Cementless and Cemented Total Knee Arthroplasties Have Similar Outcomes but Cementless Patellar Component Migration was Observed in a Paired Randomized Control Trial.

BACKGROUND: Cementless total knee arthroplasty (TKA) has become increasingly popular. Some surgeons are concerned about pain, implant stability, and metal-backed patellar component survivorship. This study investigated the outcomes of cementless compared with cemented TKA in bilateral cases. METHODS: We randomized 80 knees in 40 osteoarthritic knee patients who underwent bilateral TKA with patellar resurfacing under one anesthesia. All participants received cementless prostheses in one knee and cemented prostheses in the other. The outcomes were knee function measured by the forgotten joint scores, modified Western Ontario and McMaster Universities Osteoarthritis Index, knee ranges of motion, pain levels, operative times, radiographic outcomes, and complications. All knees were followed for a minimum of 2 years (2 to 3 years). RESULTS: Cementless and cemented TKA had similar functional outcomes in forgotten joint score (97 ± 5 versus 98 ± 3 points, P = .52), modified Western Ontario and McMaster Universities Osteoarthritis Index score (3 ± 4 versus 3 ± 2 points, P = .96), and ranges of motion (134 ± 7° versus 134 ± 7°, P = .16). The postoperative pain was also similar (P > .05). There were 4 cementless patellar components had superior migration for an average of 3.5 mm (range, 1.77 to 4.16) without loosening. The mean time of migration was 4 (range, 2 to 6) weeks. CONCLUSIONS: Cementless TKA had similar functional outcomes and recovery patterns compared with cemented TKA. However, there was concern of cementless component migration at patellae.

Do we need to restore patellar thickness after total knee arthroplasty with patellar resurfacing?

PURPOSE: The aim of this study was to investigate whether increased patellar thickness after resurfacing decreased knee flexion angle and had any effect on functional outcomes comparing with patellar thickness restoration (patelloplasty) in patients undergoing primary total knee arthroplasty (TKA) or not. METHODS: We retrospectively reviewed 220 patients undergoing primary TKA: 110 patients undergoing patelloplasty and 110 patients received overstuffed patellar resurfacing using subchondral bone cut at lateral facet technique were recruited. The mean increase in patellar thickness after resurfacing equal to 2 ± 1.2 mm. The outcomes were postoperative knee flexion angle and modified Western Ontario and McMaster University Osteoarthritis Index (WOMAC) score at minimum 2 year after surgery. RESULTS: The mean postoperative knee flexion angles were similar between overstuffed resurfacing group and patelloplasty group (132 ± 7° vs. 134 ± 8°, 95% confidence interval [CI] - 6.9-1.8°, p = 0.1). The mean increase in postoperative knee flexion was 13° in both groups (p = 0.94). The mean change of overall modified WOMAC score was also similar between the two groups (42 ± 12 vs. 39 ± 9 points, 95% CI - 1.7-9.4 points, p = 0.17). CONCLUSION: This study demonstrated that increased patellar thickness has no effect on postoperative knee flexion angle and functional outcomes in TKA. The finding clarified the misunderstanding principle of native patellar thickness restoration after resurfacing which had made many surgeons to refrain from resurfacing especially in patient who had thin patella.

Synovium removal from the articular side of the quadriceps tendon around the superior pole of patella reduces the crepitus after total knee arthroplasty.

