Journal of orthopaedic surgery (Hong Kong)最新文献

{"title":"Reliability improvement in Hallux Valgus measurement using weight-Bearing CT scan.","authors":"Suwimol Prusmetikul,&nbsp;Sukij Laohajaroensombat,&nbsp;Jakrapong Orapin,&nbsp;Pongsakorn Pittayasoponkij,&nbsp;Supakorn Buranawongtrakoon,&nbsp;Tulyapruek Tawonsawatruk","doi":"10.1177/10225536221122309","DOIUrl":"https://doi.org/10.1177/10225536221122309","url":null,"abstract":"<p><p><b>Background:</b> Radiographic assessment of hallux valgus is an essential process. Residual rotational deformity was shown associated with higher recurrent rate. This study aims to comprehensively assess reliability of measurement of various parameters from plain films and weight-bearing CT scan. <b>Methods:</b> A total of 40 pre-operative plain radiographs, 40 post-operative plain radiographs, and 37 weight-bearing CT scan were evaluated to determine reliability of hallux valgus parameters. <b>Results:</b> TSP and head shape representing coronal plane deformity showed lower inter-observer reliability compared to other parameters using for transverse plane evaluation especially in post-operative period. (post-op TSP amongst 3 assessors: κ = 0.386, 0.520, 0.340; post-op head shape: κ = 0.374, 0.375, 0.295) Using α angle for evaluation 1^st metatarsal rotation in weight-bearing CT scan demonstrated very good reliability for inter-observer (ICC = 0.853 (95% CI = 0.715-0.925)) and intra-observer (ICC = 0.902 (95% CI = 0.844-0.939)). <b>Conclusion:</b> Weight-bearing CT scan can improve reliability in post-operative coronal plane assessment.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221122309"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40364741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficacy of single-shot adductor canal block before Versus after primary total knee arthroplasty - Does timing make a difference? A randomized controlled trial.","authors":"Snir Heller,&nbsp;Shai Shemesh,&nbsp;Oleg Rukinglaz,&nbsp;Nir Cohen,&nbsp;Steven Velkes,&nbsp;Shai Fein","doi":"10.1177/10225536221132050","DOIUrl":"https://doi.org/10.1177/10225536221132050","url":null,"abstract":"<p><strong>Background: </strong>Total knee arthroplasty (TKA) is associated with severe postoperative pain. Multimodal analgesia, including peripheral nerve block, is recommended for post-operative pain relief. Administration of some pain medications prior to surgery has shown to be more effective than after the operation. This is a prospective, randomized controlled trial designed to compare the analgesic efficacy of the adductor canal block (ACB) performed immediately before or immediately after primary total knee arthroplasty (TKA). We hypothesized that ACB before the surgery will reduce postoperative pain and improve knee function.</p><p><strong>Methods: </strong>A total of 50 patients were enrolled and randomized into 2 groups, with 26 patients receiving a preoperative ACB and 24 receiving a postoperative ACB.</p><p><strong>Results: </strong>Treatment groups were similar in terms of gender (<i>p</i> = .83), age (<i>p</i> = 0.61) weight (<i>p</i> = .39) and ASA score. Average visual analogue scale (VAS) on arrival to the post-anesthesia care unit (PACU) were 4.9 ± 3.2 in the preoperative ACB versus 3.4 ± 2.8 for the postoperative ACB (<i>p</i> = .075). VAS scores at different time points as well as the mean, minimal and maximal reported VAS scores were not significantly different between the two groups. The cumulative quantities of Fentanyl administered by the anesthesia team was comparable between the groups. Similarly, the dosage of Morphine, Tramadol, Acetaminophen and Dipyrone showed only small variations. The Quality of Recovery Score, Knee Society Scores and knee range of motion did not differ between the groups.</p><p><strong>Conclusions: </strong>Our findings demonstrate no significant differences in patient total narcotics consumption, pain scores and functional scores, between preoperative and postoperative ACB in patients undergoing TKA.</p><p><strong>Trial registration: </strong>The trial was registered at www.clinicaltrials.gov and was assigned the registration number NCT02908711.</p><p><strong>Level of evidence: </strong>level I randomized controlled trial.