Treatment and outcomes of chronic locked posterior shoulder dislocations: a retrospective case series

BACKGROUND

Posterior shoulder dislocations are rare injuries that are often missed on initial presentation. Cases left untreated for more than three weeks are considered chronic, cannot be reduced closely (they become locked) and are usually associated with a significant reverse Hill-Sachs defect. The aim of this study was to evaluate the outcomes of chronic locked posterior shoulder dislocations treated with the McLaughlin procedure (classic or modified).

METHODS

This retrospective study included 12 patients with chronic locked posterior shoulder dislocation operated on between 2000 and 2021 by two surgeons in two institutions. Patients received a thorough clinical examination and radiological assessment before and after surgery. Shoulders were repaired with the McLaughlin or modified McLaughlin procedure. Outcomes were assessed by comparing pre- and postoperative values of clinical variables.

RESULTS

Most of the dislocations were of traumatic origin. The average delay between dislocation and surgical reduction was 13.5 ± 9.7 weeks. Postoperative clinical outcomes were favourable, with an average subjective shoulder value of 86.4 ± 11.1 and a normalized Constant -Murley score of 90 ± 8.3. None of the patients had a recurrence of shoulder dislocation, but one patient developed avascular necrosis of the humeral head and two patients developed glenohumeral osteoarthritis.

CONCLUSIONS

In this group of patients with chronic locked posterior shoulder dislocation, the clinical outcomes of McLaughlin and modified McLaughlin procedures were satisfactory, even when surgery was significantly delayed.

Open arthrolysis versus arthroplasty in the treatment of posttraumatic elbow stiffness

Elbow stiffness is a common problem following trauma to the elbow. Sixty-seven patients with posttraumatic elbow stiffness were surgically treated between 1985 - 2000. Sixty-one were clinically reviewed after a mean follow-up of 15 years (range: 7 to 19 years). The initial trauma had resulted in 8 intrinsic, in 31 extrinsic and in 28 mixed lesions. The mean preoperative flexion – extension arc of motion, was 46°. After an unsuccessful conservative treatment, open surgical arthrolysis was performed in 59 patients with exclusively extrinsic or mixed lesions, through a lateral approach combined with a medial approach when deemed necessary. In patients with complex intrinsic lesions was performed 3 resection arthroplasty and 5 total elbow arthroplasty. At final follow-up, the mean arc of motion of the elbow was significantly improved to 100° in 56 patients who had undergone open arthrolysis; 3 were lost to follow-up. Among the 3 patients who had undergone arthroplasty resection, only one had a markedly improved elbow function with a 90° arc of motion; elbow stiffness had recurred in the other two patients. Of the 5 patients who underwent total elbow arthroplasty, 3 were lost to follow-up; the other 2 patients had a stable elbow, with a fair arc of motion of 60° and 70° respectively, both with a flexion contracture of 20°. Complications included 2 superficial infections, which healed following conservative treatment, and one fracture following remodeling of a malunited distal fracture of the humerus. In the treatment of the posttraumatic stiffness of the elbow, the arthrolysis and the arthroplasty are indicated in dependence on the existent (extrinsic or intrinsic) lesions and on their severity.

Configuration and Management of a Femoral Heads Bone Bank in a Specialised Tertiary Orthopaedic Hospital in Bucharest

The purpose of the current paper is to describe the functioning protocol of a femoral heads bone bank in a specialised tertiary orthopaedic hospital in Bucharest and the results of its activity between January 2011 and December 2016. Since the initiation of the femoral head bone bank in 2011, we selected and tested 761 donors of femoral heads. Out of them, we implanted 435 grafts to a total of 242 recipient patients. We performed a thorough donor screening process, which resulted in a significant proportion of femoral head allografts discarded, mainly due to a positive hepatitis B or/and C viruses test or a positive result of the bacterial culture from the bone graft (in 3% of the grafts); the offending micro-organism was a Methicillin-Sensible Staphylococcus spp. Our bone bank may serve as a framework for developing similar structures by other hospitals in our country or elsewhere.

MoM total hip replacements in Europe: a NORE report

The purpose of this paper is to determine the prevalence of metal-on-metal (MoM) total hip replacement (THR) in European registries, to assess the incidence of revision surgery and to describe the national follow-up guidelines for patients with MoM THR including resurfacings.

Eleven registries of the Network of Orthopaedic Registries of Europe (NORE) participated totalling 54 434 resurfacings and 58 498 large stemmed MoM THRs.

The resurfacings and stemmed large head MoM had higher pooled revision rates at five years than the standard total hip arthroplasties (THA): 6.0%, 95% confidence interval (CI) 5.3 to 6.8 for resurfacings; 6.9%, 95% CI 4.4 to 9.4 for stemmed large head MoM; and 3.0%, 95% CI 2.5 to 3.6 for conventional THA.

The resurfacings and stemmed large head MoM had higher pooled revision rates at ten years than the standard THAs: 12.1%, 95% CI 11.0 to 13.3 for resurfacings; 15.5%, 95% CI 9.0 to 22 for stemmed large head MoM; and 5.1%, 95% CI 3.8 to 6.4 for conventional THA.

Although every national registry reports slightly different protocols for follow-up, these mostly consist of annual assessments of cobalt and chromium levels in blood and MRI (MARS) imaging.

