Investigating the Etiology and Diagnosis of Sacroiliac Joint Pain

The sacroiliac (SI) joint is often characterized as a large, auricular-shaped, and diarthrodial synovial joint. The SI ligamentous structure is more extensive in the dorsal part due to the absence of the posterior capsule, which functions as a connecting band between the sacrum and ilium. In addition, a network of muscles supports the SI joint that helps deliver regional muscular forces to the pelvic bones. The third and fourth decades of life promote senescent changes manifested by surface irregularities, crevice formation, fibrillation, and clumping of chondrocytes.

Finite Element Analysis of Customized Acetabular Implant and Bone after Pelvic Tumour Resection throughout the Gait Cycle

The aim of this paper is to investigate and compare the stress distribution of a reconstructed pelvis under different screw forces in a typical walking pattern. Computer-aided design models of the pelvic bones and sacrum made based on computer tomography images and individually designed implants are the basis for creating finite element models, which are imported into ABAQUS software. The screws provide compression loading and bring the implant and pelvic bones together. The sacrum is fixed at the level of the L5 vertebrae. The variants of strength analyses are carried out with four different screw pretension forces. The loads equivalent to the hip joint reaction forces arising during moderate walking are applied to reference points based on the centres of the acetabulum. According to the results of the performed analyses, the optimal and critical values of screw forces are estimated for the current model. The highest stresses among all the models occurred in the screws and implant. As soon as the screw force increases up to the ultimate value, the bone tissue might be locally destroyed. The results prove that the developed implant design with optimal screw pretension forces should have good biomechanical characteristics.

Reconstructive and restorative interventions at the proximal end of the thigh and pelvic bones in destructive pathological dislocation of the hip in children after hematogenous osteomyelitis

It is generally known that children tend to get injured more easily than adults. Moreover, these injuries they get in growing period may leave for long in the forms of disability. This paper is about reconstructive and restorative interventions at the proximal end of the thigh and pelvic bones in destructive pathological dislocation of the hip in children after hematogenous osteomyelitis. After hematogenous osteomyelitis of the proximal end of the femur, destruction of the head and neck of the femur is often observed, up to their destruction. The optimal age for surgical treatment of pathological dislocation of the hip, according to our data, is 4-5 years of age of the child, because by this time the process of ossification of the structures of the hip joint ends in most patients, and early surgical intervention often causes severe secondary deformities, up to their destruction.

Palisade Technique — the New Method for Open Reduction of Pelvic Fractures

Background. Restoration of the pelvic bones and acetabulum anatomy after fracture is an important criterion for functional outcome. Often, the reduction of flat pelvic bones is not an easy task. The authors proposed a method of reduction using a special support site of two or three 3.5 mm cortical screws for Matta bone forceps. The aim of the study was to demonstrate a new way of pelvic bones fragments reduction. Method Description. Three clinical situations are presented when a new method was used: 1) reduction of a pointed fragment of the acetabulum posterior column transverse fracture; 2) reduction of the acetabulum quadrilateral plate fragments with medial displacement and 3) reduction the rupture of the pelvic bones in the sacroiliac joint with the vertical displacement. Previously, a support site was created in one of the fragments from two or three not fully twisted 3.5 mm cortical screws. One of the Matta bone forceps branches was placed on the formed site, and the second on another fragment and the displacement was eliminated. Then the final osteosynthesis was performed with pelvic plates and/or cannulated screws according to the surgical plan. Before closing the wound the support site was removed. Conclusion. The proposed method has shown its effectiveness during the reduction of the flat bones fragments, as it allows you to compress the spongy bones of the pelvis with a thin cortical layer stronger, compared with existing methods during which fragments splitting and pulling out anchor screws in the branches of reduction forceps can occur. The developed method of reduction demonstrated convenience and reliability.