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221132050"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40393208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinematic alterations of the ankle in subjects with generalized joint hypermobility compared with the controls: A cross-sectional study.","authors":"Haobin Chen,&nbsp;Xiaolong Zeng,&nbsp;Zhenyan Xie,&nbsp;Limin Ma,&nbsp;Guoqing Zhong,&nbsp;Liping Li,&nbsp;Wenhan Huang,&nbsp;Yu Zhang","doi":"10.1177/10225536221125951","DOIUrl":"https://doi.org/10.1177/10225536221125951","url":null,"abstract":"<p><strong>Introduction: </strong>Generalized joint hypermobility (GJH) is a hereditary connective tissue disease in which the range of motion (ROM) of multiple joints exceeds the normal range, and the ROM varies with age, gender, and ethnicity. At present, the six-degree-of-freedom (6-DOF) of ankle kinematics among people with GJH have not been studied. To investigate the kinematic characteristics in the ankle during treadmill gait of university students with generalized joint hypermobility compared to normal participants. We hypothesized that compared to the participants in the control group, those with GJH would exhibit kinematic characteristics of poorer active motion stability in the ankle during treadmill gait.</p><p><strong>Methods: </strong>Healthy university student volunteers aged 18-24 (excluding those with a history of ankle trauma, etc.) were recruited and divided into a control group (50 volunteers) and a GJH group (Beighton score ≥4, 50 volunteers). Data of the 6-DOF kinematics of ankle was collected using a 3D gait analysis system. Variables were evaluated using independent t-tests and Wilcoxon signed-rank tests.</p><p><strong>Results: </strong>In the proximal/distal parameter, proximal displacement was significantly increased in the GJH group compared with the control group during 4-9% and 96-97% of the gait phase (loading response and terminal swing phase), with an increase of (0.1-0.2 cm, <i>p</i> < .05). Regarding the proximal/distal, internal/external, plantarflexion/dorsiflexion, and anterior/posterior parameters, the participants with GJH exhibited greater ROM than those in the control group throughout the gait cycle (0.24 ± 0.22 cm vs. 0.19 ± 0.15 cm, <i>p</i> = 0.047, 5.56 ± 2.90° vs. 4.48 ± 3.30°, <i>p</i> = .020, 23.05 ± 5.75° vs. 20.36 ± 4.91°, <i>p</i> < .001, 0.65 ± 0.30 cm vs. 0.55 ± 0.27 cm, <i>p</i> = .018). However, ROM of inversion/eversion translation was found to be decreased in the GJH group compared to the control group (8.92 ± 1.59° vs. 9.47 ± 1.37°, <i>p</i> = .009). In addition, there was no statistical difference between the GJH group and the control group in ROM of medial/lateral translation (0.05 ± 0.06 cm vs. 0.04 ± 0.05 cm, <i>p</i> = .131).</p><p><strong>Conclusion: </strong>Our results confirm that our hypothesis is not valid. Although there were a few differences in each gait parameter of the ankle between the GJH group and the control group, the difference was not significant. These results indicate that the presence of GJH has less effect on ankle kinematics and enhance our knowledge of the relationship between GJH and 6-DOF of ankle kinematics.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221125951"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40363622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Achyranthoside D (AD) improve intervertebral disc degeneration through affect the autophagy and the activation of PI3K/Akt/mTOR pathway.","authors":"Chao Zhang,&nbsp;Zhaoyong Li,&nbsp;Linghui Li,&nbsp;Shuofu Li,&nbsp;Lei Yang,&nbsp;Long Chen,&nbsp;Xiao Zhang,&nbsp;Shaofeng Yang,&nbsp;Yantao Guo","doi":"10.1177/10225536221135474","DOIUrl":"https://doi.org/10.1177/10225536221135474","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to explore the potential mechanism of Achyranthoside D (AD) in improving intervertebral disc (IVD) degeneration (IDD).</p><p><strong>Methods: </strong>The IDD model of SD rats and nucleus pulposus cells (NPCs) was established by lumbar cone annulus puncture and tert-butyl peroxide, respectively. Cell proliferation was detected by CCK8 assay. Apoptosis was detected by flow cytometry and TUNEL staining. IVD tissue injury was observed by HE staining. Alcian blue staining observed the glycoprotein secretion in IVD. Monodansylcadaverin (MDC) staining was used to detect the formation of autophagosomes. The LC3 expression was tested by immunofluorescence. The type II collagen, aggrecan and MMP3 expression were detected by ELISA. RT-qPCR was used to detect the Casp 3, Bax, Bcl2, Acan, Col2a1 and Mmp3 expression. The LC3, P62, type II collagen, aggrecan, Beclin1, Akt, MMP3, p-mTOR, PI3K, mTOR, p-PI3K and p-Akt expression were analyzed by western blot.</p><p><strong>Results: </strong>The IVD tissue damage and apoptosis occurred in the Model group, and the glycoprotein secretion decreased. Compared with Model group, AD-H group alleviated the injury of IVD tissue, inhibited the apoptosis of cells, and increased the secretion of glycoprotein. 40 μg/mL AD restored the proliferation activity of NPCs. Compared to the Normal group, the NPCs apoptosis increased, the Collagen II, aggrecan and Bcl2 expressions were significantly decreased, the MMP3, Bax and Casp 3 expression were significantly increased, and the LC-3 II/I expression in IVD tissues were increased significantly in Model group, all of which was reversed in AD group. AD promoted the p-Akt, p-PI3K, p-mTOR, LC-3 II/I and Beclin1 expression, inhibited the P62 expression to alleviate the damage of nucleus pulporeus cells and the degeneration of IVD.