PURPOSE: The purpose of this study was to investigate whether synovium removal from the articular side of the quadriceps tendon around the superior pole of the patella after total knee arthroplasty (TKA) reduced the incidence of patellar crepitus (PC) or not. METHODS: We retrospectively reviewed 134 consecutive patients who underwent primary posterior stabilized (PS)-TKA by one surgeon from 2010 to 2013. Sixty-seven patients performed without touching synovium at superior pole of patella and 67 patients performed with removing all synovium from superior pole of patella were compared; none had patellar resurfacing. Patients were followed up two and six weeks, three, six and 12 months and annually thereafter. The primary outcome was the incidence of PC, detected during follow-up, and was graded as absent (0), fine (1), or coarse (2). RESULTS: At one year of follow-up, the synovial removal (SR) group had a significant lower rate of PC compared to the synovial preserved (SP) group: 15/67 (22%) vs 34/67 (51%), adjusted odds ratio = 0.29, 95% confidence interval (CI) = 0.14 to 0.64, P = 0.002. All PC in SR group were grade 1 while four knees in SP group were grade 2. Mean PC onset was eight months after surgery (range 1.5 to 12, P = 0.78) in both groups. CONCLUSION: Removal of the synovium from the articular side of the quadriceps tendon around the superior pole of patellar reduced the incidence of PC after primary PS-TKA without patellar resurfacing. This is a promising technique and might enlighten surgeons to reduce the noise and improve patient satisfaction after total knee replacement.

The effect of immediate post-operative knee range of motion photographs on post-operative range of motion after total knee arthroplasty : An assessor-blinded randomized controlled clinical trial in sixty patients.

PURPOSE: We attempted to determine the effect of immediate post-operative knee range of motion (ROM) photographs on improving ROM after total knee arthroplasty (TKA). METHODS: Sixty patients, scheduled for unilateral primary TKA, were randomized into two groups. The photo group (n = 30) were immediately shown post-TKA knee ROM photographs as motivation for rehabilitation. The non-photo group (n = 30) received identical post-operative pain control and rehabilitation programs. Post-operative knee ROM and Knee Society Scores (KSS) at day three, six weeks, three months, six months, one year, and two years were evaluated. Outcome assessors were blinded to the groups during the study. RESULTS: Patients in the photo group had better knee flexion on day three (99.9° ± 15.3°, 95% confidence interval (CI) 94.1-105.7° vs. 92.3° ± 11.4°, 95% CI 87.9-96.8°; p = 0.038) and at six weeks (120.9° ± 13.4°, 95% CI 115.7-126.0° vs. 112.5° ± 13.6°, 95% CI 107.2-117.8°; p = 0.023); however, there were no differences in range of flexion beyond six weeks post-operatively. Knee extension did not significantly differ throughout. Clinical KSS was significantly higher in the photo group at six weeks (90.7° ± 6.2° vs. 86.6° ± 6.4°, p = 0.017). Functional KSS showed no differences between groups during follow-up. CONCLUSION: Showing knee ROM photographs seemed to result in significant improvement of knee flexion and clinical KSS in the first 6 weeks post-TKA and may be recommended as part of post-TKA rehabilitation.

Intravenous Dexamethasone Injection Reduces Pain From 12 to 21 Hours After Total Knee Arthroplasty: A Double-Blind, Randomized, Placebo-Controlled Trial.

BACKGROUND: Pain after total knee arthroplasty (TKA) affects postoperative recovery and patient satisfaction. The analgesic benefits of corticosteroids have not been well studied. We, therefore, investigated the analgesic effects of intravenous (IV) dexamethasone (DEX) in patients undergoing a TKA. METHODS: This was a randomized, double-blind, placebo-controlled trial of 0.15 mg/kg of IV DEX vs saline placebo in unilateral TKA. Fifty patients/arm were recruited. Primary outcomes were pain level, determined by a visual analog scale, and the amount of morphine consumption (mg) ≤48 hours post-TKA. Secondary outcomes were rates of nausea and vomiting, C-reactive protein concentrations, and functional outcomes. RESULTS: The DEX group had a significantly lower mean visual analog scale score both at rest and during motion at 12, 15, 18, and 21 hours (P < .05). At 21 hours, the mean difference (Δ) in pain at rest was -11 points (95% confidence interval [CI], -21 to -2 points; P = .02) while the mean difference in pain during motion was -15 points (95% CI, -25 to -5 points; P = .004). The DEX group also had lower rates of nausea and vomiting: 29/50 (58%) vs 42/50 (84%) (P = .008) and lower mean C-reactive protein level: 89 vs 167, Δ = -78 mg/L (95% CI, -100 to -58 mg/L, P < .0001). There were no significant differences in mean morphine consumption by 48 hours, modified Western Ontario and McMaster University Osteoarthritis Index scores, and range of motion of the knee at 3-month follow-up (P > .05). CONCLUSION: IV DEX relieves postoperative pain between 12 to 21 hours after TKA and may be a useful adjunct for controlling pain in patients undergoing TKA.

