We aim to investigate the practicality of virtual reality (VR) technology integrated with femoral head reduction plasty as a treatment strategy for coxa plana, and to evaluate its clinical effectiveness.
Three male patients with coxa plana, aged between 15 and 24 years, were the subjects of research conducted between October 2018 and October 2020. Virtual reality (VR) technology facilitated preoperative surgical planning for the hip joint. A 3D model of the hip joint was constructed from 256 CT slices, enabling simulation of the surgical procedure and assessment of the relationship between the femoral head and acetabulum. The surgical plan, as determined by preoperative considerations, called for a reduction plasty of the femoral head achieved by surgical dislocation, in addition to lengthening of the femoral neck and a periacetabular osteotomy. C-arm fluoroscopy definitively demonstrated the diminished femoral head osteotomy size and the reduced rotation angle of the acetabulum. Post-operative radiological evaluations assessed the healing of the osteotomy. Both pre- and post-operative Harris hip function scores and VAS scores were meticulously recorded. Using X-ray film analysis, the femoral head's roundness index, center-edge angle, and coverage were determined.
Following successful completion of three operations, the operation times clocked in at 460, 450, and 435 minutes, while the intraoperative blood loss figures were 733, 716, and 829 milliliters, respectively. After the surgical procedure, 3 units of suspension oligoleucocyte and 300 ml of frozen virus-inactivated plasma were infused into all patients. There were no occurrences of postoperative complications, specifically infections and deep vein thrombosis. At intervals of 25, 30, and 15 months, respectively, three patients were monitored. Following the surgery, a CT scan acquired at three months exhibited the satisfactory recovery of the osteotomy. Improvements in the VAS and Harris scores, femoral head rounding index, hip CE angle, and femoral head coverage were substantial at the 12-month post-operative mark and final follow-up, compared to the preoperative values. The Harris score, taken 12 months post-surgery, demonstrated excellent hip function for all three patients.
Reduction plasty of the femoral head, when combined with VR technology, yields satisfactory short-term outcomes in the management of coxa plana.
A combination of femoral head reduction plasty and VR technology produces satisfactory short-term results for treating coxa plana.

A study to determine the efficacy of completely removing a pelvic bone tumor and reconstructing it with an allogeneic pelvis, a modular prosthetic system, and a three-dimensional (3D) printed prosthesis.
A retrospective analysis of clinical data was performed on 13 patients with primary bone tumors in the pelvic region who underwent tumor resection and acetabular reconstruction between March 2011 and March 2022. ATN-161 clinical trial A group comprising 4 males and 9 females had an average age of 390 years, with individual ages ranging between 16 and 59. The study encompassed four cases of giant cell tumor, five cases of chondrosarcoma, two cases of osteosarcoma, and two instances of Ewing sarcoma. Pelvic tumor classifications, according to Enneking, revealed four cases situated within zone X, four additional cases in zones Y and Z, and a further five cases spanning zones A and B. The time period during which the disease persisted varied from one month to twenty-four months, averaging ninety-five months in duration. The clinical follow-up of patients involved observing for tumor recurrence and metastasis, while imaging examinations were utilized to evaluate the condition of the implanted device, considering parameters such as fracture, bone resorption, bone nonunion, and other relevant factors. Prior to and one week following surgical intervention, hip pain improvement was quantified using a visual analogue scale (VAS). Hip function recovery was measured post-operatively by employing the Musculoskeletal Tumor Society (MSTS) scoring method.
The operation's duration was four to seven hours, on average forty-six hours; the blood lost intraoperatively spanned eight hundred to sixteen hundred milliliters, with an average of twelve thousand milliliters. ATN-161 clinical trial Post-operative monitoring revealed no instances of re-intervention or patient demise. A follow-up process, spanning from nine to sixty months for each patient, demonstrated a mean follow-up time of 335 months. ATN-161 clinical trial Chemotherapy administered to four patients was found, during subsequent follow-up, to be free of tumor metastasis. One month following prosthesis replacement, complications included a postoperative wound infection in one patient and prosthesis dislocation in a different patient. The recurrence of a giant cell tumor twelve months following surgery led to a diagnostic puncture biopsy. Maligant transformation was observed, and a hemipelvic amputation was performed as a result. A notable reduction in postoperative hip pain was observed, as evidenced by a VAS score of 6109 one week post-surgery. This represented a significant departure from the preoperative VAS score of 8213.
=9699,
This JSON schema comprises a collection of sentences. A 12-month post-operative assessment demonstrated an MSTS score of 23021. This was comprised of 22821 for allogenic pelvic reconstruction patients and 23323 for patients having undergone prosthetic reconstruction. No significant difference in MSTS scores was detected when evaluating the performance of the two reconstruction procedures.
=0450,
Sentences are listed within this JSON schema. Following the concluding follow-up, five patients demonstrated the ability to walk with a cane's support, and seven patients could walk unassisted.
Reconstruction of primary bone tumors in the pelvic area, coupled with resection, leads to satisfactory hip function, and the integration of the allogeneic pelvis and 3D-printed prosthesis exhibits enhanced bone ingrowth, which better fulfills biomechanical and biological reconstruction requirements. Despite the difficulties inherent in reconstructing the pelvis, the patient's condition must be comprehensively evaluated before any surgical intervention, and long-term effectiveness warrants ongoing follow-up.
Pelvic bone tumors' resection and subsequent reconstruction, when performed correctly, ensure satisfactory hip function. The integration of an allogeneic pelvic implant with a 3D-printed prosthesis showcases superior bone ingrowth, fulfilling the necessary biomechanical and biological reconstruction criteria. The reconstruction of the pelvis is difficult; therefore, a comprehensive evaluation of the patient's condition prior to surgery is paramount, and long-term efficacy warrants continued monitoring.

