scholarly journals Impact of surgeon’s hand and ocular dominance on right and left total knee arthroplasty alignment

2017 ◽  
Vol 86 (1) ◽  
pp. 5-7
Author(s):  
Shizar Goosheh ◽  
Jacalyn Thoren ◽  
Douglas Naudie ◽  
Mathew Teeter ◽  
James Howard ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Ocular Dominance ◽  
Left Knee ◽  
Surgical Performance ◽  
Pain Scores ◽  
Significant Difference ◽  
Total Knee ◽  
Genesis Ii ◽  
Postoperative Knee

Postoperative alignment is an important modifiable confounder that contributes to the longevity of total knee arthroplasty (TKA). Studies have shown that surgeon’s handedness can affect surgical performance; however, no studies have assessed the effect of surgeon’s hand or ocular dominance on TKA alignment. The purpose of this study was to evaluate the effect of surgeon’s hand and ocular dominance on coronal plane alignment in TKA. We retrospectively evaluated 138 patients who underwent sequential bilateral TKA by the same surgeon, using the Genesis II PS knee (Smith & Nephew, Memphis, TN). We assessed postoperative alignment by measuring and comparing anatomical tibiofemoral angle (TFA) bilaterally on standard postoperative knee radiographs, as well as Knee Society function and pain scores to determine any functional differences. Lastly, we evaluated whether a crossed hand-ocular dominant surgeon had greater accuracy when performing a TKA on the side opposite their hand dominance compared to uncrossed hand-ocular dominant surgeons. All surgeons were right-hand dominant and there was a significantly larger anatomical TFA on left TKAs (mean [SD], 4.6° [2.8°]) compared to right TKAs (3.8° [2.5°]) (P = 0.003). There was no significant difference between right and left Knee Society function (P = 0.09) and pain scores (P = 0.86). When comparing left TKAs, surgeons with uncrossed hand-ocular dominance (4.5°) performed with equal accuracy compared to surgeons with crossed hand-ocular dominance (4.8°) (2-tailed test = 0.597), indicating no effect of ocular dominance. In summary, hand but not ocular dominance was shown to have significant postoperative alignment effects on TKA.

Discontinuation of the liposomal delivery of bupivacaine has no effect on pain management after primary total knee arthroplasty

2021 ◽  
Vol 103-B (6 Supple A) ◽  
pp. 102-107
Author(s):  
James E. Feng ◽  
Chibuokem P. Ikwuazom ◽  
Siddharth A. Mahure ◽  
Daniel P. Waren ◽  
James D. Slover ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Function ◽  
Periarticular Injection ◽  
Pain Scores ◽  
Management Protocol ◽  
Significant Difference ◽  
Opioid Administration ◽  
Injection Protocol ◽  
Total Knee

Aims Liposomal bupivacaine (LB) as part of a periarticular injection protocol continues to be a highly debated topic in total knee arthroplasty (TKA). We evaluated the effect of discontinuing the use of LB in a periarticular protocol on immediate postoperative pain scores, opioid consumption, and objective functional outcomes. Methods On 1 July 2019, we discontinued the use of intraoperative LB as part of a periarticular injection protocol. A consecutive group of patients who received LB as part of the protocol (Protocol 1) and a subsequent group who did not (Protocol 2) were compared. All patients received the same opioid-sparing protocol. Verbal rating scale (VRS) pain scores were collected from our electronic data warehouse and averaged per patient per 12-hour interval. Events relating to the opiate administration were derived as morphine milligram equivalences (MMEs) per patient per 24-hour interval. The Activity Measure for Post-Acute Care (AM-PAC) tool was used to assess the immediate postoperative function. Results A total of 888 patients received Protocol 1 and while 789 received Protocol 2. The mean age of the patients was significantly higher in those who did not receive LB (66.80 vs 65.57 years, p = 0.006). The sex, BMI, American Society of Anesthesiologists physical status score, race, smoking status, marital status, operating time, length of stay, and discharge disposition were similar in the two groups. Compared with the LB group, discontinuing LB showed no significant difference in postoperative VRS pain scores up to 72 hours (p > 0.05), opioid administration up to 96 hours (p > 0.05), or AM-PAC scores within the first 24 hours (p > 0.05). Conclusion The control of pain after TKA with a multimodal management protocol is not improved by the addition of LB compared with traditional bupivacaine. Cite this article: Bone Joint J 2021;103-B(6 Supple A):102–107.

