Habitual Dislocation Research Articles

Restoring stability - 4 in 1 quadriceps plasty for habitual patella dislocation in a ten-year-old child: a case report

Complex clinical and surgical challenges accompany both congenital or fixed dislocations and obligatory or habitual patellar dislocations. Habitual dislocation of the patella is the most severe type of patellar instability and frequently call for surgical intervention. Various surgical procedures have been documented to address habitual patellar dislocation. Since no approach is 100% effective, a combined approach of techniques is recommended for the surgical treatment of habitual patellar dislocation. This article aims to describe the 4-in-1 quadriceps plasty procedure used to stabilize a 10-year-old child's fixed and habitual patellar dislocation.

The vastus medialis oblique compensates in current patellar dislocation patients with the increased femoral anteversion

PurposeThe purpose of this study was to investigate whether the vastus medialis oblique (VMO) muscle compensates in patellar dislocation (PD) patients with the increased femoral anteversion angle (FAA).MethodsBetween 2021 and 2024, we included 60 patients with recurrent PD (RPD group). Inclusion criteria were at least two episodes of PD, as well as complete CT scans of the knee and hip. Exclusion criteria included traumatic or habitual dislocation, previous knee surgery, etc. Of these patients, 30 with excessive FAA (≥ 30°) were assigned to the A group, and 30 without excessive FAA (< 30°) to the B group. A control group of 120 patients without patellofemoral disorders was also included (C group). The cross-sectional areas of the VMO and vastus lateralis muscle (VLM) were measured 20 mm above the patella on CT scans, and the VMO/VLM area ratio was calculated. The correlation between FAA and the VMO/VLM ratio was analyzed.ResultsThe RPD group had a significantly larger FAA (15.0 ± 1.9° vs. 30.1 ± 9.6°, P = 0.040) and a smaller VMO/VLM ratio (4.2 ± 1.5 vs. 3.5 ± 1.0, P = 0.014) compared to the C group. Within the RPD group, the A group had a higher VMO/VLM ratio than the B group (4.0 ± 1.1 vs. 3.0 ± 0.7, P = 0.029). The B group’s VMO/VLM ratio was lower than that of the C group (3.0 ± 0.7 vs. 4.2 ± 1.5, P = 0.004). However, there was no significant difference in the VMO/VLM ratio between the A group and the C group. The VMO/VLM ratio showed a moderate positive correlation with FAA in the RPD group, with a correlation coefficient of r = 0.4 (P = 0.012), indicating a statistically significant relationship between the two.ConclusionPatients with recurrent PD showed a smaller VMO/VLM ratio compared to controls. Increased FAA was correlated with compensatory thickening of the VMO and a higher VMO/VLM ratio in PD patients. This suggests that increased FAA may drive biomechanical adaptations in the quadriceps, stabilizing the patella. Clinicians should consider changes in FAA when assessing and treating PD.Level of evidenceLevel III.

Four-Direction Procedures Involving Tibial Tubercle Osteotomy for Habitual Dislocation of the Patella

Four-Direction Procedures Involving Tibial Tubercle Osteotomy for Habitual Dislocation of the Patella