Treatment of Unstable Injury of Pelvic Bones in Pregnant (Case Report)

Summary. There is no doubt in the relevance of the problem of treatment of patients with unstable fractures of pelvic bones, since these injuries involve a threat to the patient's life in the early period and often lead to disability in the future. This article presents a rare case of treatment of a patient with an unstable pelvis injury, while being 16 weeks pregnant. Patient A., born 1993, was admitted after a road accident injury. The examinations included: X-ray, CT, ultrasound, and gynecologist consultation. The patient was diagnosed with closed bilateral fracture of the pubic and ischial bones with displacement; rupture of the left sacroiliac joint with the boundary fracture of the sacrum (61-С1.3 by the Tile-AO-ASIF classification). The patient was 16 weeks pregnant. The surgery – open reduction and extramedullary metalosteosynthesis – was performed at the 9th day after the injury. The patient was discharged to outpatient treatment at the 12th day after the surgery. She started walking on crutches 3 weeks after the surgery; no additional support was needed since 1.5 months after the surgery. The patient gave birth at 39 weeks by surgical intervention (caesarean section). The baby's condition was assessed as 8 according to the Apgar scale. At the control examination 10 months after the surgery, musculoskeletal function of the patient was fully restored.

Application of computer stabilometric technologies with biofeedback in patients with lumbosacral pain

Introduction. Low back pain is one of the most common sufferings of modern humans. In developed countries, such manifestations are a serious medical and economic problem. Lumbosacral pain in many cases is caused by the occurrence of somatic dysfunction of the bones of the pelvis and sacrum. The main methods of treatment are prescribing drug therapy and non-drug treatment. Today, osteopathic techniques are highly effective for the diagnosis and correction of somatic dysfunctions of the pelvic region. Such treatment in patients with pain in the lower back helps to reduce pain and restore the functional state of patients. Equally important are computer technologies with biofeedback (BFB) with the possibility of effective correction of proprioceptive innervation and muscle-tonic syndromes. The stabilometric platform allows you to register the parameters of the static-dynamic function of support and balance maintenance. The resulting changes in the position of the sacrum and pelvic bones create a distortion of proprioceptive somatosensory afferentation, postural tonic reflexes of the axial skeleton and limbs are blocked, the sequence of activation of the motor units of the locomotor apparatus is disrupted, the mechanisms for maintaining support and walking change. The aim — to study the effectiveness of using a stabiloplatform with biofeedback in the diagnostic mode of coordinating and static-dynamic disorders in patients with somatic dysfunctions of the pelvic and sacral bones in a training mode in combination with osteopathic correction for pain in the lumbosacral region. Materials and methods. In a prospective controlled study in patients with lumbosacral pain with somatic dysfunctions of the pelvic bones, the results of treatment were analyzed in 66 patients aged 23–56 years. Diagnosis of dysfunctions of the iliac bones was carried out according to the generally accepted rules of osteopathic examination — osteopathic examination and determination of the position of bone landmarks. The observed patients were divided into groups and subgroups depending on the type of dysfunction. The main group consisted of patients with clinical and osteopathic signs of somatic dysfunctions of the pubic bone and ilium. The patients were followed up for 14 days. The observation and treatment program included: osteopathic correction of diagnosed somatic dysfunction and stabilometric examination (3 control points) with a training regimen (3 sessions). Stabilometric testing was carried out at the stage of diagnosis and selection of patients for inclusion in the study. Re-examination was carried out 14 days after the moment of treatment. The clinical effect was compared with the results of stabilometric tests. In addition, the intensity of the pain syndrome and the severity of muscle-tonic reactions were analyzed. According to the results of the test regime, the stability in the «eyes open» and «eyes closed» modes was assessed. Results. A decrease in the intensity of pain is achieved, normalization of the balance in axial parameters with an improvement in the function of coordination of movements is noted. The Romberg coefficient decreases most significantly in somatic dysfunctions of the iliac bones in the position of anterior rotation without a significant difference in lateralization: on the right, a decrease from 570 ± 12% to 295 ± 23% and on the left from 550 ± 22 to 260 ± 25% (p <0.05). Conclusion. In the event of somatic dysfunctions of the pelvic bones with lumbosacralgia, the combined use of osteopathic correction and physiotherapy exercises on a stabiloplatform in a training mode with biofeedback has a significant effect. The training regimen promotes pain regression in acute and chronic pain. The best results have been achieved in patients with dysfunction in the anterior rotation of the ilium. Stabilometric testing in the diagnostic mode allows you to obtain objective data on the nature of imbalance and imbalance. The training regime ensures the achievement of a therapeutic result in 3 sessions and can be used in inpatient and outpatient conditions of medical institutions.