Liposomal Bupivacaine Infiltration Versus Bupivacaine Hydrochloride for the Management of Unilateral Total Knee Arthroplasty in Geriatric Patients at a 287-Bed Community Hospital

2020 ◽  
pp. 001857872096542
Author(s):  
Abdus-Samad Syed Minhaj ◽  
Ashley Marie Skipper ◽  
Mckenna Murphy
Keyword(s):  
Total Knee Arthroplasty ◽  
Hospital Stay ◽  
Knee Arthroplasty ◽  
Geriatric Patients ◽  
Opioid Consumption ◽  
Liposomal Bupivacaine ◽  
Lengths Of Stay ◽  
Pain Scores ◽  
Significant Difference ◽  
Total Knee

Introduction: Geriatric patients receiving total knee arthroplasty (TKA) are found to have similar postoperative complications, functional scores, and perioperative mortality, as compared to younger patients. Conversely, geriatric patients often have longer lengths of stay. Periarticular injection (PAI) of liposomal bupivacaine (LB) as part of the multimodal pain management strategy is thought to improve recovery, however, mixed comparative efficacy data exists for its use in TKA.2-5. Methods: A retrospective, chart review was conducted at a 287-bed community teaching hospital. Orthopedic surgical patients who received an infiltration with liposomal bupivacaine versus bupivacaine HCl for unilateral TKA were compared. Patients identified in the electronic medical record by Diagnosis Related Group (DRG) 470—major joint replacement or reattachment of lower extremity without major complication or comorbidity codes were utilized. Patients who meet the following criteria were included: age 65 and older who underwent a TKA between 8/1/2018 to 7/31/2019 were discharged to home. Patients who have contraindications or hypersensitivity to bupivacaine formulations or a history of opioid dependence were excluded. The primary outcome is to identify whether patients who received an infiltration with liposomal bupivacaine had a lower total opioid consumption during their hospital stay. Results: A total of 114 patients who had a DRG 470 code and were above the age of 65 years were studied. There was no statistically significant difference in mean total opioid consumption (oral morphine equivalents) between the bupivacaine HCl (n = 25) and liposomal groups (n = 85) respectively, 93.76 versus 83.72 mg; P = .569. In addition, patients in both groups had similar lengths of hospital stay, 2.5 versus 3 days; P = .529 and mean pain scores until discharge 3.7 versus 4.34 on VAS; P = .305. Conclusion: The results of this drug utilization evaluation do not support a strong clinical advantage with local infiltration of liposomal bupivacaine over bupivacaine HCl in geriatric patients undergoing primary TKA surgery at this institution. There was not a statistically significant difference in mean total opioid consumption between the 2 groups. Additionally, the use of non-opioid analgesics, mean pain scores, and hospital lengths of stay were similar in both groups.

scholarly journals Patella Eversion in Knee Arthroplasty: Does it lead to an adverse outcome?

2017 ◽  
Vol 5 (5_suppl5) ◽  
pp. 2325967117S0016
Author(s):  
Michael Reid ◽  
Grant Booth ◽  
Riaz JK Khan ◽  
Greg Janes
Keyword(s):  
Total Knee Arthroplasty ◽  
Functional Outcome ◽  
Knee Arthroplasty ◽  
Patella Tendon ◽  
Medial Parapatellar Approach ◽  
Pain Scores ◽  
Significant Difference ◽  
Total Knee ◽  
One Year ◽  
Medial Parapatellar