Evaluating the viability and effectiveness of percutaneous screwdriver rod-assisted closed reduction in treating valgus-impacted femoral neck fractures is the aim of this study.
Between January 2021 and May 2022, 12 patients with valgus-impacted femoral neck fractures were treated by a combination of percutaneous screwdriver rod-assisted closed reduction and the use of the femoral neck system (FNS) for internal fixation. Among the group, there were 6 males and 6 females; their median age was 525 years, and their ages spanned a range of 21 to 63 years. Two cases of fractures stemmed from traffic accidents, nine from falls, and one from a fall from a high location. Seven unilateral, closed femoral neck fractures were found on the left, and an additional five were observed on the right. The timeframe from the moment of injury to the scheduled surgical intervention showed a range of 1-11 days, with a mean duration of 55 days. The postoperative period was monitored for both fracture healing and any associated complications, and these were recorded. Employing the Garden index, the quality of fracture reduction was assessed. In the final follow-up stage, hip joint function was evaluated using the Harris score, along with the measurement of femoral neck shortening.
The successful completion of all operations is a fact. One case, post-operatively, displayed fat liquefaction at the incision site, which resolved favorably with enhanced dressing changes. In contrast, the remaining patients experienced first-intention wound healing. Follow-up of all patients extended from 6 to 18 months, resulting in an average observation period of 117 months. The X-ray film re-evaluation, in accordance with the Garden index, indicated a satisfactory reduction quality in ten cases and an unsatisfactory quality in two. Bony union was confirmed in all fractured sites, and healing times spanned from three to six months, presenting a 48 month average. Following the final follow-up, the femoral neck exhibited a shortening of 1 to 4 mm, with an average reduction of 21 mm. Subsequent monitoring of the patients did not uncover any instances of internal fixation failure or osteonecrosis of the femoral head. The final follow-up measurements of the hip Harris scores demonstrated a range of 85 to 96, averaging 92.4. Ten cases were determined to be excellent and two were classified as good.
By utilizing the percutaneous screwdriver rod-assisted approach to closed reduction, valgus-impacted femoral neck fractures can be effectively addressed. This offers the benefits of easy operation, effective results, and minimal disruption to the blood flow.
The efficacy of a percutaneous screwdriver rod-assisted closed reduction is well-established in treating valgus-impacted femoral neck fractures. The device's advantages include effortless operation, significant effectiveness, and a minimal effect on the blood's circulation.

To assess the initial efficacy of arthroscopic rotator cuff repair, specifically contrasting the single-row modified Mason-Allen technique against the double-row suture bridge technique for moderate tears.
Between January 2021 and May 2022, the clinical data of 40 patients with moderate rotator cuff tears, who met specific selection criteria, were subjected to a retrospective analysis. Utilizing the modified single-row Mason-Allen suture technique, twenty cases were repaired (single-row group); conversely, twenty cases were managed with the double-row suture bridge technique (double-row group). No significant difference in gender, age, disease duration, rotator cuff tear size, and preoperative visual analogue scale (VAS) score, Constant-Murley score, and T2* value was apparent between the two study groups.