High-dose (3 g) topical tranexamic acid has higher potency in reducing blood loss after total knee arthroplasty compared with low dose (500 mg): a double-blind randomized controlled trial.

BACKGROUND: Topical intra-articular tranexamic acid (IA-TXA) has been proven to be safe and effective in reducing postoperative blood loss after primary total knee arthroplasty (TKA). The objective of this study was to investigate the efficacy of high dose (3 g) compared with low dose (500 mg) of IA-TXA in postoperative blood loss after primary TKA. METHODS: A double-blind randomized controlled trial was conducted in 80 patients who had undergone primary TKA. The patients were divided into two groups according to intra-articular TXA doses: high-dose group (3 g IA-TXA) and low-dose group (500 mg IA-TXA). The drug was injected into the joint capsule after fascial closure without suction drainage. The primary outcomes were maximum hemoglobin drop (g/dL) and calculated total blood loss (mL). Postoperative blood transfusions, thromboembolic events and functional outcomes were also recorded. RESULTS: The mean maximum hemoglobin drop was 1.3 g/dL lower in 3 g IA-TXA group compared to the 500 mg IA-TXA group [1.7 vs 3.0 g/dL, 95% confidence interval (CI) 0.9-1.7 g/dL, P < 0.001]. The 3 g IA-TXA group had 370 mL less calculated total blood loss compared to the 500 mg IA-TXA group (551 vs 921 mL, 95% CI 252-489 mL, P < 0.001). One patient in the 500 mg IA-TXA group required transfusion, while no patient in the 3 g IA-TXA group received transfusion (P = 0.31). Any thromboembolic event was not found, and functional outcome was similar between the two groups. CONCLUSIONS: Application of high-dose, 3 g topical IA-TXA was 43% more effective in reducing postoperative blood loss compared with low dose of 500 mg in primary TKA. Optimal doses in between the above two doses may be a worthwhile further investigation.

Rotational component alignment in patient-specific total knee arthroplasty compared with conventional cutting instrument.

BACKGROUND: Although many studies investigated the accuracy of customized cutting block (CCB), the data on rotational alignment are still lacking. The study aimed to assess whether CCB improved the component rotational position compared with conventional cutting instrument (CCI) using computed tomography scanning. METHODS: Eighty-six of 102 total knee arthroplasties from the previous randomized study were analyzed. The outcomes were rotational position of the femoral and tibial components, frequency of outliers and intra-class correlation coefficient. RESULTS: The mean femoral component rotation was not different between CCB versus CCI: 0.9° ± 0.8° versus 1.1° ± 1.1° (P = 0.29). Both groups had similar outlier frequencies: 2% (CCB) versus 2% (CCI) (P = 0.74). CCB had nearly 1° less mean tibial component deviation compared with CCI (P < 0.001): (1) dorsal tangent reference (DTR): 0.7° ± 0.8° versus 1.5° ± 1.0°, and (2) tibial trans-epicondylar reference (TTR): 0.5° ± 0.9° versus 1.4° ± 1.1°. Outlier frequencies were similar: (1) DTR: 0% CCB versus 5% CCI (P = 0.24), and (2) TTR: 5% in CCB versus 12% CCI (P = 0.20). Measurements based on tibial tubercle showed that CCB had ~ 1.4° less mean tibial component deviation compared with CCI: 0.3° ± 1.4° versus 1.7° ± 1.6° (P < 0.001) with a corresponding, less frequency of outliers: 0% versus 19% (P = 0.002). However, there was poor intra-observer reproducibility (0.61). CONCLUSIONS: CCB did not improve femoral component rotational alignment compared with CCI nor affect outlier frequency, but it marginally improved the accuracy of tibial rotational alignment. The tibial tubercle reference point had poor intra-observer reproducibility.