Objectives: Proponents of minimally invasive knee replacements argue that retracting rather than everting the patella results in quicker postoperative recovery and improved function compared to the standard approach. We aimed to investigate this in a group of patients undergoing knee arthroplasty using a standard medial parapatellar approach. Methods: In a prospective randomized double-blinded study sixty-eight patients undergoing total knee arthroplasty through a standard medial parapatellar approach were assigned to either retraction or eversion of the patella. An independent observer assessed the flexion and secondary outcome measures of Oxford knee score, the SF12 score, visual analog pain scores, range of motion data and radiographs preoperatively, at three months and at one-year post surgery. Results: Early (3 month) follow-up showed no significant difference between eversion and subluxation in flexion (mean and 95%CI, 101°± 5.37 vs 102°±4.14) Oxford knee scores (25±3 vs 27±2.69), SF12 or visual analog pain scores (1.9±0.54 vs 1.1±0.44). A statistically significant improvement in extension was found (-3.9°±1.12 vs 2.0°±0.91 (p=0.034)) but this was not thought to be clinically significant. There was no difference in any outcomes at one year. There was a significant difference in implant malpositioning in the subluxation group with increased percentage lateral tibial overhang (0.45±0.39 vs 1.84±0.82 (p=0.005)) but this did not correlate with functional outcome. There was no statistical difference in alignment between the two groups (178.29°±0.84 vs 178.18°±0.78). There was no difference between the two groups in Insall-Salvati Ratio (1.15±0.06 vs 1.12±0.06) although there was a correlation to a reduction in the ratio and functional outcome. There were two partial divisions of the patella tendon in the retraction group, but no patella related complications in the eversion group. Conclusion: Retracting rather than everting the patella during total knee arthroplasty results in no significant clinical benefit in the early to medium term. There is no increase in patella tendon shortening as a result of eversion rather than subluxation.

scholarly journals The Effect of Femoral Nerve Block and Adductor Canal Block Methods on Patient Satisfaction in Unilateral Knee Arthroplasty: Randomized Non-Inferiority Trial

2021 ◽  
Vol 12 ◽  
pp. 215145932199663
Author(s):  
Mustafa Kaçmaz ◽  
Zeynep Yüksel Turhan
Keyword(s):  
Total Knee Arthroplasty ◽  
Patient Satisfaction ◽  
Nerve Block ◽  
Knee Arthroplasty ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Adductor Canal Block ◽  
Adductor Canal ◽  
Significant Difference ◽  
Total Knee

Introduction: Femoral Nerve Block (FNB) and Adductor Canal Block (ACB) methods, which are regional analgesic techniques, are successfully used in postoperative pain control after total knee arthroplasty. This study aimed to compare adductor canal block method that was preoperatively used and femoral nerve block method in total knee arthroplasty (TKA) patients who underwent spinal anesthesia in terms of factors effecting patient satisfaction and determine whether these methods were equally effective or not. Methods: A total of 80 patients between the ages of 60 and 75 who were in the American Society of Anesthesia (ASA) physical status of I-III were prospectively included in this randomized study. Patients (n = 40) who received FNB were called Group FNB and patients (n = 40) who received Adductor Canal Block were called Group ACB. Results: Although mean postoperative VAS values were lower in FNB group only in the first hour (p = 0.02) there was no significant difference between the groups in the third, fifth, seventh, ninth, 12th and 24th hours (p≥0.05). Although Bromage scores were lower in FNB group in the first, second, third, fourth and fifth hours there was no statistically significant difference between the groups (p≥0.05). When mobilization time, patient satisfaction level, time of first analgesia, intraoperative sedation need, and recovery time of sensorial block were compared no statistically significant difference was found (p≥0.05). Discussion: When ACB and FNB that are used for postoperative analgesia in patients who undergo total knee arthroplasty are compared in terms of factors affecting patient satisfaction it is observed that they result in the same level (non-inferiority) of patient satisfaction. Conclusion: We recommend the routine use of ACB method with FNB in total knee arthroplasty. More studies focusing especially on measuring patient satisfaction are needed.