</p><p><strong>Conclusion: </strong>AD improved IDD by affecting the PI3K/Akt/mTOR pathway and autophagy.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221135474"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40456037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparing exposed and buried Kirschner wires in fixation for pediatric supracondylar humerus fractures: A propensity score-matched study.","authors":"Seigo Suganuma,&nbsp;Kaoru Tada,&nbsp;Shingo Takagawa,&nbsp;Hidetoshi Yasutake,&nbsp;Keito Shimanuki,&nbsp;Kazuya Shinmura,&nbsp;Kenji Fujita,&nbsp;Hiroyuki Tsuchiya","doi":"10.1177/10225536221125949","DOIUrl":"https://doi.org/10.1177/10225536221125949","url":null,"abstract":"<p><strong>Purpose: </strong>To thoroughly compare the outcomes between exposed and buried Kirschner wires (K-wires) in fixation for pediatric supracondylar humerus fractures.</p><p><strong>Methods: </strong>We examined patients who underwent surgery at our institution between January 2007 and June 2021. We investigated their age, sex, fracture pattern, number of K-wires used, whether they were exposed or buried, operative time, postoperative complications, number of outpatient visits, duration from surgery to K-wire removal, total length of hospitalization, and perioperative radiographic parameters. After propensity score matching, intergroup comparisons were performed to assess the differences in postoperative complication rate, number of outpatient visits, duration from surgery to K-wire removal, total length of hospitalization, and loss of reduction.</p><p><strong>Results: </strong>Propensity score matching resulted in 43 pairs in both groups. Although more patients complained of skin irritation in the buried K-wire group, there was more backing out of the K-wire in the exposed K-wire group (<i>p</i> < 0.01). There were no significant differences in other complications. There were more outpatient visits in the buried K-wire group (<i>p</i> < 0.01). The duration from surgery to K-wire removal and the total length of hospitalization were significantly longer in the buried K-wire group (<i>p</i> < 0.01). There was no significant difference in the loss of Baumann's angle (<i>p</i> = 0.61), tilting angle (<i>p</i> = 0.48), or the development of rotation (<i>p</i> > 0.99) between groups.</p><p><strong>Conclusion: </strong>More outpatient visits and longer lengths of hospitalization in the buried K-wire group may lead to increased costs and burden on parents.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221125949"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40392507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A randomized controlled study of two different fixations in anterior cervical discectomy of multilevel cervical spondylotic myelopathy.","authors":"Wei Li,&nbsp;Bishui Zhan,&nbsp;Xuesheng Jiang,&nbsp;Guoshun Zhou,&nbsp;Junjie Li,&nbsp;Yongli Wang","doi":"10.1177/10225536221118601","DOIUrl":"https://doi.org/10.1177/10225536221118601","url":null,"abstract":"<p><p><b>Background:</b> To compare the efficacy of anterior cervical discectomy and hybrid fusion (ACDHF) with short-segment plate plus self-locking, stand-alone intervertebral cages versus traditional anterior cervical discectomy and fusion (ACDF) with long-segment plate for multilevel cervical spondylotic myelopathy (MCSM). <b>Methods:</b> All the patients were randomly divided into two groups. 30 cases underwent ACDHF with short-segment plate and self-locking stand-alone cages (hybrid group), while the other 30 cases received ACDF with long-segment plate (control group). In patients meeting the inclusion and exclusion criteria, operation time, blood loss, postoperative drainage volume, length of stay (LOS), visual analogue scale for neck pain (VASNP) scores, Japanese Orthopaedic Association (JOA) score, and the cervical lordosis before and after the operation (5 days, 3, 6, 12 months after operation and final follow-up) were evaluated. The postoperative complications were analyzed as well. <b>Results:</b> All operations were performed uneventfully with followed-up. Compared with ACDF, ACDHF showed a shorter operation time, less intraoperative blood loss and postoperative drainage (<i>p</i> < 0.05). There were no significant difference in LOS between two groups (<i>p</i> ˃ 0.05). Both approaches significantly improved the JOA scores, VASNP scores and the cervical lordosis (<i>p</i> < 0.05). Based on Bazaz grading system, hybrid group had a lower incidence of dysphagia than control group in follow-up periods of 5 days, 3 and 6 months (<i>p</i> < 0.05). <b>Conclusion:</b> ACDF and ACDHF are both effective methods of restoring cervical lordosis following MCSM, but hybrid surgery minimizes intraoperative injury and postoperative dysphagia, making it a viable treatment option for the disorder.