Comparison of Customized Cutting Block and Conventional Cutting Instrument in Total Knee Arthroplasty: A Randomized Controlled Trial.

BACKGROUND: Customized cutting block (CCB) was designed to ensure the accurate alignment of knee prostheses during total knee arthroplasty. Given the paucity of CCB efficacy data, we compare CCB with conventional cutting guide using a randomized controlled trial. METHODS: One hundred eight osteoarthritic knee patients underwent total knee arthroplasty by one experienced surgeon were randomized to receive CCB (n = 54) or conventional cutting instrument (CCI) surgery (n = 54). The primary outcomes were limb alignment, prostheses position, and operative time. The secondary outcomes were hemodynamic alteration after surgery, functional outcomes (modified Western Ontario and McMaster University Osteoarthritis Index) and range of motion at 2 years after surgery. RESULTS: Mean hip-knee-ankle angle in the CCB group was 179.4° ± 1.8° vs 179.1° ± 2.4° in the CCI group, Δ = 0 (95% confidence interval [CI] -0.6 to 1.1, P = .55). Mean operative time was faster in the CCB arm: 93 ± 12 vs 104 ± 12 minutes, Δ = 11 (95% CI -16.7 to -7.2, P < .0001). There were no differences in hemodynamic parameters, mean blood loss (446 [CCB] vs 514 mL [CCI], Δ = -68 [95% CI -138 to 31 mL, P = .21]), postoperative hemoglobin changes, incidence of hypotension (systolic <90 mm Hg), oliguria, and rates of blood transfusion. Functional outcomes and range of motion were also similar. CONCLUSION: There was no improvement in alignment, hemodynamic changes, blood loss, and knee functional outcomes. CCB reduced surgical time by 11 minutes in our population. CCB cost-effectiveness should be further investigated.

Is Regular Knee Radiograph Reliable Enough to Assess the Knee Prosthesis Position?

BACKGROUND: Proper knee alignment and prosthesis position may theoretically provide better surgical results and increase longevity of total knee arthroplasty. The 3-feet standing long radiograph (LR) is the gold standard for assessment of these parameters. However, the conventional standing regular knee radiograph (RR) is still being used because of convenience and lower cost. We conducted a study to investigate the accuracy of RR compared to LR in assessing the coronal plane prosthesis position. METHODS: We conducted a retrospective cross-sectional study in 100 knee radiographs in 88 patients with knee prostheses. The picture archiving and communications system was used to produce digitized radiographs and perform the angle measurements. LR images were cropped to the same size as the RRs to eradicate rotation error. The femoral component angle (FCA), tibial component angle (TCA), and tibiofemoral angle (TFA) were measured and analyzed by Student t-test. Pearson's correlation coefficient was used to assess interobserver and intraobserver reliability. RESULTS: The RR measurements resulted in a mean increment of 1.3° (95% confidence interval [CI], 0.9°-1.6°; P < .001) for FCA and 1.4° (95% CI, 1.0°-1.9°; P < .001) for TFA compared to LR. The TCAs were similar between 2 techniques (0.2° mean difference; 95% CI, 0°-0.4°; P = .11). RR provided very strong intraobserver reproducibility but only strong interobserver reliability for FCA and TCA while LR provided very strong correlation for all angles. CONCLUSION: RR overestimation of FCA and TFAs in a valgus alignment was minimal, suggesting RR could be an acceptable alternative to LR.

Electric cautery does not reduce blood loss in primary total knee arthroplasty compared with scalpel only surgery a double-blinded randomized controlled trial.