Accelerometer-Based Portable Navigation System Is Useful for Tibial Bone Cutting in Modified Kinematically Aligned Total Knee Arthroplasty

2019 ◽  
Author(s):  
Masanori Tsubosaka ◽  
Tomoyuki Kamenaga ◽  
Yuichi Kuroda ◽  
Koji Takayama ◽  
Shingo Hashimoto ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Outcomes ◽  
Knee Arthroplasty ◽  
Navigation System ◽  
Slope Angle ◽  
Posterior Slope ◽  
Tibial Bone ◽  
Significant Difference ◽  
Portable Navigation ◽  
Total Knee

AbstractSeveral studies have reported better clinical outcomes following kinematically aligned total knee arthroplasty (KA-TKA) than mechanically aligned TKA. Consistent reproduction of a KA-TKA is aided by accurate tibial bone resections using computer navigation systems. This study compares an accelerometer-based portable navigation system with a conventional navigation system on tibial bone resection and clinical outcomes in KA-TKA. This study included 60 knees of patients who underwent primary KA-TKA between May 2015 and September 2017. They were randomly assigned to the OrthoPilot and iASSIST groups. A tibial bone cut was performed with 3 degree varus and 7 degree posterior slope in relation to the mechanical axis in all cases. The tibial component angle (TCA) and posterior slope angle (PSA) were evaluated by postoperative radiography, and those that deviated more than 2 degree were set as outliers. The clinical outcomes were the knee range of motion (ROM) and 2011 Knee Society Score (KSS) evaluated at 1 year postoperation. The groups were compared in terms of the TCA, PSA, number of outliers, ROM, and 2011 KSS (p < 0.05). No significant difference was observed between the groups in terms of the mean TCA, PSA, number of outliers, ROM, and categories of the 2011 KSS (objective knee indicators, symptoms, satisfaction, expectations, and functional activities). Although tibial bone cuts were performed with 3 degree varus and 7 degree posterior slope, no significant difference was observed between the OrthoPilot and iASSIST groups in terms of the accuracy of cuts or postoperative clinical result. The iASSIST was found to be a simple and useful navigation system for KA-TKA.

Is Standing Coronal Long-Leg Alignment View Effective in Predicting the Extent of Medial Soft Tissue Release in Varus Deformity during Total Knee Arthroplasty?

2021 ◽  
Author(s):  
Mohammadreza Minator Sajjadi ◽  
Mohammad Ali Okhovatpour ◽  
Yaser Safaei ◽  
Behrooz Faramarzi ◽  
Reza Zandi
Keyword(s):  
Total Knee Arthroplasty ◽  
Soft Tissue ◽  
Knee Arthroplasty ◽  
Varus Deformity ◽  
Soft Tissue Release ◽  
Varus Knee ◽  
Significant Difference ◽  
Leg Alignment ◽  
Total Knee ◽  
Group 2

AbstractThe aim of this study was to assess the predictive value of the femoral intermechanical-anatomical angle (IMA), mechanical lateral distal femoral angle (mLDFA), medial proximal tibia angle (MPTA), femorotibial or varus angle (VA), and joint line convergence angle (CA) in predicting the stage of the medial collateral ligament (MCL) during total knee arthroplasty (TKA) of varus knee. We evaluated 229 patients with osteoarthritic varus knee who underwent primary TKA, prospectively. They were categorized in three groups based on the extent of medial soft tissue release that performed during TKA Group 1, osteophytes removal and release of the deep MCL and posteromedial capsule (stage 1); Group 2, the release of the semimembranosus (stage 2); and Group 3, release of the superficial MCL (stage 3) and/or the pes anserinus (stage 4). We evaluated the preoperative standing coronal hip-knee-ankle alignment view to assessing the possible correlations between the knee angles and extent of soft tissue release. A significant difference was observed between the three groups in terms of preoperative VA, CA, and MPTA by using the Kruskal–Wallis test. The extent of medial release increased with increasing VA and CA as well as decreasing MPTA in preoperative long-leg standing radiographs. Finally, a patient with a preoperative VA larger than 19, CA larger than 6, or MPTA smaller than 81 would need a stage 3 or 4 of MCL release. The overall results showed that the VA and MPTA could be useful in predicting the extent of medial soft tissue release during TKA of varus knee.

