scholarly journals Assessment of blood loss in total knee arthroplasty depending on the type of the endoprosthesis

2018 ◽  
Vol 25 (3-4) ◽  
pp. 36-41
Author(s):  
A. I Abelevich ◽  
O. M Abelevich ◽  
A. V Marochkov
Keyword(s):  
Total Knee Arthroplasty ◽  
Blood Loss ◽  
Knee Arthroplasty ◽  
Weight Bearing ◽  
Hemoglobin Level ◽  
Postoperative Blood Transfusion ◽  
Total Knee ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Introduction. In the modern conditions arthroplasty of joints has become one of the main methods of treatment that enables to restore joint movements, weight bearing ability and quickly return the patient to an active lifestyle. Total knee arthroplasty (TKA) is accompanied by a significant blood loss resulting in a decrease of hemoglobin level and higher requirements in postoperative blood transfusion. Purpose of the study: to estimate the volume of blood loss in patients after total knee arthroplasty depending on the design of the endoprosthesis. Patients and methods. Retrospective study included 73 patients with stage 3 gonarthrosis by Kosinskaya. All patients were divided into groups: in group 1 (n=50) the standard total cemented knee joint endoprosthesis; in group 2 (n=23) - the associated rotational constructions were used. Hemoglobin and hematocrit tests were performed prior to and in 24 hours after operation. The volume of intra- and postoperative (in 24 hours) blood loss was calculated by the of hemoglobin balance formula. Results. In 24 hours after operation the hemoglobin level was 122.5 ± 9.6 g/l in patients from group 1 and 105.1±8.2 g/l (p=0.001) in patients from group 2. The difference in hemoglobin levels in patients within group 1 was 10.5±6.6 g/l, within group 2 - 28.5±7.5 g/l (p=0.006). The volume of intra- and postoperative (in 24 hours) blood loss for the 1st and 2nd patient groups of made up 420.5±276.7 ml, in group 2 it was 1163.0±302.5 ml (p

scholarly journals Evaluation of the Clinical Efficacy of Using Thermal Camera for Cryotherapy in Patients with Total Knee Arthroplasty: A Prospective Study

Medicina ◽  
2019 ◽  
Vol 55 (10) ◽  
pp. 661 ◽  
Author(s):  
Zekeriya Okan Karaduman ◽  
Ozan Turhal ◽  
Yalçın Turhan ◽  
Zafer Orhan ◽  
Mehmet Arican ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Postoperative Period ◽  
Thermal Camera ◽  
Prosthesis Infection ◽  
Total Knee ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Background and objectives: Cryotherapy is a method of treatment using cold application. This study aimed to evaluate postoperative clinical and hematological parameters and pain associated with total knee arthroplasty in patients and compared cryotherapy to the conventional method of cold ice pack compressions. Materials and Methods: Between January 2015 and January 2016, 90 patients who underwent total knee arthroplasty for grade 4 gonarthrosis were prospectively evaluated. The patients were divided into three groups (n = 30, each): Group 1, cryotherapy was applied in the pre- and postoperative periods; Group 2, cryotherapy was applied only in the postoperative period; and Group 3 (control group), only a cold pack (gel ice) was applied postoperatively. In all groups, pre- and postoperative evaluations at 6, 24, and 48 h, hemorrhage follow-up, knee circumference measurement, visual analog scale pain score, knee circumference, and temperature measured by thermal camera were recorded. Results: Of the 90 patients, 10% were men and 90% were women. The mean age was 64.3 ± 8.1 (range: 46–83) years. The patella upper end diameter values were significantly lower in the postoperative period in Groups 1 and 2 than in Group 3 (p = 0.003). Hemoglobin levels at 24 and 48 h postoperatively were significantly lower in Group 3 than in Group 1 (p < 0.001, each) and Group 2 (p = 0.038, p < 0.001). At 6, 24, and 48 h follow-ups, pain values were significantly lower in Group 2 than in Group 3 (p < 0.001). Preoperative 6, 24, and 48 h temperature values were significantly lower in Group 1 than in Group 3 (p < 0.001 for each). It was found that the difference between preoperative and postoperative knee flexion measurements was significantly different in both groups or the difference between the groups was changed in each period (p < 0.001). Conclusions: Postoperative cryotherapy is a potentially simple, noninvasive option and beneficial for the reduction of reducing pain, bleeding, length of stay, analgesic requirement and swelling after total knee arthroplasty. Moreover, there was no early or late prosthesis infection in cryotherapy groups, which may be considered as an additional measure to prevent prosthesis infection.