PURPOSE: The purpose of this study was to systematically compare blood loss between the electric cautery and scalpel used in primary total knee arthroplasty (TKA). METHODS: We performed a double-blind trial randomizing osteoarthritic knee patients undergoing unilateral TKA done by either using scalpel (group S) or cautery (group C). Primary outcomes were total blood loss calculated from maximum haemoglobin drop and blood loss collected in drain. Secondary outcomes were systemic inflammatory response (serum C-reactive protein), wound complications, and functional outcomes assessed over three months. RESULTS: A total of 80 patients were recruited. Group S had similar calculated total blood loss compared to group C (1070 (S) vs 1128 (C) mL, 95% CI - 219 to 103, p = 0.47). There was no difference in the mean drain-collected blood loss between the two groups (443 (S) vs 486 (C) mL, 95% CI - 128 to 47, p = 0.36). Group C had higher serum C-reactive protein level at 48 hours after TKA compare to group S (105 vs 140 mg/dL, 95% CI - 66 to - 4, p = 0.03). Wound complications and functional outcomes at three months were also similar between the two groups. CONCLUSIONS: Using electric cautery does not reduce total blood loss as we thought it would be in primary TKA compare to scalpel only surgery and it is also associated with a greater systemic inflammatory response. Cautery used in TKA which operated under tourniquet may not be worthwhile for the risk of hazardous smoke and the increasing cost.

Periarticular multimodal drug injection is better than single anesthetic drug in controlling pain after total knee arthroplasty.

BACKGROUND: Postoperative pain is one of the issues that concern most patients after total knee arthroplasty (TKA). Periarticular multimodal drug injection and single anesthetic agent injection have been shown to effectively reduce postoperative pain. The purpose of this study was to compare the efficacy between multimodal drug injection and single anesthetic drug injection in controlling pain after TKA using a double-blinded randomized controlled trial. METHODS: Sixty-four osteoarthritic patients who underwent primary TKA were randomized into two groups. The multimodal drug injection group (group M) received levobupivacaine 150 mg, ketorolac 30 mg and morphine 5 mg, while the single anesthetic drug injection group (group S) received only levobupivacaine 150 mg. The primary outcomes were pain level (VAS), quantity of opioid consumption (mg) and time to request the first dose of analgesic drug (min). RESULTS: Multimodal drug injection provided lower pain level in the first 4 h after surgery (VAS rest: 30 vs 46, p = 0.02; VAS motion: 45 vs 66, p = 0.03). They consumed less morphine mostly in the first 8 h after surgery (5 vs 12 mg, p < 0.0001) and had approximately 2 h longer time to request the first dose of analgesic drug (254 vs 148 min, p = 0.02). CONCLUSIONS: Multimodal drug injection decreases pain level, reduces morphine consumption in the early postoperative period and prolongs the analgesic effect compared to single anesthetic drug. One may consider using single anesthetic agent only in patients who have high risk of opioid or NSAIDs side effect.

Improved participants' understanding of research information in real settings using the SIDCER informed consent form: a randomized-controlled informed consent study nested with eight clinical trials.

PURPOSE: This study aimed to test the applicability and effectiveness of the principles and informed consent form (ICF) template proposed by the Strategic Initiative for Developing Capacity in Ethical Review (SIDCER) across multiple clinical trials involving Thai research participants with various conditions. METHODS: A single-center, randomized-controlled study nested with eight clinical trials was conducted at Thammasat University Hospital, Thailand. A total of 258 participants from any of the eight clinical trials were enrolled and randomly assigned to read either the SIDCER ICF (n = 130) or the conventional ICF (n = 128) of the respective trial. Their understanding of necessary information was assessed using the post-test questionnaire; they were allowed to consult a given ICF while completing the questionnaire. The primary endpoint was the proportion of the participants who had the post-test score of ≥80%, and the secondary endpoint was the total score of the post-test. RESULTS: The proportion of the participants in the SIDCER ICF group who achieved the primary endpoint was significantly higher than that of the conventional ICF group (60.8 vs. 41.4%, p = 0.002). The total score of the post-test was also significantly higher among the participants who read the SIDCER ICF than those who read the conventional ICF (83.3 vs. 76.0%, p < 0.001). CONCLUSIONS: The present study demonstrated that the SIDCER ICF was applicable and effective to improve Thai research participants' understanding of research information in diverse clinical trials. Using the SIDCER ICF methodology, clinical researchers can improve the quality of ICFs for their trials.