Cite this article: EFORT Open Rev 2019;4 DOI: 10.1302/2058-5241.4.180078

MRI versus CT as Image Data Source for 3D Printing Bone

In orthopedics, 3D printing is a novel way of visualizing dense human tissue and structures, for example bones and ligaments, but also the respective relations between them, thus providing the surgical team with taking the preoperative planning of an intervention one step further from 3D computer reconstructions. In order for a medical 3D print reconstruction to be possible, bidimensional imaging is necessary, in the form of DICOM files. These are then used by specific software in order to create an STL file, that can then be inputted into a 3D printer and a three-dimensional replica of the desired structure, usually on a 1:1 scale, can be generated. We aim to compare two methods of acquiring and processing of 2D images � MRI and CT scans � as sources of DICOM files, with the end purpose of 3D printing the image of human bone.

The Learning Curve in Arthroscopic ACL Reconstruction. The impact on the Surgical Time and Postoperative Clinical Results

Rupture of the anterior cruciate ligament (ACL) is a common injury. The objective of the current study was to evaluate if the learning curve has an impact on surgical time and postoperative clinical outcomes after anatomic single-bundle anterior cruciate ligament reconstruction (ACLR) using an outside-in tunnel drilling hamstrings technique. The learning curve has a positive impact on surgical time but has no influence on postoperative clinical outcomes at short time follow-up.

Romanian medicine, European medicine

The aim of the present paper is to present the message transmitted by the Presidential Lecture given during the first congress of arthroscopy organised in Romania, in March 2016, by the Romanian Society of Arthroscopy and Sports Trauma (SRATS). The goal was to present the evolution of medical care in Romania over the years, with the remarkable progress made in the first half of the twentieth century and the current status of arthroscopic surgery as seen from the point of view of medical professionals, as well as from a governmental point of view.

Combined Anatomic Anterior Cruciate Ligament and Anterolateral Ligament Reconstruction

PURPOSE

The purpose of the current paper was to report the surgical technique of combined anatomic anterior cruciate ligament (ACL) and anterolateral ligament (ALL) reconstruction as well as the short term clinical results after this surgical procedure.

MATERIAL AND METHODS

The current prospective study included 32 patients (5 females and 27 males) with combined ACL and ALL reconstruction performed between December 2015 and July 2016. The patients were included in the study taking into consideration the following criteria: chronic ACL lesion, high grade rotational instability (pivot shift grade II and III) and participation in high grade pivoting sports. Patient evaluation followed an established clinical and imaging protocol both preoperatively and at 6 and 12 weeks postoperatively. This included clinical knee stability testing (Lachman test, Pivot shift test), Rolimeter differential laxity testing, subjective and objective IKDC scores and Lysholm score and Tegner score.

RESULTS

Postoperative stability at 6 weeks and 12 weeks as tested with Lachman test (p=0.02 and 0.01, respectively), pivot shift test (p=0.03 and 0.01, respectively) and the Rolimeter arthrometer (p=0.008 and 0.006, respectively) showed a statistically significant difference as compared to preoperative values. Postoperative scores at 6 weeks and 12 weeks as measured using objective IKDC form (p=0.008 and 0.006, respectively), subjective IKDC form (p=0.04 and 0.03, respectively) and Lysholm form (p=0.02 and 0.01, respectively) were statistically significant improved as compared to preoperative values. All patients had a negative Lachman test at 6 and 12 weeks postoperatively. One patient had a positive grade I pivot shift test at 6 weeks postoperatively and two patients had a positive grade I pivot shift test at 12 weeks postoperatively. Differential anteroposterior laxity as measured with the Rolimeter arthrometer improved from 7.19±1.96 mm preoperatively to 0.28±0.45 mm and 0.13±0.34 mm, at 6 weeks and 12 weeks postoperatively, respectively. According to the objective IKDC form, 29 patients were normal or nearly normal (grade A and B) at 6 weeks postoperatively and 31 patients were normal or nearly normal at 12 weeks postoperatively. Subjective IKDC score improved from 47.72±17.18 preoperatively to 56.52±11.74 and 73.38±14.28 at 6 and 12 weeks postoperatively, respectively. Lysholm score improved from 63.44±23.01 preoperatively to 80.41±11.94 and 90.47±8.22 at 6 and 12 weeks postoperatively, respectively. Improved Tegner activity scores were present at 12 weeks postoperatively as compared with 6 weeks postoperatively, but still lower as compared to pre-traumatic scores. No significant complications were present in the current study group.

CONCLUSIONS

Combined ACL and ALL reconstruction is an effective surgical procedure, with improved postoperative clinical results and no significant short term complications. Longer follow-up is necessary in order to better evaluate the results of this procedure.

Unicameral bone cyst of the calcaneus - minimally invasive endoscopic surgical treatment. Case report

The role of arthroscopic surgery for the treatment of various orthopedic pathologies has greatly improved during the last years. Recent publications showed that benign bone lesion may benefit from this minimally invasive surgical method, in order to minimize the invasiveness and the period of immobilization and to increase visualization. Unicameral bone cysts may be adequately treated by minimally invasive endoscopic surgery. The purpose of the current paper is to present the case report of a patient with a unicameral bone cyst of the calcaneus that underwent endoscopically assisted treatment with curettage and bone grafting with allograft from a bone bank, with emphasis on the surgical technique. Unicameral bone cyst is a benign bone lesion, which can be adequately treated by endoscopic curettage and percutaneous injection of morselized bone allograft in symptomatic patients.

Venous thromboembolism following major orthopedic surgery

Venous thromboembolism (VTE) is an important complication of major orthopedic surgery (total hip arthroplasty-THA, total knee arthroplasty-TKA, hip fracture surgery-FHS) and is associated with significant morbidity and mortality. Despite this, not all patients receive an appropriate prophylaxis, often due to a disproportionate fear of bleeding complications. A challenge in the management of VTE prophylaxis is to balance the benefits of the treatment with the risk of bleeding. In this article, we review the latest guidelines recommendations regarding prevention of postoperative VTE in patients undergoing orthopedic surgery.