Allotendoplasty in Treatment of Habitual Patella Dislocation in Adults

Background. Habitual dislocation of patella is a congenital disease that manifests in early childhood or adolescent age and requires surgical treatment. In case this condition has not been rectified timely, the congenial patellar luxation develops the properties of a habitual dislocation accompanied by pain syndrome and osteoarthrosis development in the patellofemoral and knee joints. In most cases reconstructive surgery is used for this disease treatment; it is aimed at the strengthening of the knee joint interval compartment, with the formation of a fibrous graſt or a vertical strip of it, which are moved to the knee joint outside compartment and fixed to adjacent tissues with sutures. However, such surgery is possible only in case of preserved anatomic structures of the knee medial compartment. In adult patients, aſter multiple patellar dislocations, the interval joint capsule and medial aponeurosis lose their normal structure, become weakened, strained, and loose. That is why the patient’s own tissues from that area cannot be used for reconstructive surgery.The purpose of the study is to develop the new low-traumatic method of treatment for habitual dislocation of kneecap in adult patients to ensure its reliable stabilization as related to the joint surface on distal femoral epimetaphys, and to prevent patella dislocation relapse.Material and methods. Surgery technique consists of the lateral release of knee joint, mobilization of patellar ligament and its excision together with the fragment of tibial tuberosity osseous. On 1.5–2.0 cm medially from the area of own patellar ligament harvesting in tibia epimetaphys, the new bed with the similar form and shape is formed, and the excised tibial tuberosity fragment with patellar ligament is introduced there and fixed with a Cancellous screw.The area of own patellar ligament harvestingis filled up with autogenous osseous tissue taken from the medial part of tibia epimetaphys when forming the new bed for the excised tibial tuberosity fragment. Transversal tunnelis formedin the quadriceps tendon above the patella; allotendonis pulledvia this tunnel. The allotendon ends are sutured together, thus forming the duplication, analogous to the ligament, and fixit, stretched to “pes anserinus” of the shin onits anterior-interior surface.Conclusion. The new technology of allotendoplasty for the treatment of habitual kneecap dislocation in adult patients facilitates the surgical technique, additionally strengthens medial compartment tissues of the knee, reliably stabilizes the patella as related to its joint surface on distal femoral epimetaphys, eliminates patella dislocation relapse, normalizes the knee and patellofemoral joints functioning by preventing osteoarthrosis progression in them.

Indications of Arthroscopy in the Treatment of Patellar Instability in Children.

Purpose Understanding the relevant risk factors for patellar instability and the clinical and radiographic testsnecessary to determine optimal treatment. This case series intends to evaluate arthroscopic indications in the treatment of patellar instability in children. Methods From 2013 to 2021, 33 patients (seven to 16 years of age) with 35 knees sustaining first-time dislocation with loose bodies, recurrent dislocation or subluxation, and habitual dislocation were arthroscopically operated on according to the flow chart. Periods of follow-up were two to 10 years (avg. 5.5 years). Follow-up assessment included the recurrence, complications (joint stiffness and excessive reduction), and the final function outcomes by using the Kujala score. Results Among 35 knees, there were two (5.7%) first dislocations, 30 (85.7%) recurrent dislocations, and three (8.6%) habitual dislocations, lateral release 27/35 (77.1%), medial reefing 23/35 (65.7%), reconstruction of the medial patellofemoral ligament(MPFL) 12/35 (34.3%). The major complication was a knee of extensive stiffness after medial reefing and lateral release. Recurrence was in 4/35 (11.4%) of knees, not correlated to lateral release (p=0.21), medial reefing, or reconstruction of MPFL (p=0.07); in about 23 knees of medial reefing, recurrence was significantly correlated to number of knots (p=0.045). The final functional results according to Kujala were 88-100 (avg. 95.5). Conclusions This study showed the role of arthroscopy in both medial reefing and reconstruction of MPFL in children by low recurrence rate and high Kujala score at final follow-up. There was no significant correlation between recurrence and the procedures as arthroscopic indications counted on the flow chart.

Soft Tissue Lengthening for Flexion Dislocation of Patella.

Obligatory dislocation of the patella (also known as habitual dislocation) is a rare subset of patellofemoral instability in which the patella dislocates every time the knee is flexed. The problem arises due to contracture of the quadriceps muscles. Soft tissue lengthening procedures such as quadriceps tendon lengthening are the mainstay of treatment, in contrast to medial patellofemoral reconstruction (MPFL-R) for the more common recurrent lateral patellar dislocation. The current review explores the existing literature surrounding the pathophysiology and treatment strategies for this unique cause of knee instability. Flexion dislocation of the knee often presents in children when they begin to walk. It is also termed obligatory or habitual because the patella dislocates laterally with each flexion and extension cycle of the knee. In contrast to other forms of patellar dislocation, the displacement is painless in obligatory dislocation. Likewise, the underlying biomechanical cause of this issue is related to contracture of tissues lateral to the patella rather than disruption of medial soft tissues as seen in recurrent/traumatic dislocation or subluxation of the patella. A number of procedures have been described for management of obligatory dislocation of the patella, with the general consensus that a combination of procedures including release/lengthening of the proximal lateral soft tissues as a critical component for a successful outcome. Soft tissue release/lengthening has been performed for over 50years to treat obligatory dislocation of the patella. This procedure must be used in combination with other proximal and distal reconstructive with careful intraoperative assessment of knee flexion and patellar tracking for satisfactory outcomes. Further research using standardized outcome measures is needed to identify the optimal step-wise approach in treatment of obligatory patellar dislocation.