Does Not Use of Closed Suction Drainage in Total Knee Arthroplasty with Tranexamic Acid Reduce Blood Loss?

2020 ◽  
Vol 22 (5) ◽  
pp. 343-352
Author(s):  
Naci Ruşen Senih Ayan ◽  
Yavuz Akalın ◽  
Nazan Çevik ◽  
Harun Sağlıcak ◽  
Burak Olcay Güler ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Blood Transfusion ◽  
Blood Loss ◽  
Tranexamic Acid ◽  
Hospital Stay ◽  
Knee Arthroplasty ◽  
Length Of Hospital Stay ◽  
Total Knee ◽  
Group 2 ◽  
Group 1

Background. The aim of this study was to compare outcomes in patients who received intravenous tranexamic acid just before and after total knee arthroplasty with or without drains and to analyze whether there is any difference in terms of blood loss. Material and methods. This is a retrospective analysis of prospectively collected data of patients undergoing unilateral total knee arthroplasty. Between March 2017 and March 2019, 97 knees of 94 consecutive patients with osteoarthritis were divided into two groups (Group 1, with drain; and 2, without drain). Drainage group (53 knees; average age, 66,1±7,0 years; male, 10; female, 43) and a drainless group (44 knees; average age, 63,7± 7,5 years; male, 4; female, 40). All patients received systemic tranexamic acid (in 100 mL saline infusion iv in 30 minutes prior to the tourniquet inflation and 3 hours after the operation). Blood loss, allogeneic blood transfusion rates, complications such as swelling of the cruris, infection (deep or superficial), thromboembolic incidents (Deep venous thrombosis or pulmoner thromboembolism) and length of hospital stay were assessed postoperatively. Results. There was no difference in demographic parameters, body mass index, side ofsurgery, ASA score and anesthesia type between 2 groups. The preoperative Hb levels were comparable but on the postoperative day one, Hb level was lower in the drain group (p=0,017). Total blood loss (TBL) and allogeneic transfusion rates were lower in the drainless group, although did not differ significantly between the two groups [TBL: 1360,9±502,5 / 646,1-2641,6 (1251,6) mL in the Group 1, 1205,6±505,0 / 396,6-2521,0 (1157,5) mL in Group 2 (p=0,134); Transfusion rates: 11 out of 53 cases (%20,8) in group 1 and 5 out of 44 cases (%11,4) in group 2]. The infection rate and length of hospital stay were lower in the drainless group. But there were no statistical difference was found in terms of complications and length of hospital stay between 2 groups. Conclusions. 1. Performing Total Knee Arthroplasty with preoperative and postoperative ivtranexamic acid and without drain decreased postoperative reduction in Hb level on the day after surgery in the current study. 2. But blood loss and blood transfusion rates when compared to patients with drain, no significant difference was found. 3. Drain use in knee replacements does not offer an advantage over drainless TKAs regarding the findings of our study. 4. Future studies with longer follow-up are needed in our opinion.

scholarly journals Preemptive Analgesia in Total Knee Arthroplasty: Comparing the Effects of Single Dose Combining Celecoxib with Pregabalin and Repetition Dose Combining Celecoxib with Pregabalin: Double-Blind Controlled Clinical Trial

2018 ◽  
Vol 2018 ◽  
pp. 1-6 ◽  
Author(s):  
Andri M. T. Lubis ◽  
Rangga B. V. Rawung ◽  
Aida R. Tantri
Keyword(s):  
Clinical Trial ◽  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Preemptive Analgesia ◽  
Controlled Clinical Trial ◽  
Double Blind ◽  
Significant Difference ◽  
Total Knee ◽  
Group 2 ◽  
Group 1