Moving a skin incision to lateral side of tibial tubercle reduces the risk of persistent skin numbness compared with a regular midline one: A randomized paired study in bilateral total knee arthroplasty.

BACKGROUND: The midline incision during total knee arthroplasty (TKA) is known to damage the infrapatellar branch of the saphenous nerve (IPBSN), leading to lateral flap numbness. The aim was to evaluate the rate of persistent skin numbness (RSN) and area of skin numbness (AON) after a lateral-based skin incision compared with the standard midline incision in bilateral TKA patients. METHODS: Thirty-six patients undergoing bilateral TKA were included and randomly assigned to receive the lateral skin incision (lateral side of the tibial tubercle) on one knee and the standard midline incision on the contralateral. All other surgical steps were identical. Primary outcomes were the RSN at 1 year and the AON at 6 weeks, 3, 6, and 12 months postoperatively. Kneeling ability test (KAT), operative time, and length of incision were also recorded. RESULTS: The lateral incision had half the RSN at 12 months compared to the midline incision (25% vs 53%; p = 0.01). The median AON at 1-year after surgery was 0 [0-0.5] cm2 in lateral incision vs 4 [0-7.5] cm2 in midline group (p < 0.001). KAT was minimally better in the lateral group at 110° of kneeling between 6-month to 1-year. Operative time and length of incision were similar between both groups. CONCLUSION: The lateral skin incision reduced RSN by approximately 50% compared with the midline incision. The AON in lateral incision was 4 cm2 smaller than midline at 1-year after surgery. Moving a skin incision more lateral may be considered to minimize the numbness after TKA.

Is pain after TKA better with periarticular injection or intrathecal morphine?

BACKGROUND: Postoperative pain after TKA is a major concern to patients. The best technique to control pain is still controversial. Intrathecal morphine or periarticular multimodal drug injection are both commonly used and both appear to provide better pain control than placebo, but it is unclear whether one or the other provides better pain control. QUESTIONS/PURPOSES: We asked whether intrathecal morphine or periarticular multimodal drug injection provides better pain control with fewer adverse events. METHODS: In a prospective, double-blind, randomized controlled trial we randomized 57 patients with osteoarthritic knees who underwent TKAs into two groups. Group M (n = 28) received 0.2 mg intrathecal morphine while Group I (n = 29) received periarticular multimodal drug injection. Postoperative pain was managed with patient-controlled analgesia using ketorolac. The outcomes were pain levels, the amount of analgesic drug used, and drug-related side effects. Patients and evaluators were blinded. All patients were followed up to 3 months. RESULTS: We found no difference in postoperative pain level, analgesia drug consumption, blood loss in drain, and knee function. More patients in Group M required antiemetic (19 [69%] versus 10 [34%]) and antipruritic drugs (10 [36%] versus three [10%]) than patients in Group I. CONCLUSIONS: The two techniques provide no different pain control capacity. The periarticular multimodal drug injection was associated with lower rates of vomiting and pruritus.

Recurrent eccrine poroma with malignant transformation and bony involvement of the foot: a case report and review of the literature.