Clinical heterogeneity of polish patients with KAT6B-related disorder.

Say-Barber-Biesecker-Young-Simpson (SBBYSS) variant of Ohdo syndrome is a rare, autosomal dominant and clinically heterogenous disorder, caused by pathogenic variants in the KAT6B gene located on chromosome 10q22.2. KAT6B encodes a highly conserved histone acetyltransferase belonging to the MYST family. Currently, diseases caused by pathogenic variants in KAT6B (KAT6B-related disorders) comprise two allelic entities: SBBYSS variant of Ohdo syndrome and genitopatellar syndrome (GPS). Increase in the number of cases with overlapping GPS/SBBYSS phenotype which makes it necessary to redefine this group of phenotypes as KAT6B-related disorders or KAT6B spectrum disorders. Individuals with SBBYSS usually present with facial abnormalities, hypotonia, joint laxity, feeding problems, and long thumbs/great toes. This syndrome also typically involves skeletal problems including patellar hypoplasia/agenesis. Here we report six SBBYS syndrome patients with the same dysmorphic features but a different course of the disease. One known and five novel KATB6 pathogenic variants were identified by molecular diagnostics using Next Generation Sequencing (NGS). We present a detailed phenotypic analysis of six individuals with KAT6B-related disorders, in whom a heterozygous pathogenic variant in KAT6B gene was found. In all of our patients facial dysmorphism as well as developmental and speech delay were present. Additionally, all but one patients presented with hypotonia, ocular abnormalities and long thumbs. Most of our probands showed blepharophimosis and skeletal (mainly knee) defects. Contrary to previously reported severe patellar defects (hypoplasia/agenesis) anomalies presented by our patients were less severe (dysplasia, habitual dislocation, subluxation) referring to KAT6B-related disorders. While most of the anomalies found in our patients comply with SBBYSS criteria, phenotypic differences in our probands support a broader spectrum of the disease phenotype. To establish the range of this spectrum, a detailed analysis of clinical variability among patients with SBBYSS requires further investigation.

Patellofemoral joint disorders

Background: Patellofemoral joint problems refer to a spectrum of conditions affecting the patellofemoral joint, which is the joint between the patella and femur. These conditions can cause pain and instability in the knee and affect an individual’s ability to perform daily activities. Patellofemoral joint problems commonly cause knee pain, particularly among young athletes and physically active individuals. This review article discusses current patellofemoral joint problems, including their epidemiology, pathophysiology, diagnosis, and management.Current Concepts: Patellofemoral joint problems are presented as clinical symptoms of pain and instability. Dividing the diagnostic criteria into anterior knee pain, patella instability, and patellofemoral arthritis is useful. Anterior knee pain is diagnosed after excluding possible causes. Patellar instability is classified into recurrent dislocation, habitual dislocation (extension and flexion types), and permanent dislocation. Moreover, patellar instability can progress to the final stage of patellofemoral arthritis. Thus, patellar instability should be treated according to the Dejour criterion, and patellofemoral arthritis treatment requires artificial joint replacement surgery.Discussion and Conclusion: The pathological mechanism of patellofemoral joint problems still needs to be properly established, and multifactorial causes make it difficult to treat patellofemoral joint problems. Accurate diagnosis is considered an essential factor for successful treatment.

