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Contraindications and Complications of the Latarjet Procedure

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Contraindications and Complications of the Latarjet Procedure S REVIEW ARTICLE Shoulder & Elbow 2018, Vol. 10(1) 15–24 ! The Author(s) 2017 Contraindications and complications Reprints and permissions: sagepub.co.uk/journalsPermissions.nav of the Latarjet procedure DOI: 10.1177/1758573217728716 journals.sagepub.com/home/sel Peter Domos1, Enricomaria Lunini2 and Gilles Walch3 Abstract The Latarjet procedure is a well-known, safe and reliable technique to treat primary or recurrent anterior dislocations or subluxations, with or without hyperlaxity, with or without glenoid bone loss. Both the open and the arthroscopic methods produce excellent clinical results, with a low rate of recurrent instability. There have been concerns of a higher surgical complication rate associated with this procedure, however, large reviews reported an overall complica- tion rate in the open Latarjet procedure of 15%. Meticulous surgical technique and a good understanding of the local anatomy can help to avoid the complications but postoperative shoulder arthritis and frequent bone block osteolysis remain unsolved additional challenges, which require further research. There are 2 main factors to further improve the clinical outcome and patient satisfaction: careful patient selection with good surgical indication, and reducing complica- tions with adequate surgical techniques. The aim of this study is to provide the current overview of the contraindications and complications of the Latarjet procedure. Keywords anterior instability, complications, contraindications, Latarjet procedure, shoulder, shoulder instability Date received: 4th April 2017; accepted: 4th August 2017 Introduction (3) The ‘Bankart effect’ of repairing the capsulolabral complex to the bone or the stump of the coraco- Recurrent anterior shoulder instability is often caused acromial ligament (CAL) to the capsule. by glenoid and/or humeral bony defects additional to the soft tissue injuries.1–3 Increased surgical failure of This open technique also has several modifications: the soft tissue repair alone is usually associated with (i) CAL repair to the capsule; (ii) the use of two screws significant bony defects or inadequate soft tissue avail- for stable fixation of the bone block; and (iii) the sub- ability.1–3 For this reason, patients with bony defects scapularis horizontal splitting approach, which can and recurrent anterior shoulder instability were mana- protect the muscle and allow for immediate postopera- ged with different glenoid restoring procedures, In tive exercises even in external rotation.5,7,8 Further vari- 1954, Latarjet suggested that the coracoid process can ations have been reported recently: the position and be transferred and fixed with a screw to the margin of alignment of the transferred coracoid,9,10 including the glenoid.4 This bone block technique with an aug- intra- or extra-articular placement (which may reduce mentation of the anteroinferior part of the glenoid has postoperative osteoarthritis11), techniques of bone clear advantages especially in cases with significant block fixation12–15 with or without the repair of the bone loss, although the mechanism is still not fully understood. The possible mechanism has been 1 5 Sheffield Teaching Hospitals NHS Foundation Trust, The Northern described previously as a triple effect: General Hospital, UK 2Orthopaedic Unit, Hospital of Guastalla, Reggio Emilia, Italy (1) The dynamic ‘sling’ effect of the conjoint tendon 3Centre Orthopaedique Santy, Lyon, France acting on the subscapularis and capsule in certain arm position (probably the most important Corresponding author: 6 Peter Domos, Sheffield Teaching Hospitals NHS Foundation Trust, The effect ). Northern General Hospital, Herries Road, Sheffield, South Yorkshire (2) The ‘bony effect’ of increasing the glenoid surface S5 7AU, UK. area. Email: [email protected] 16 S Shoulder & Elbow 10(1) capsulolabral structures, and performing the surgery adequate surgical techniques. These factors are dis- arthroscopically assisted.16–19 cussed in the present review. Although the reported clinical results and outcomes are usually successful with this procedure, several com- Contraindications of the Latarjet plications have also been reported, including infection, frozen shoulder, haematoma formation, symptomatic procedure implants, fracture or non-union of the coracoid graft, Recurrent anterior instability associated with neurological complications, arthritis and recurrence of massive irreparable rotator cuff tear and in the instability. In particular, the risk of recurrence and the older population (>50 years old) long-term outcomes of this procedure strongly depend on the correct positioning of the bone graft. A position Instability can be