OBJECTIVE: Eccrine poroma is a benign appendage tumor showing either eccrine or apocrine differentiation. However malignant transformation of this tumor is very rare. The present report demonstrated a case of the eccrine poroma with malignant transformation and its rarity in terms of its high degree of recurrences and its aggressiveness with bony invasion. CASE REPORT: A 67-year old female had a mass on plantar surface of 4th-5th intermetatarsal area of her left foot for 10 years with three recurrent episodes following excisions at local hospital with no pathological report. She was referred to our institute. A recurrent tumor was removed again with pathological findings as eccrine poroma with incomplete excision; however; the patient had a failure to follow-up. Four years later; she was back in our center again with 5th episode of recurrent tumor which was marginally excised with pathological findings revealing a malignant transformation of eccrine poroma with close resected margins. Unfortunately, the patient failed to follow-up again. Eventually, four years later she returned to our institute with 6th recurrent episode of tumor. Incisional biopsy was performed with pathological findings as appendage tumor with eccrine differentiation. Wide resection including removal of 5th metatarsal head-and-neck was performed due to aggressive behaviors of this tumor; particularly; history of malignant findings and multiple recurrences, significantly bony invasion. Final pathologicalfindings were malignant eccrine poroma with close resected margin. There were no metastases in evidence from all investigations. Local irradiation with the aim of eradication of microscopically residual tumor was initiated. CONCLUSION: Malignant transformation is a rare occurrence of eccrine poroma. It should be initially included in differential diagnoses, especially in a patient with long standing foot lesion or history of recurrent masses. Wide excision is recommended as basis treatment, especially in a patient with high likelihood of recurrences or positive malignant transformation.

Modified uniportal endoscopic plantar fasciotomy: a technical report.

OBJECTIVE: Several authors have reported the benefits of the recent procedure of the dual portal endoscopic plantar fasciotomy (EPF). However, very little is known concerning its potential capability via the single portal EPF without special cutting device. The present study aimed to demonstrate the effectiveness of uniportal EPF in a patient with severe intractable plantar fasciitis following a failure of several conservative treatments. The recent technique; uniportal EPF under modified method, without a special cutting device, was reviewed in an effort to improve its capability for plantar release and to provide information for the avoidance of this procedure's complications. CASE REPORT: A patient, with the recalcitrant conditions and the progression of the severe plantar fasciitis of bilateral feet after a failure of the conservative treatments for 13-month period, was included in this report. All data of the preoperative and each successive postoperative period (1, 6 months and last follow-up) were prospectively collected including American Orthopedic Foot and Ankle Society (AOFAS) score, Visual Analogue Scale-Foot and Ankle (VAS-FA) score and any related complications. The operations were carried out by a single surgeon with the modified uniportal EPF via a simple hooked soft-tissue blade, without a special cutting device, on both feet simultaneously. All feet had uniportal EPF with transection of the medial 50% of the plantar fascia. Postoperatively, a patient was instructed to have partial-weight bearing for the first 2 weeks with wearing of full-length silicone insoles. Then, she is allowed to start to fully weightbear with the insoles. She is advised to cautiously return to daily activities and works at 2nd week after the operation. In regard to the EPF in two feet, there were clearly improvements in the comparison between preoperative and last follow-up period in terms of the increasing AOFAS scores, and VAS-FA scores. There were no significant iatrogenic-related complications including the lateral column pain in the present report. CONCLUSION: The recalcitrant condition of severe plantar fasciitis is not uncommon for several orthopedic surgeons. Regarding the emerging of several minimally invasive procedures for this condition, our modified uniportal EPF with a simple device was encouraging as a treatment option in releasing the plantar fascia with satisfactory effectiveness and lower risks of complications.

Hallux valgus correction using a Mini TighTrope device: a report of the short-term outcomes in 3 feet.