An imaging measurement study of normal knee parameters in southeast China

2021 ◽  
Vol 17 ◽  
Author(s):  
Huitong Liu ◽  
Bingqiang Xu ◽  
Eryou Feng ◽  
Shizhang Liu ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Tibial Plateau ◽  
Femoral Condyle ◽  
Age Groups ◽  
Young Group ◽  
Normal Female ◽  
Valgus Angle ◽  
Significant Difference ◽  
Total Knee

Background: Imaging measurement of distal femur and proximal tibia has been the hot point in the research of total knee arthroplasty and prosthesis development, which is an important treatment for patients with advanced knee joint disease. This study retrospectively investigated the digital imaging measurement of normal knee parameters in southeast China and evaluated their clinical value. Methods: From February 2010 to May 2014, and in accordance with the inclusion criteria, a total of 677 knees (334 female knees and 343 male knees) were categorized into 3 age groups. Clinical and digital imaging data, including the distal femoral condyle diameter (FCD), tibial plateau diameter (TPD), the distance between the medial tibial plateau and fibular head (DPF), tibiofemoral valgus angle, distal femoral valgus angle, proximal tibia (PT) varus angle and the angle from femoral condyle to tibial perpendicular (FT), were measured by using AutoCAD 10.0 software. All measured variables were statistically analyzed by SPSS statistical software (version 18.0). Results: Data are presented as the mean ± standard deviation. The normal female and male femoral condyle diameter was (7.69 ± 0.46) cm and (8.68 ± 0.55) cm, while the normal female and male tibial plateau diameter was (7.66 ± 0.46) cm and (8.60 ± 0.55) cm, respectively. The normal female and male DPF was (0.76 ± 0.36) cm and (0.79 ± 0.36) cm. For females and males, the tibiofemoral valgus angle and distal femoral valgus angle were (3.89 ± 2.20) ° and (3.29 ± 2.12) °, (9.03 ± 2.18) ° and (8.25 ± 2.20) °. As the two methods to measure tibial plateau varus angle, PT angle of normal female and male was (4.29 ± 1.86) ° and (4.84 ± 2.23) °, while the normal female and male FT angle was (5.34 ± 1.95) ° and (5.52 ± 2.07) °. Based on the data obtained, we found significant differences between the two genders in terms of the femoral condyle diameter and tibial plateau diameter in all age groups (P < 0.01). The DPF parameter showed an obvious difference between the young group and the middle-aged group (P < 0.05), and no significant difference was observed between the sides and genders (P > 0.05). The distal femoral valgus angle showed statistical differences between genders in the left side of the young group and middle-aged group (P < 0.05), while angle PT and FT showed no significant difference (P > 0.05). Conclusion: A large number of knee measurements was obtained, and a local knee database was developed in this study. Imaging measurement prior to total knee arthroplasty is clinically important for increasing the accuracy and long-term efficacy of total knee arthroplasty. These data can also provide useful information for knee surgery and sports medicine as well as prosthesis development.

The Effectiveness of Client-Centered Intervention With Telerehabilitation Method After Total Knee Arthroplasty

2021 ◽  
pp. 153944922110382
Author(s):  
Berkan Torpil ◽  
Özgür Kaya
Keyword(s):  
Quality Of Life ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Intervention Program ◽  
Nottingham Health Profile ◽  
Performance Measure ◽  
Occupational Performance ◽  
Significant Difference ◽  
Total Knee

There is known to be a decrease in quality of life and perceived occupational performance and satisfaction following total knee arthroplasty (TKA). This study was planned to examine the effectiveness of a client-centered (CC) intervention with the telerehabilitation (TR) method on the quality of life, perceived occupational performance, and satisfaction after TKA. A total of 38 patients who had undergone TKA were randomly assigned to the CC and control groups. A 12-day intervention program was applied to the CC group. The Nottingham Health Profile (NHP) and Canadian Occupational Performance Measure (COPM) were applied before and after intervention. The 12-day intervention showed a strong effect on all parameters in the CC group ( p<.001). In the postintervention comparisons, a significant difference was found in favor of the CC group ( p < .001). CC interventions with the TR method can be used in post-TKA interventions.

