilised for scientific and research purposes.

HUMAN AND ANIMAL RIGHTS

No animals/humans were used for studies that are the basis of this research.

CONSENT FOR PUBLICATION

Data was analysed retrospectively and there was no change in the patients' standard of care decision making.

FUNDING

None.

CONFLICT OF INTEREST

The authors declare no conflict of interest, financial or otherwise.

ACKNOWLEDGEMENTS

Declared none.

REFERENCES

[1] Latarjet M. Treatment of recurrent dislocation of the shoulder. Lyon Chir 1954; 49(8): 994-7.
[PMID: 13234709]
[2] te Slaa RL, Brand R, Marti RK. A prospective arthroscopic study of acute first-time anterior shoulder dislocation in the young: A five-year follow-up study. J Shoulder Elbow Surg 2003; 12(6): 529-34.
[http://dx.doi.org/10.1016/S1058-2746(03)00218-0] [PMID: 14671513]
[3] Simonet WT, Cofield RH. Prognosis in anterior shoulder dislocation. Am J Sports Med 1984; 12(1): 19-24.
[http://dx.doi.org/10.1177/036354658401200103] [PMID: 6703178]
[4] Kralinger FS, Golser K, Wischatta R, Wambacher M, Sperner G. Predicting recurrence after primary anterior shoulder dislocation. Am J Sports Med 2002; 30(1): 116-20.
[http://dx.doi.org/10.1177/03635465020300010501] [PMID: 11799007]
[5] Robinson CM, Howes J, Murdoch H, Will E, Graham C. Functional outcome and risk of recurrent instability after primary traumatic anterior shoulder dislocation in young patients. J Bone Joint Surg Am 2006; 88(11): 2326-36.
[http://dx.doi.org/10.2106/00004623-200611000-00002] [PMID: 17079387]
[6] Patte D, Debeyre J. Luxations recidivantes de l’epaule. Encycl Med Chir Technique Chirurgicales Orthopedie-Traumatologie Paris: Elsevier 1980; 44–265-02.
[7] Boardman ND III, Cofield RH. Neurologic complications of shoulder surgery. Clin Orthop Relat Res 1999; (368): 44-53.
[PMID: 10613152]
[8] Yamamoto N, Muraki T, An KN, et al. The stabilizing mechanism of the Latarjet procedure: a cadaveric study. J Bone Joint Surg Am 2013; 95(15): 1390-7.
[http://dx.doi.org/10.2106/JBJS.L.00777] [PMID: 23925743]
[9] Bhatia S, Frank RM, Ghodadra NS, et al. The outcomes and surgical techniques of the latarjet procedure. Arthroscopy 2014; 30(2): 227-35.
[http://dx.doi.org/10.1016/j.arthro.2013.10.013] [PMID: 24485116]
[10] Shah AA, Butler RB, Romanowski J, Goel D, Karadagli D, Warner JJ. Short-term complications of the Latarjet procedure. J Bone Joint Surg Am 2012; 94(6): 495-501.
[http://dx.doi.org/10.2106/JBJS.J.01830] [PMID: 22318222]
[11] Griesser MJ, Harris JD, McCoy BW, et al. Complications and re-operations after Bristow-Latarjet shoulder stabilization: a systematic review. J Shoulder Elbow Surg 2013; 22(2): 286-92.
[http://dx.doi.org/10.1016/j.jse.2012.09.009] [PMID: 23352473]
[12] Cowling PD, Akhtar MA, Liow RY. What is a Bristow-Latarjet procedure? A review of the described operative techniques and outcomes. Bone Joint J 2016; 98-B(9): 1208-14.
[http://dx.doi.org/10.1302/0301-620X.98B9.37948] [PMID: 27587522]
[13] Frank RM, Gregory B, O’Brien M, et al. Ninety-day complications following the Latarjet procedure. J Shoulder Elbow Surg 2019; 28(1): 88-94.
[http://dx.doi.org/10.1016/j.jse.2018.06.022] [PMID: 30121152]
[14] Dawson J, Fitzpatrick R, Carr A. Questionnaire on the perceptions of patients about shoulder surgery. J Bone Joint Surg Br 1996; 78(4): 593-600.
[http://dx.doi.org/10.1302/0301-620X.78B4.0780593] [PMID: 8682827]
[15] Constant CR, Murley AHG. A clinical method of functional assessment of the shoulder. Clin Orthop Relat Res 1987; (214): 160-4.
[http://dx.doi.org/10.1097/00003086-198701000-00023] [PMID: 3791738]
[16] Beaton DE, Wright JG, Katz JN, Amadio P. Development of the QuickDASH: comparison of three item-reduction approaches. J Bone Joint Surg Am 2005; 87(5): 1038-46.
[http://dx.doi.org/10.2106/JBJS.D.02060] [PMID: 15866967]
[17] Ho E, Cofield RH, Balm MR, Hattrup SJ, Rowland CM. Neurologic complications of surgery for anterior shoulder instability. J Shoulder Elbow Surg 1999; 8(3): 266-70.
[http://dx.doi.org/10.1016/S1058-2746(99)90140-4] [PMID: 10389084]
[18] Mizuno N, Denard PJ, Raiss P, Melis B, Walch G. Long-term results of the Latarjet procedure for anterior instability of the shoulder. J Shoulder Elbow Surg 2014; 23(11): 1691-9.
[http://dx.doi.org/10.1016/j.jse.2014.02.015] [PMID: 24835298]
[19] Allain J, Goutallier D, Glorion C. Long-term results of the Latarjet procedure for the treatment of anterior instability of the shoulder. J Bone Joint Surg Am 1998; 80(6): 841-52.
[http://dx.doi.org/10.2106/00004623-199806000-00008] [PMID: 9655102]