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221118601"},"PeriodicalIF":1.6,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40354071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revision total hip arthroplasty using a Kerboull-type acetabular reinforcement device and allogeneic structural bone graft.","authors":"Yusuke Fujimoto,&nbsp;Shunsuke Nakamura,&nbsp;Toshiro Ijuin,&nbsp;Tomohiro Iuchi,&nbsp;Masahide Nakajo,&nbsp;Noboru Taniguchi","doi":"10.1177/10225536221119719","DOIUrl":"https://doi.org/10.1177/10225536221119719","url":null,"abstract":"<p><strong>Purpose: </strong>One of the major problems in revision total hip arthroplasty (THA) is severe acetabular bone loss. The aim of our study was to evaluate the clinical outcomes of revision THA using a Kerboull-type reinforcement device (KT plate) and allogeneic structural bone graft.</p><p><strong>Methods: </strong>This retrospective study evaluated 48 hips that underwent revision THA using a KT plate and allogeneic structural bone graft between 2008 and 2016, with a median follow-up of 6.2 years (range 3-12.6 years). Functional outcome was assessed using the Japanese Orthopaedic Association (JOA) hip score. Postoperative and follow-up radiographs were compared to assess migration and breakage of the implant.</p><p><strong>Results: </strong>The mean JOA hip score improved from 45.6 (±16.3) points before surgery to 72.1 (±11.9) points at the most recent follow-up examination (<i>p</i> < 0.001). Two hips (4.2%) underwent re-revision THA because of cup loosening due to breakage of the KT plate. A total of 13 hips (27.1%) were classified as radiological failures. Binomial logistic regression analysis showed that a Kawanabe classification of stage 4, which indicates massive bone defects in the weight-bearing area, was a risk factor for radiological failure (odds ratio: 4.57; 95% confidence interval: 1.01-26.35).</p><p><strong>Conclusions: </strong>A KT plate with an allogeneic structural bone graft is a useful method of acetabular reconstruction in revision THA that restores bone stock and improves hip function. Our findings indicated that a Kawanabe classification of stage 4 was a risk factor for radiological failure of the implant.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221119719"},"PeriodicalIF":1.6,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40618215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Arthroscopic lateral collateral ligament imbrication for treatment of atraumatic posterolateral rotatory instability.","authors":"Cholawish Chanlalit,&nbsp;Nattakorn Mahasupachai,&nbsp;Chidchanok Sakdapanichkul","doi":"10.1177/10225536221113243","DOIUrl":"https://doi.org/10.1177/10225536221113243","url":null,"abstract":"<p><strong>Background: </strong>Among the causative lesions of lateral elbow pain, atraumatic posterolateral rotatory instability (PLRI) is a rare condition, but it produces pain and disability to the elbow. It still lacks published specific treatment literature. According to the development of arthroscopy, the arthroscopic lateral collateral ligament (LCL) imbrication can possibly be an alternative minimal invasive procedure that can eradicate the atraumatic PLRI. <b>Hypothesis/Purpose:</b> To report clinical results of arthroscopic LCL imbrication for the treatment on atraumatic PLRI elbow. <b>Methods:</b> Thirty-three patients with chronic atraumatic lateral elbow pain were presented to our institution between July 2015 and December 2021. Eight patients were diagnosed with atraumatic PLRI and underwent arthroscopic LCL imbrication. Comparison between the pre- and post-operative scores were recorded, which were The Quick-Disabilities of Arm, Shoulder, and Hand (Quick-DASH) score, Mayo Elbow Performance Index (MEPI) and Visual Analog Scale for pain (VAS). <b>Results:</b> Mean follow-up was 16 months (9-24 months). Comparing between pre-operation and post-operation, all of eight patients had significant improved Quick-DASH score (mean 55.62 vs 7.62, <i>p</i> = .004), MEPI (mean 50.00 vs 96.87, <i>p</i> = .000) and VAS for pain (mean 8.14 vs 1.28, <i>p</i> = .000). <b>Conclusion:</b> Atraumatic PLRI is a concerning lesion in patients with lateral elbow pain. Arthroscopic LCL imbrication can be simultaneously performed with other lateral elbow pain causations, such as tennis elbow and pathological plica, and provide painless, stable, and functional elbow.</p><p><strong>Level of evidence: </strong>Case Series (Level of evidence: 4).