Acute pain is the most common early complication after total knee arthroplasty causing delayed mobilization and increased demands of morphine, leading to higher operative cost. Several studies have assessed the effectiveness, side-effects, and ease of use of various analgesics. Preemptive analgesia with combined celecoxib and pregabalin has been reported to yield positive outcomes. In this randomized, double-blind controlled clinical trial, 30 subjects underwent surgery for total knee arthroplasty using 15-20mg bupivacaine 5% epidural anesthesia. All subjects were divided into three groups. Group 1 was given celecoxib 400mg and pregabalin 150mg 1 hour before the operation, Group 2 was given celecoxib 200mg and pregabalin 75mg twice daily starting from 3 days before the operation, and Group 3 was given a placebo. The outcome was measured with Visual Analog Scale, knee range of motion, and postoperative mobilization. There was a significant difference in postoperative morphine usage between the groups that were administered with preemptive analgesia and the placebo group, but no significant difference was found between Group 1 and Group 2 that were given preemptive analgesia at different doses. ROM and postoperative mobilization were not significantly different among the three groups. Two patients in the first group, one patient in the second group, and one patient in the third group developed nausea. Preemptive analgesia is proven to reduce postoperative usage of morphine independent of the dosage. We recommend the use of combined celecoxib and pregabalin as preemptive analgesia after the total knee arthroplasty procedure. This trial is registered with NCT03523832 (ClinicalTrials.gov).

scholarly journals Survival rate after septic total knee arthroplasty- a comparison of two treatment algorithms

2017 ◽  
Vol 5 (4_suppl4) ◽  
pp. 2325967117S0014
Author(s):  
Clemens Baier ◽  
Günther Maderbacher ◽  
Joachim Grifka ◽  
Hans-Robert Springorum
Keyword(s):  
Total Knee Arthroplasty ◽  
Survival Rate ◽  
Knee Arthroplasty ◽  
Persistent Infection ◽  
Tissue Samples ◽  
Articulating Spacer ◽  
Total Knee ◽  
Group 2 ◽  
Group 1

Aims and Objectives: To date there exists no golden standard of treatment of late periprosthetic joint infection. Different forms of treatment comprise single-stage or two-stage or multiple revisions. Respectively, mid- to long-term results are rare. Materials and Methods: We retrospectively analysed 66 patients with septic total knee arthroplasty treated by two different therapy algorithms: Until 2009 patients were treated routinely by implant removal and implantation of an articulating spacer in combination with at least 6 weeks of antibiotic administration. After an antibiotic-free period of two weeks persistent infection was ruled out by punctation. In case of negative antimicrobial cultures after another 14 days patients were treated by reimplantation (n=36, group 1). After 2009 persistent infection was ruled out by open revision and change of the articulating spacer instead of a punctuation. In case of negative antimicrobial cultures after another 14 days patients were treated by reimplantation (n=30, group 2). After a follow-up of 61 months (group 1), respectively 36 months (group 2), patients and their family doctors were contacted by phone concerning the survival rate of the new implant. Results: In group 1 persistent infection was ruled out in every patient by punctuation. During reimplantation tissue samples of 8 patients (22%) showed positive microbiological results again, within 4 patients with a change of the underlying bacteria. After a follow-up of 61 months 31 patients showed no signs of reinfection of their implant and were not operatively revised (86%). In group 2 all patients were treated with open revision and change of the articulating spacer for at least once. 8 patients showed a change of the underlying bacteria during these procedures. During reimplantation tissue samples of 8 patients (27%) showed positive microbiological results again. After a follow-up of 36 months 27 patients showed no signs of reinfection of their implant and were not operatively revised (90%). The difference between both groups was not significant (p>0.05). Concerning the overall complication rate no significant differences between both groups could be found (p>0.05). Conclusion: Concerning reinfection rate we could not detect significant differences between both groups. Patients of group 2 were treated operatively significantly more often and showed a significantly more frequent change of the underlying bacteria. If these results are confirmed in big cohort studies the elaborate treatment algorithm of open revision and change of the articulating spacer might become dispensable.

scholarly journals Retrospective comparative study of IV+ local tranexamic acid versus IV tranexamic acid only in primary total knee replacement