Poster 269: 4-in-1 Quadricepsplasty for Habitual and Fixed Lateral Patellar Dislocation in Children

Poster 269: 4-in-1 Quadricepsplasty for Habitual and Fixed Lateral Patellar Dislocation in Children

Differences in collagen types in the semitendinosus, quadriceps, and patellar tendons: A report using samples from an 11-year-old patient

BackgroundThis study aimed to determine the differences in the proportions of types I and type III collagen in the semitendinosus tendon (ST), quadriceps tendon (QT), and patellar tendon (PT), which are frequently used as autografts for anterior cruciate ligament (ACL) reconstruction. MethodsOrthopedic surgeons diagnosed habitual dislocation of the left patella and surgically treated an 11-year-old boy. Medial patellofemoral ligament reconstruction, medial patellar tibial ligament reconstruction, and arthroscopic lateral release were performed simultaneously. Tissue samples obtained during treatment that were no longer necessary were used as samples for this study. The samples were fixed, paraffin-embedded, and immunostained for type I and type III collagen. Stained samples were observed under a confocal microscope and evaluated visually and quantitatively to determine the percentages of type I and type III collagen. ResultsVisually, the ST had a higher percentage of type III collagen than the PT and QT. The QT and PT were similar in appearance; both consisted mostly of collagen type I. Quantitative evaluation using images showed that the PT comprised 100% type I collagen. The QT comprised 1% type III collagen. The ST comprised 34% type III collagen. ConclusionIn this patient, the QT and PT had higher percentages of type I collagen, which is considered physically strong. Type III collagen, which is considered physically weak, was most common in the ST. These factors may be associated with the high re-injury rates after ACL reconstruction using the ST for physically immature patients.

MPFL Reconstruction Combined with a Modified Elmslie-Trillat Procedure for Recurrent Patellofemoral Instability.

Several combined procedures have been reported for treating recurrent patellofemoral instability (RPI) with various types and severity of morphological abnormalities, but none have identified absolute threshold values as indications for surgery. We performed medial patellofemoral ligament (MPFL) reconstruction combined with a modified Elmslie-Trillat (ET) procedure on 24 knees (10 male and 11 female patients) to treat RPI with morphological abnormalities corresponding to elevated tibial tubercle-trochlear groove (TT-TG) distance, significant patella alta, and trochlear dysplasia. The inclusion criteria were RPI with morphological abnormalities corresponding to one or more of the following: sulcus angle > 160 degrees, trochlear dysplasia of Dejour classification C or D, Caton-Deschamps index > 1.5, lateral shift ratio > 50%, congruence angle > 15 degrees, or TT-TG distance > 20 mm, including habitual dislocation of the patella. Skeletally immature patients and those with congenital dislocation of the patella were excluded. The Kujala score, International Knee Documentation Committee subjective score, Knee Injury and Osteoarthritis Outcome score (KOOS), and each item of the KOOS improved significantly after surgery. Patellar apprehension sign was present preoperatively in all cases, but all disappeared postoperatively. No instance of postoperative redislocation was observed. On radiographic examination, the mean Q angle, tilting angle, lateral shift ratio, congruence angle, Caton-Deschamps index, Insall-Salvati index, and TT-TG distance improved significantly after surgery. There were no significant differences in sulcus angle after surgery. These results suggest MPFL reconstruction combined with a modified ET procedure provides satisfactory outcomes based on radiological and clinical evaluations for RPI with morphological abnormalities corresponding to elevated TT-TG distance, significant patella alta, and trochlear dysplasia.

4-in-1 Quadricepsplasty for Habitual and Fixed Lateral Patellar Dislocation in Children.