Correction of a rare malformation of the penis in two boys with a single cavernous body and classical bladder extrophy

Bladder extrophy - is a difficult malformation for the treatment. Aplasia of one of the cavernous bodies of the penis is an extremely rare pathology. In the available literature, we did not meet reports of correction of bladder extrophy in children with a single cavernous body of the penis.From 1990 to 2020, 545 children (364 boys) with extrophy have been repair. Two (0.5 %) boys only had a classic bladder extrophy combined with the aplasia of one cavernous body. The first patient with classical extrophy and multiple malformations (fingers of the right hand, fingers of the right foot, aplasia of the left kidney, left cavernous body, left testicle and hypoplasia of the left half of the scrotum) the penis with the single cavernous body on the right was somewhat thinner, but formed anatomically correctly with the presence of a urethra and closed prepuce. The primary closure of the bladder was performed with bilateral iliac osteotomy and the joint of pelvic bones at the age of 1 year. The patient had the anatomically properly formed bladder sphincter and urethra, penile correction was not required. After the operation, urinary continence had been achieved.The second boy was with classical extrophy and epispadia of the single cavernous body, he was given stage treatment. At the age of 5 days (2004) the primary closure of the bladder and the connection of the pelvic bones were performed. At the age of 4 years (2008) the formation of the urethra was carried out, the correction of the dorsal deformation of the single cavernous body by excision of the chord and the application of multiple superficial cross-cutting on the tunica albuginea. Bladder neck plastic by Kelly technique in combination with bilateral osteotomy of pelvic bones was performed at the age of 7 years in (2011). The boy of 15 years (2019) had a bladder volume of 350-400 ml. Dry 4-5 hours. Urinate freely with a wide stream. Then a two-stage plastic of the distal urethra was performed. We used the Bracka technique with augmentation of the glans penis and implantation a free graft of the mucous lip. We achieved a good result.Using modern penile correction technologies help to socially adapt patients with rare and difficult malformations.

Functional anatomy of the abdominal wall

This chapter describes the functional anatomy of the abdominal wall. The layers of the abdominal wall consist of skin, superficial fascia, deep investing fascia, muscles, and inner fascial layers: transversalis fascia, extraperitoneal fascia, and peritoneum. The layers are variable in different areas of the abdomen. Skeletal support for the abdomen is derived from the lumbar vertebrae, the superior parts of the pelvic bones, and the bony parts of the inferior thoracic skeleton: the lower ribs and their costal cartilages and the xiphoid process.

Relapses of urethral strictures associated with a pelvic ring fracture and osteosynthesis: the features of treatment and prevention

Introduction. Pelvic ring fracture with complex bone fragments displacement is associated with the urethral distraction injury in about 10% of cases. Emergency care for these patients includes the provision of trauma management and urinary diversion followed by delayed urethroplasty.Purpose of the study. To determine the effect of extramedullary osteosynthesis in a pelvic ring fracture on the outcome of treatment in patients with post-traumatic urethral strictures.Materials and methods. The study included 17 patients with post-traumatic urethral strictures associated with pelvic ring fractures (Types B, C). The average age of the patients was 35.8 ± 10.2 (19 - 61) yrs. All patients underwent submerged osteosynthesis and cystostomy drainage as an emergency. Localization of strictures: 10 (58.8%) - membranous, 7 (41.2%) - bulbo-membranous. Length of strictures: 1.47 ± 0.5 (0.5 - 2.5) cm. Post-traumatic period: 6.6 ± 1.3 (4 - 10) mo.Results. All patients underwent anastomotic urethroplasty. No early postoperative complications were identified. Spontaneous urination was restored by 14 - 15 days in all patients. Early urethral stricture relapses were revealed in 9 (52.9%) patients during 3-mo follow-up. These patients underwent removal of the metal structures fixing the pelvic bones. Repeated urethroplasty was performed a month later. Subsequent relapses of urethral stricture were not detected in any of 17 cases with a median follow-up of 28 (12 - 128) mo.Conclusion. Surgical treatment of urethral strictures associated with a pelvic ring fracture and osteosynthesis is advisable after removal of the metal structures fixing the pelvic bones. This is since the excessed retropubic screws protrusion (> 0.2 - 0.3 mm) is associated with a large area of periurethral fibrous inflammation and causes high relapse risks of stricture disease (52.9%) in the case of urethral surgery preceding the removal of metal structures.