associated with rotator cuff tears in that is too lateral or overhangs may result in the graft older patients.29–34 The indication for surgery is based causing cartilage damage on the humeral head and early on the instability or the pain secondary to the rotator osteoarthritis.20,21,22–24 A position that is too medial is cuff tear. The type of the surgical technique depends on associated with a higher risk of recurrence.25,26 the reparability of the rotator cuff, which requires Previously, there have been some concerns about the assessment with systematic preoperative imaging (the rate of these complications after the Latarjet procedure, size and retraction of the tear, fatty infiltration of the although more recent large reviews described an overall rotator cuff muscle). If there is repairable cuff tendon complication rate of 15% with the open Latarjet and no significant glenoid bone loss, then Bankart procedure.27 repair with the management of the rotator cuff is a Excellent clinical results have been reported with good solution. Walch et al.8 have also reported success- both the open and the arthroscopic techniques, with a ful Latarjet procedure combined with open rotator cuff low rate of failure;15 however, on the basis of the cur- repair (small- to medium-sized supraspinatus tears) rent data, the open technique is probably still con- using the same surgical incision but rotating the arm sidered the gold standard because the arthroscopic to help the surgical exposure. Arthroscopic techniques technique is more time-consuming and has higher may be an ideal solution, although its results need to be direct costs.28 further evaluated. Currently, there is no evidence in It is well-known that primary or recurrent anterior literature, although recent research project may further dislocations or subluxations, with or without glenoid clarify the results of the Latarjet technique in older bone loss and hyperlaxity, are the best indications for patients, especially the potentially increased risk of the Latarjet procedure.8 However, there are two main bone block complications (fracture, non-union) as a factors to further improve the clinical outcomes and result of the bone quality and accelerated degenerative patient satisfaction: (i) careful patient selection with changes (Domos and Walch, unpublished data). In our good indication and (ii) avoiding complications with experience, the Latarjet surgery is a relative Figure 1. Static anterior instability of the humeral head (HH) and avascular necrosis of HH in contact with bone block. (a) Antero- posterior plain radiograph. (b) Axial computed tomography scan. S Domos et al. 17 Figure 3. Typical aspect of failure after Latarjet procedure in Figure 2. Inferior static subluxation of the humeral head after epileptic patient: large Hill-Sachs lesion and bending of the Latarjet procedure in a 55-year-old lady. screws. contraindication in older patients because we observed usually successful conservative treatment should be two kinds of special complex complications: the first-line method if concentric HH position is asso- ciated with even a largely displaced glenoid fragment.36 (1) Static anterior instability of the humeral head (HH), with anteroinferior subluxation and pro- Voluntary anterior dislocators or subluxators gressive osteonecrosis of the HH in contact with the bone block (Fig. 1). These are absolute contraindications to the Latarjet (2) Irreducible inferior subluxation of the HH: this is procedure because laxity is difficult to correct by sur- probably caused by the non-elastic part of the sub- gery. The results reported in this group of patients were scapularis, which is pulled down by the transferred always extremely poor37 with many medicolegal and coracoid and the conjoint tendon, consequently litigation issues and a long-term special non-operative allows permanent and irreducible humeral head regime should be the initial option. subluxation (Fig. 2). Patients with uncontrolled epilepsy When the rotator cuff is not repairable (severe fatty infiltration, retraction), the Latarjet procedure is con- When neurological treatment is not or only partially traindicated. Walch et al.35 recommended primarily efficient, any recurrence of seizures leads to fracture treating the instability because the management of the of the coracoid bone block, with a typical 90 bending cuff tear depends on the status of the involved soft tis- of the two screws (Fig. 3). Complete neurological sta- sues, the patients’ age and motivation. In this case, an bility and control is mandatory before undertaking the isolated stabilization by the Trillat procedure restored treatment of recurrent shoulder dislocation in epileptic the stability in 86% of the patients; however, this type patients.38 of surgery has 64% of the rate of osteoarthritis in the 35 older age group. After failure of these procedures,
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