Habitual and fixed patellar dislocations represent extreme forms of patellar instability and can lead to significant functional loss. The underlying complex pathoanatomy of a laterally positioned and shortened extensor mechanism poses challenges in its management. The purpose of our study was to evaluate the anatomic risk factors and outcomes of a 4-in-1 quadricepsplasty (wide lateral releases, Insall proximal tube realignment, Roux-Goldthwait patellar tendon hemi-transfer, and step-wise quadriceps lengthening) for stabilization of habitual and fixed patellar dislocation. In a retrospective study, all patients with habitual and fixed patellar dislocation who underwent 4-in-1 quadricepsplasty and had a minimum 2-year follow-up were identified. Preoperative magnetic resonance imagings were evaluated for the presence of anatomic risk factors. As a prospective part of the study, patient-reported outcomes were collected using validated instruments including Pedi-IKDC, HSS-Pedi FABS activity score, BPII 2.0 score, Kujala score, and KOOS score. Seventeen knees (12 patients) formed the study cohort. Twelve knees had habitual dislocation (9 in extension and 4 in flexion) and 5 had fixed dislocation. Mean age was 9 years. 6/17 (35.3%) knees were associated with syndromes. On magnetic resonance imaging, trochlear dysplasia was the most common anatomic risk factor present in 15/17 (88.2%) knees. 13/17 (76%) knees had presence of 2 or more risk factors. At the mean follow-up of 43.3 months, the mean Pedi-IKDC score was 88.1, the HSS-Pedi FABS activity score was 15.6, the BPII 2.0 score was 78.2, the Kujala score was 90, KOOS score was 93.9, and overall patient satisfaction score was 83.3. For complications, 3/17 knees (17.6%) had recurrent patellar instability, 1 knee had postoperative stiffness that required manipulation under anesthesia and 1 knee had a superficial wound infection. Most patients with habitual and fixed patellar dislocation present during the first decade of life. There are several underlying anatomic risk factors, the most common being trochlear dysplasia and patellar tilt. The 4-in-1 quadricepsplasty technique provides reliable patellar stabilization, satisfactory clinical results, and acceptable patient-reported outcomes at a minimum 2-year follow-up, with a 17.6% redislocation rate. Level IV.

Surgical Treatment of Habitual Temporomandibular Joint Dislocation Caused by Aging

Temporomandibular joint dislocation occurs not only in the elderly but in all age groups. However, in recent years, the number of elderly people with various underlying diseases such as dementia, cerebral infarction, and Parkinson’s disease has increased, and the number of elderly people who suffer habitual dislocation of the temporomandibular joint has also increased. It is considered that there are potential patients in special nursing homes and health care facilities for the elderly, and thus a large-scale fact-finding survey is desired. There is a consensus that non-invasive therapy is the first choice for the treatment of habitual temporomandibular joint dislocation. Currently, non-invasive treatments as well as invasive treatments such as the mandibular condyle anterior motion inhibition method and the mandibular condyle reduction method are being performed at many facilities for treating habitual temporomandibular joint dislocation. It is our duty as surgeons to choose minimally invasive surgery as surgical therapy. Therefore, there is an urgent need to accumulate cases and determine trends through joint research with other institutions and to select minimally invasive surgery.

ОРГАНИЗАЦИОННЫЕ И ТЕХНОЛОГИЧЕСКИЕ ОСОБЕННОСТИ ПРИ ЛЕЧЕНИИ ПАЦИЕНТОВ С ВЫВИХОМ ПЛЕЧА (ОБЗОР ЛИТЕРАТУРЫ)

Introduction. Shoulder dislocation currently continues to be the most common among dislocations of all localizations - about 45%. Over the years of observation, this indicator has been decreasing in different countries. More than 50 methods of correcting shoulder dislocation have been described. Methods of correction and organizational features of the treatment of injured are the subject of discussions on scientific forums and on the pages of specialized magazines. The review is dedicated to the analysis of organizational and technological features shoulder dislocation. Results. The existing methods of correcting shoulder dislocation can be divided into three groups: lever; physiological methods based on muscle stretching (traction); methods involving pushing the head of the humerus into the joint cavity (push methods). Despite the many ways, the recurrence shoulder dislocation is noted in almost every second victim. Most often, relapse is stated by young patients. Many specialists note the shortcomings of the methods of correcting the primary traumatic shoulder dislocation as in terms of the choice of the method of correction, and in terms of the organization of the therapeutic and diagnostic process. Among the complications of shoulder dislocation reduction, instability of the shoulder joint, habitual dislocation, restriction of shoulder movement are most often verified. The review analyzes the main methods of conservative correction of shoulder dislocation, provides data on the frequency and structure of complications. Separately, information about anesthesia for the reduction of shoulder dislocation is noted. The features of treatment of injured with shoulder dislocation in outpatient conditions and during hospitalization are shown. Presented overview the literature allows you to orientate yourself in the state of the issue of conservative correction of shoulder dislocation today.