</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221113243"},"PeriodicalIF":1.6,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40482945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multi-center retrospective comparative study of third generation Ceramic-on- Ceramic total hip arthroplasty in patients younger than 45 years with or without the sandwich liner: A ten-year minimum.","authors":"Bangjian He,&nbsp;Xigong Li,&nbsp;Rui Dong,&nbsp;Peijian Tong,&nbsp;Junying Sun","doi":"10.1177/10225536221109960","DOIUrl":"https://doi.org/10.1177/10225536221109960","url":null,"abstract":"<p><strong>Background: </strong>Ceramic-on-ceramic couplings are attractive alternative bearing surfaces that have been reported to eliminate or reduce problems related to polyethylene wear debris. However, the material in THA still remains one of the major concerns about the risk of fracture, due to its brittleness.</p><p><strong>Objective: </strong>The present study aims at reporting the fracture rate of a series of ceramic-on-ceramic THAs with use of the sandwich liner combined with a ceramic femoral head, and attempt to detect the relative risk factors, possible cause and assesse the medium-term clinical results.</p><p><strong>Methods: </strong>We retrospectively evaluated 282 patients (300 hips) with use of the sandwich liner ceramic-on-ceramic THA between 2001 and 2009 at three-centers. Patient assessment was based on demographic factors, including age, weight, gender and body-mass index. All patients were evaluated clinically and radio-graphically or computed tomography in consideration of dislocation, osteolysis, periprosthetic fracture, infection, loosening and implant fracture.</p><p><strong>Results: </strong>five ceramic sandwich liners fracture (1.7%) were observed at an average of 7.3 years follow-up. These factors were irrelevant to the ceramic liner fracture, including age (<i>p</i> = 0.205), weight (<i>p</i> = 0.241), gender (<i>p</i> = 0.553), body-mass index (<i>p</i> = 0.736), inclination (<i>p</i> = 0.727), and anteversion (<i>p</i> = 0.606). The overall survival was 91.4% at 12 years with revision as the endpoint. Other complications included dislocation in two, perprosthetic fracture in two and osteolysis in eight hips. No hip had aseptic loosening of the implants was seen.</p><p><strong>Conclusions: </strong>We found that the sandwich liner may be lead to a high rate of alumina fracture and osteolysis. We have discontinued the use of sandwich liner with THA since 2009.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221109960"},"PeriodicalIF":1.6,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40058615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Risk factors for residual pain after ligament reconstruction and tendon interposition on osteoarthritis of the first carpometacarpal joint.","authors":"Sayaka Komine,&nbsp;Yutaka Morizaki,&nbsp;Kosuke Uehara,&nbsp;Toshiki Miura,&nbsp;Takashi Ohe,&nbsp;Sakae Tanaka","doi":"10.1177/10225536221103301","DOIUrl":"https://doi.org/10.1177/10225536221103301","url":null,"abstract":"<p><strong>Background: </strong>Ligament reconstruction and tendon interposition (LRTI) is currently the most performed procedure for osteoarthritis (OA) of the thumb carpometacarpal (CMC) joint. In general, satisfactory outcomes are expected, although some patients complain of residual pain after LRTI. The objective of this study is to determine the factors associated with residual pain.</p><p><strong>Method: </strong>All patients with OA of the thumb CMC joint who underwent LRTI at our hospital between October 2013 and October 2018 and were regularly observed for at least 1 year were included. The following variables were extracted and included in the univariate analysis: sex, age, dominant hand, pain visual analog scale (VAS) score, Eaton classification, grip strength, pulp pinch strength, and metacarpophalangeal joint hyperextension angle were recorded as variables. Mann-Whitney U test or Fisher exact test was used for univariate analysis of the above factors, and then multivariate logistic regression analysis was performed to find out the factors associated with residual pain.</p><p><strong>Results: </strong>The study included 60 thumbs of 53 patients. Eleven thumbs had postoperative residual pain. The surgery on the dominant hand was significantly associated with the presence of postoperative residual pain, especially in males.</p><p><strong>Conclusions: </strong>Dominant hand was associated with residual pain after LRTI for OA of the thumb CMC joint, although residual pain was minimal. Our findings will help in preoperative and postoperative counseling of patients. In the future, our results may also help select surgical procedures according to the patient's characteristics.</p>","PeriodicalId":520682,"journal":{"name":"Journal of orthopaedic surgery (Hong Kong)","volume":" ","pages":"10225536221103301"},"PeriodicalIF":1.6,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40058714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}