Total Knee Arthroplasty Is Safe in Jehovah's Witness Patients—A 12-Year Perspective

2019 ◽  
Vol 33 (01) ◽  
pp. 034-041 ◽  
Author(s):  
Theodore S. Wolfson ◽  
David Novikov ◽  
Kevin K. Chen ◽  
Kelvin Y. Kim ◽  
Afshin A. Anoushiravani ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Postoperative Complications ◽  
Knee Arthroplasty ◽  
Subgroup Analysis ◽  
Blood Management ◽  
Folate Supplementation ◽  
Level Of Evidence ◽  
Significant Difference ◽  
Total Knee

AbstractDespite the evolution of blood management protocols, total knee arthroplasty (TKA) occasionally requires allogeneic blood transfusion. This poses a particular challenge for Jehovah's Witnesses (JW) who believe that the Bible strictly prohibits the use of blood products. The aim of this study was to compare JW and a matched-control cohort of non-JW candidates undergoing TKA to assess the safety using modern blood management protocols. Fifty-five JW patients (63 knees) who underwent TKA at our institution between 2005 and 2017 were matched to 63 non-JW patients (63 knees). Patient demographics, intraoperative details, and postoperative complications including in-hospital complications, revisions, and 90-day readmissions were collected and compared between the groups. Additionally, subgroup analysis was performed comparing JW patients who were administered tranexamic acid (TXA) between the two groups. Baseline demographics did not vary significantly between the study cohorts. The mean follow-up was 3.1 years in both the JW and non-JW cohorts. Postoperative complications, including in-hospital complications (7.9 vs. 4.8%; p = 0.47), revision TKA (1.6 vs. 1.6%; p = 1.00), and 90-day readmission (1.6 vs. 4.8%; p = 0.31) were not significantly different between the JW and non-JW groups. Subgroup analysis demonstrated JW patients who received TXA had a significantly lower decline in postoperative hemoglobin (Hgb) (8.6 vs. 14.0%; p < 0.01). At a follow-up of up to 12 years, JW patients who underwent TKA have outcomes equivalent to non-JW patients without the need for transfusion. Our findings support that surgeons are more likely to optimize JW patients preoperatively with iron and folate supplementation. Despite these variations in preoperative optimization efforts, no significant difference with regard to Hgb or hematocrit levels was demonstrated. Level of evidence is III, retrospective observational study.

scholarly journals COMPARISON OF HEMOSTASIS WITH TRANEXAMIC ACID IN TOTAL KNEE ARTHROPLASTY

2021 ◽  
Vol 29 (4) ◽  
pp. 184-188
Author(s):  
OTÁVIO MONTOVANELLI MONTEIRO ◽  
RODRIGO TURRA PERRONE ◽  
FABRÍCIO NASCIMENTO ALMEIDA ◽  
CID PEREIRA DE MOURA JUNIOR ◽  
SAULO GOMES DE OLIVEIRA ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Tranexamic Acid ◽  
Knee Arthroplasty ◽  
Statistical Significance ◽  
Primary Total Knee Arthroplasty ◽  
Joint Surface ◽  
Thromboembolic Events ◽  
Significant Difference ◽  
Total Knee ◽  
Group 3

ABSTRACT Objective: To compare the use of intravenous and topical tranexamic acid (TXA) in unilateral primary total knee arthroplasty (TKA) in relation to blood loss and complications inherent to the medication. Method: Three groups with 14 patients each were constituted, and all of them were operated using the same surgical technique. In Group 1, usual measures for bleeding control were performed. Group 2 patients received TXA topically on the joint surface. In Group 3, intravenous TXA was used. Hemoglobin (HB), hematocrit (HTC), platelets (PLAT), prothrombin time, activated partial thromboplastin time and volume of blood drained observed 24 hours after arthroplasty were compared to the values of tests found before surgery. Results: There was a decrease in the concentration of HB, HTC and PLAT in all groups in relation to the preoperative, however without significant difference. Group 3 had a lower mean volume of drained blood than the other groups, with statistical significance. No adverse effects or thromboembolic events were observed in the groups that received TXA. Conclusion: This study showed superiority in the use of intravenous TXA in decreasing the volume of bleeding, without increasing the risk of thromboembolic events. Level of Evidence I, High quality randomized trial with statistically significant difference or no statistically significant difference but narrow confidence intervals.

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