Comparative evaluation of the sensitivity and specificity of clinical and magnetic resonance methods of assessing damage to the fibrocartilage lip in pediatric patients with traumatic instability of the shoulder joint

BACKGROUND: The shoulder joint provides the greatest degree of freedom in movement, making it one of the most unstable and frequently dislocated joints, accounting for almost 50% of large-joint dislocations. Recurrent instability of the shoulder joint develops in 96%100% of children and adolescents, making it important to accurately diagnose possible anatomical causes of persistent pain syndrome violating the habitual function of the shoulder. At the same time, the symptoms of intra-articular injuries of the shoulder joint are often vague, and a definitive diagnosis cannot be made without the use of instrumental research methods.&#x0D; AIM: To compare the diagnostic value of clinical examination and magnetic resonance imaging in detecting intra-articular pathology in adolescents with anterior instability of the shoulder joint of traumatic origin.&#x0D; MATERIALS AND METHODS: This retrospective study included parameters of clinical examination and instrumental methods of investigation of 72 children (72 shoulder joints) with habitual shoulder dislocation of traumatic origin. The age of the examined persons ranged from 13 to 17 years.&#x0D; Magnetic resonance, clinical, arthroscopic, and statistical methods of research were employed in this work. The arthroscopic method was considered as a reference research method for assessing the sensitivity and specificity of clinical examination and magnetic resonance imaging. Sensitivity and specificity were evaluated, followed by an assessment of the prognoses of positive and negative results for MRI data and clinical research methods.&#x0D; RESULTS: The MRI data was characterized by a significantly greater sensitivity and specificity in detecting lesions (95.4% and 71.4%) than those of clinical examination (79.1% and 60%). Thus, MRI is better at detecting damage to the fibrous-cartilaginous lip in traumatic instability in adolescents than clinical examination.&#x0D; CONCLUSIONS: In our opinion, for the most reliable preoperative planning of surgical treatment of children, a full-fledged clinical examination should be used and data from instrumental research methods should be included, considering the advantages and disadvantages of each method.

AGENESIS OF MEDIAL PATELLOFEMORAL LIGAMENT (MPFL) WITH HABITUAL PATELLAR DISLOCATION IN ADOLESCENT WOMAN WITH CEREBRAL PALSY – A CASE REPORT

Background: The current treatment for habitual dislocation and nonoperative treatment failure is surgical therapy. Therefore, this study describes chronic patella dislocation's comprehensive evaluation and management in an adolescent woman with cerebral palsy (CP).Case Report: A 15 years old female patient has suffered knee pain for almost three years. Furthermore, the physical examination revealed positive adam's forward bending test and left knee cap dislocation with positive patellar J-sign at 90°. Radiologic examination of the vertebrae and left knee shows scoliosis left thoracolumbar curved with 43 cobb angle and patellar shift. The patient was then diagnosed with habitual patellar dislocation, spastic diplegia type of CP, and neuromuscular scoliosis, consulted to the pediatric department, and then planned for medial patellofemoral ligament (MPFL) reconstruction. During the surgical examination, we discovered the MPFL Agenesis. Finally, lateral release and plication of the medial retinaculum were selected for surgery and planned to receive a Boston brace for scoliosis. After six weeks of follow up, the patient shows a reduction in pain.Discussion: Lateral release and MPFL reconstruction for patellar stabilization generate better results. However, in this case, the absence of the medial patellar facet and the medial femoral condyle enhances Lateral release and plication of the medial retinaculum more preferable to fixate the left patella and improve functional limitation.Conclusion: Comprehensive and immediate treatment for a patient with habitual patella dislocation and other predisposition diseases increases the chances of success.

4-in-1 Quadricepsplasty for Fixed and Habitual Dislocation of Patella

Fixed and habitual dislocations of patella represent the most severe forms of patellar instability and frequently require surgical intervention. Isolated medial patellofemoral ligament (MPFL) reconstruction, which has been the cornerstone of treatment for episodic patellar dislocation, is inadequate to address such complex instability patterns. The purpose of this report is to describe the 4-in-1 quadricepsplasty technique for stabilization of fixed and habitual dislocation of patella. The 4 components of quadricepsplasty are lateral retinacular releases and lengthening, Roux-Goldthwait patellar tendon hemi-transfer, modified Insall’s proximal “tube” realignment, and quadriceps slide-lengthening.