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J. Ferwerda
(University of Oxford, UK)

"Open Access 'Chemistry' Journals allow the dissemination of knowledge at your finger tips without paying for the scientific content."


Sean L. Kitson
(Almac Sciences, Northern Ireland)

"In principle, all scientific journals should have open access, as should be science itself. Open access journals are very helpful for students, researchers and the general public including people from institutions which do not have library or cannot afford to subscribe scientific journals. The articles are high standard and cover a wide area."


Hubert Wolterbeek
(Delft University of Technology, The Netherlands)

"The widest possible diffusion of information is critical for the advancement of science. In this perspective, open access journals are instrumental in fostering researches and achievements."


Alessandro Laviano
(Sapienza - University of Rome, Italy)

"Open access journals are very useful for all scientists as they can have quick information in the different fields of science."


Philippe Hernigou
(Paris University, France)

"There are many scientists who can not afford the rather expensive subscriptions to scientific journals. Open access journals offer a good alternative for free access to good quality scientific information."


Fidel Toldrá
(Instituto de Agroquimica y Tecnologia de Alimentos, Spain)

"Open access journals have become a fundamental tool for students, researchers, patients and the general public. Many people from institutions which do not have library or cannot afford to subscribe scientific journals benefit of them on a daily basis. The articles are among the best and cover most scientific areas."


M. Bendandi
(University Clinic of Navarre, Spain)

"These journals provide researchers with a platform for rapid, open access scientific communication. The articles are of high quality and broad scope."


Peter Chiba
(University of Vienna, Austria)

"Open access journals are probably one of the most important contributions to promote and diffuse science worldwide."


Jaime Sampaio
(University of Trás-os-Montes e Alto Douro, Portugal)

"Open access journals make up a new and rather revolutionary way to scientific publication. This option opens several quite interesting possibilities to disseminate openly and freely new knowledge and even to facilitate interpersonal communication among scientists."


Eduardo A. Castro
(INIFTA, Argentina)

"Open access journals are freely available online throughout the world, for you to read, download, copy, distribute, and use. The articles published in the open access journals are high quality and cover a wide range of fields."


Kenji Hashimoto
(Chiba University, Japan)

"Open Access journals offer an innovative and efficient way of publication for academics and professionals in a wide range of disciplines. The papers published are of high quality after rigorous peer review and they are Indexed in: major international databases. I read Open Access journals to keep abreast of the recent development in my field of study."


Daniel Shek
(Chinese University of Hong Kong, Hong Kong)

"It is a modern trend for publishers to establish open access journals. Researchers, faculty members, and students will be greatly benefited by the new journals of Bentham Science Publishers Ltd. in this category."


Jih Ru Hwu
(National Central University, Taiwan)


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