OBJECTIVE: Bony works seems to be base procedure for hallux valgus correction. Due to the challenge and possible complications of these procedures, these issues generate 'Foot and Ankle Society' to consider alternative procedures. The 'Mini TightRope' (Arthrex, Inc., Naples, FL) or interrosseous suture/button device was introduced in 2007 to address the above mentioned point. Although its feasibility and utilization were attractive, some reports revealed its drawbacks and limitations. The present report is to demonstrate short-term outcomes and information that might be useful for avoidance of potential complications from application of this device. MATERIAL AND METHOD: Three involved-feet in 2 patients with recalcitrant conditions and progressive hallux valgus, with at least a 6-month course of conservative treatment, were included. Limitation criteria for using 'Mini TightRope' were; non-athletic demand, good bone-stock, moderate severity of their hallux valgus (hallux-valgus-angle (HVA): 30-40, intermetatarsal-angle (IMA): 14-20), no hypermobility of first tarsometatarsal joint, and no signs of degenerative joint disease of first metatarsophalangeal/tarsometatarsal joint. Baseline data, American-Orthopaedic-Foot-and-Ankle-Society (AOFAS) scores, Visual-Analogue-Scale Foot-and-Ankle (VAS-FA) scores (including radiographic parameters) were collected at pre- and post-operative periods. The operations were carried out by a single surgeon. Precision in the creation of the interosseous-tunnel between 1st-2nd metatarsals was critical for this device. All patients strictly followed a similar postoperative-protocol, with austere prohibition of premature weight-bearing at forefoot-and-midfoot areas in 1-month postoperative-period. RESULTS: Although pre-postoperative (6-month) AOFAS/VAS-FA scores and radiographic angular differences were nonsignificant as to p-value: 0.10, there were satisfactory improvements of all scores and angular values in all postoperative periods. Patient number-two reported some tightness at 1st-2nd intermetatarsal area on left-foot. This was controlled with oral-medications in 1-month postoperative-period. Besides, there were no significant complications in the present report. CONCLUSION: 'Mini TightRope' might be of merit in hallux valgus correction for well-selected patients provided that technical implementation is precise and postoperative-protocol is followed with proper discipline.

Lumbar Epidural Corticosteroid Injection Reduces Subacute Pain and Improves Knee Function in the First Six Weeks After Total Knee Arthroplasty: A Double-Blinded Randomized Trial.

BACKGROUND: Pain control immediately following total knee arthroplasty (TKA) has been a focus for orthopaedists. However, control of subacute pain, which may persist up to 3 months, is usually not optimized. The efficacy of epidural corticosteroids in reducing pain after surgery is documented, but data on their efficacy in controlling subacute pain after TKA are lacking. Our aim was to investigate the efficacy of an epidural corticosteroid in controlling pain in the first 3 months following TKA using a double-blinded randomized clinical trial. METHODS: One hundred and eight patients with osteoarthritis of the knee who underwent TKA and received analgesic drugs through an epidural catheter for 48 hours were randomized to receive either 40 mg (1 mL) of triamcinolone acetonide plus 5 mL of 1% lidocaine, or 6 mL of 1% lidocaine alone before catheter removal. The outcomes of interest were pain level during motion and at rest, knee function, and range of motion, which were recorded up to 3 months after surgery. Multilevel regression models were used to estimate the differences between groups. RESULTS: The corticosteroid + lidocaine group had a lower average level of pain during motion compared with the lidocaine-only group, as measured by a visual analog scale (VAS), from day 3 to 7 weeks postoperatively (p < 0.05). At 7 weeks, the mean difference was -7 points (95% confidence interval [CI], -12.8 to -1.0 points; p = 0.033). The corticosteroid + lidocaine group also had a better mean overall modified Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) score at 6 weeks postoperatively (28 compared with 33 points; 95% CI, -8.6 to -0.6 points; p = 0.03). There was no difference between the groups in the level of pain at rest and knee range of motion during the 3-month period (p > 0.05). CONCLUSIONS: Lumbar epidural corticosteroid injection reduced pain during motion for 7 weeks and provided better knee function at 6 weeks postoperatively compared with lidocaine alone. There was no difference detected with respect to pain at rest and knee range of motion during the 3-month follow-up. Epidural corticosteroids could improve patient satisfaction during the early weeks of recovery after TKA. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.