Professor Alexander E. Rauer – one of the founders of maxillofacial plastic surgery in the USSR (on the 150&lt;sup&gt;th&lt;/sup&gt; anniversary of birthday)

The paper presents the main years of the life and scientific work of the prominent Russian surgeon and scientistinnovator Professor A.E. Rauer (1871–1948). Little-known milestones from the scientist's life are marked. The paper analyzes the fact that from 1922 to the end of life (26 years) Alexander Eduardovich headed the maxillofacial department of the Central Institute of Traumatology and Orthopedics (CITO). Since 1932, Professor A.E. Rauer was the head of the Department of Maxillofacial Surgery of the CIU, organized by him on the basis of the maxillofacial department of the CITO (Moscow). It is noted that Alexander Eduardovich is the author of about 100 scientific works. He summarized all his rich experience in his final work “Plastic Surgery on the face”, awarded in 1946. The Stalin Prize. The range of scientific and surgical interests of A.E. Rauer was wide and diverse. His main works were devoted to the problems of maxillofacial surgery. Rauer proposed a number of valuable ways to eliminate facial disfigurement, which have become widespread (for example, oblique osteotomy for ankylosis of the jaws, surgery for habitual dislocations, plastic surgery of through facial defects, etc.). Under the leadership of Alexander Eduardovich, the clinic also developed methods of plastic surgery for fan-shaped neck scars after thermal injuries and restoration of the pharyngeal arches with soft palate defects. It is noted that he worked a lot on plastic surgery of other organs and proposed methods of interventions for congenital malformations of the bladder, limbs, etc. During the Great Patriotic War, A.E. Rauer introduced into practice a method of treating granulating surface wounds by forming secondary plate ligatures. It is shown that after him there were many worthy students who continued his work on the further development of maxillofacial surgery, which has become an important and necessary branch of clinical medicine.

Outcomes of medial patellofemoral ligament reconstruction and tibial tubercle osteotomy in syndromic adolescents with patellar dislocation

BackgroundTreatment of congenital and habitual dislocation of the patella in syndromic adolescents can be difficult due to accompanying soft-tissue and/or osseous abnormalities often present in the knee. The aim of this study was to report the results of surgical treatment of congenital and habitual patellar dislocation with medial patellofemoral ligament (MPFL) reconstruction and tibial tubercle osteotomy (TTO) in adolescents with an underlying syndrome. MethodsSyndromic adolescent patients with congenital or habitual patellar dislocation treated with MPFL reconstruction and TTO between 2005 and 2019 with a minimum of one year of follow-up were identified. Demographic, clinical, radiographic, and surgical data were recorded, and any complications were noted. Kujala and Lysholm scores were used to quantitate knee function. ResultsSeventeen knees in 11 patients met the criteria for inclusion. The mean age at operation was 14.8 years (range, 13.3–18.3 years). Patients were identified as having Ehlers-Danlos (four), Down (two), trichorhinophalangeal (one), McCune-Albright (one), Klippel-Feil (one), and generalized joint hypermobility (two) syndromes. The mean follow-up was 2.2 years for each individual knee (range, 1–5.9 years). The mean Kujala score increased from 56 ± 10 preoperatively to 86 ± 6 at the most recent postoperative visit (p < 0.001). The mean Lysholm score increased from 53 ± 10 preoperatively to 85 ± 7 at the most recent postoperative visit (p < 0.001). Knee flexion increased significantly from 117° ± 15° preoperatively to 154° ± 13° postoperatively (p < 0.001). However, knee extension was no different pre- and postoperatively (4° ± 8° vs. 1° ± 4°, respectively, p = 0.2). ConclusionsCongenital and habitual patellar dislocation in adolescent-aged patients with an underlying syndromic diagnosis can be successfully treated with MPFL reconstruction combined with TTO.

Strengthening of joints for habitual dislocation by means of fascial free plasty of Joseph (Zentr. F. Chir., 1926, No. 3)

Strengthening of the joints for the usual dislocation by means of fascial free plasty according to Josher'y was successfully performed in 4 cases on the shoulder and in 1 - on the patella by Girgolav (Zentr. F. Chir., 1926, No. 3).