The trial (NCT01877772) did not demonstrate the superiority of intraoperative bone channeling in rotator cuff repair over standard rotator cuff repair at 24 months postoperatively. Milano and colleagues 2 performed microfractures that were about 5 mm deep and 1.5 mm wide. The trial showed that the microfracture group had a greater healing rate for large tears involving the supraspinatus and infraspinatus. We hypothesize that the underlying mechanism of this effect may be related to the different method of the bone channeling technique. Lapner and colleagues 1 used a 2-mm K-wire, which was advanced into the insertion site through the cortex and into the metaphyseal bone of the proximal humerus (~4 cm). What confused us is the depth of the hole and the scope of bone channeling in the article.
Background Arthroscopic rotator cuff repair has recently been popularized for treating tears. In a biomechanical trial, the Mason-Allen stitch improved the fixation quality of poorly vascularized tendons. The use of this technique involving the subscapularis tendon remains rare. The aim of this study was to evaluate the clinical outcomes of Mason-Allen technique repaired subscapularis tendons. Methods A retrospective research of collected data from 98 patients with subscapularis tears who had undergone arthroscopic repair between May 2015 and December 2018. There were 75 males and 23 females. The mean age was 56.4 ± 9.6 years and the mean follow-up was 12.5 ± 4.0 months. The visual analog scale (VAS), American Shoulder and Elbow Surgeons (ASES) score, and Constant-Murley score were used to analyze shoulder function. An MRI was performed to assess the integrity of the repair. Results Patients had significantly less pain and a better active range of motion compared with preoperative levels. VAS improved significantly from a preoperative mean of 3.42 to a postoperative mean of 1.91. ASES increased significantly from the preoperative mean of 43.6 to the postoperative mean of 74.5. Seven cases suffered from retears, which were confirmed by an MRI examination. Conclusion Arthroscopic rotator cuff repair with the Mason-Allen method resulted in a decreased level of pain and satisfied function recovery.
Objective: The debate on efficacy of fusion added to decompression for lumbar spinal stenosis (LSS) is ongoing. The primary objective of this systematic review is to compare the outcome after decompression with and without fusion in patients with lumbar spinal stenosis .Methods: A literature search was performed in the Web of Science, EMBASE, Pubmed,and Cochrane Libraryfrom January 1990 to May 2021.The information of screened studies included clinical outcomes, and secondary measures, then data synthesis and meta-analysis were progressed.Data analysis was conducted using the Review Manager 5.0 software.Results: 17 studies were included in the analysis involving 2947 patients in total. In the majority of studies, including seven RCTs and ten observational studies. The pooled data revealed that fusion was associated with signifificantly higher rates of back pain scores when compared with decompression alone in RCT subgroup(SMD=-0.42, 95% CI (–0.60, -0.23), Z=4.31 P<0.0001).However, fusion signifificantly increased the intraoperative blood loss, operative time and hospital stay. Both techniques had similar leg Pain scores , EQ-5D, walking ability,ODI,major complication,clinical satisfactions and reoperation rate.Conclusions: Our studies showed that the additional fusion in the management of LSS yielded no clinical improvements over decompression alone within a 1-year follow-up period. We suggested that the least invasive and least costly procedure, being decompression alone, is preferred in patients with degenerative lumbar spinal stenosis. The appropriate surgical protocol for LSS should be discussed further.
Purpose To analyze the clinical effects of different positions of the weight-bearing axis (WBA) after high tibial osteotomy (HTO). Methods The clinical data of 90 patients who underwent HTO in the Department of Orthopedics at our hospital from June 2018 to June 2021 were retrospectively analyzed. Patients were divided into groups A and B (n = 45 per group) according to different post-HTO WBA positions of the affected side. WBAs in both groups were at 50–60% and 62–66% of the tibial plateau, from inside to outside, respectively. American Hospital for Special Surgery Knee Score (HSS), visual analog scale (VAS) score, femorotibial angle (FTA), and medial proximal tibial angle (MPTA) were recorded and analyzed. Results All patients were followed up with for 12 months. HSS scores increased gradually and VAS scores decreased gradually in both groups preoperatively, and at 3 months, 6 months, and 1 year postoperatively (P < 0.05). Compared to group A, group B had better HHS scores at 6 months and 1 year postoperatively (P < 0.05). There was no significant between-group difference in VAS scores at all aforementioned timepoints (P > 0.05). Postoperative MPTA and FTA were 89.56° ± 2.18° and 177.11° ± 2.63° in group A, and 89.07° ± 1.98° and 177.07° ± 2.36° in group B, respectively, with no significant between-group difference (P > 0.05). Conclusion Patients with post-HTO WBA ranges of 50–60% and 62–66% achieved knee joint function improvement and pain relief. Half a year later, those with a WBA range of 62–66% had better knee joint function scores. However, a comparison of long-term effects warrants further investigation.
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