2021 ◽  
Vol 7 (2) ◽  
pp. 308
Author(s):  
Sanil G. Kamat ◽  
Rohan Dessai
Keyword(s):  
Total Knee Arthroplasty ◽  
Blood Transfusion ◽  
Blood Loss ◽  
Tranexamic Acid ◽  
Knee Arthroplasty ◽  
Blood Transfusions ◽  
Operative Outcomes ◽  
Total Knee ◽  
Retrospective Comparative Study ◽  
Group 1

<p class="abstract"><strong>Background: </strong>The study is to compare the immediate post-operative outcomes with use of intravenous (IV) tranexamic acid (TXA) versus IV and local TXA combination in primary unilateral total knee arthroplasty. Study comprised of 72 cases of tricompartmental knee primary osteoarthritis who have undergone unilateral total knee arthroplasty at Manipal Hospital, Goa from January 2016 to December 2018. The observations for each group was analysed and post op blood loss in drain, fall of haemoglobin levels and need of blood transfusion was recorded. The results were statistically compared. The mean blood loss fall in HB levels and need of blood transfusions revealed statistically significant differences.</p><p class="abstract"><strong>Methods:</strong> Total 72 patients diagnosed with primary tricompartmental osteoarthritis were divided into two groups retrospectively. Group 1 (IV only): 1 gm IV Tranexamic acid bolus 10 min before deflating the tourniquet. Group 2 (IV + Local): 1 gm IV Tranexamic acid bolus 10 min before deflating the tourniquet and 1 gm Tranexamic Acid in 50 ml saline locally at the time of closure.</p><p class="abstract"><strong>Results: </strong>It was observed that higher post op blood loss, higher fall in haemoglobin (HB) levels and higher requirement of blood transfusions were associated with group 1 as compared to 2.</p><p class="abstract"><strong>Conclusions: </strong>The study inferred that the combination of local and systemic tranexamic acid was superior than systemic administration alone with lower post op blood loss, lower rates of blood transfusion and lower fall in haemoglobin levels without any added complications.</p>

Oral tranexamic acid for an additional 24 hours postoperatively versus a single preoperative intravenous dose for reducing blood loss in total knee arthroplasty: results of a randomized controlled trial (TRAC-24)

2021 ◽  
Vol 103-B (10) ◽  
pp. 1595-1603
Author(s):  
Paul Magill ◽  
Janet C. Hill ◽  
Leeann Bryce ◽  
Una Martin ◽  
Al Dorman ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Randomized Controlled Trial ◽  
Blood Loss ◽  
Controlled Trial ◽  
Randomized Controlled ◽  
History Of ◽  
Total Knee ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

Aims In total knee arthroplasty (TKA), blood loss continues internally after surgery is complete. Typically, the total loss over 48 postoperative hours can be around 1,300 ml, with most occurring within the first 24 hours. We hypothesize that the full potential of tranexamic acid (TXA) to decrease TKA blood loss has not yet been harnessed because it is rarely used beyond the intraoperative period, and is usually withheld from ‘high-risk’ patients with a history of thromboembolic, cardiovascular, or cerebrovascular disease, a patient group who would benefit greatly from a reduced blood loss. Methods TRAC-24 was a prospective, phase IV, single-centre, open label, parallel group, randomized controlled trial on patients undergoing TKA, including those labelled as high-risk. The primary outcome was indirect calculated blood loss (IBL) at 48 hours. Group 1 received 1 g intravenous (IV) TXA at the time of surgery and an additional 24-hour postoperative oral regime of four 1 g doses, while Group 2 only received the intraoperative dose and Group 3 did not receive any TXA. Results Between July 2016 and July 2018, 552 patients were randomized to either Group 1 (n = 241), Group 2 (n = 243), or Group 3 (n = 68), and 551 were included in the final analysis. The blood loss did differ significantly between the two intervention groups (733.5 ml (SD 384.0) for Group 1 and 859.2 ml (SD 363.6 ml) for Group 2; mean difference -125.8 ml (95% confidence interval -194.0 to -57.5; p < 0.001). No differences in mortality or thromboembolic events were observed in any group. Conclusion These data support the hypothesis that in TKA, a TXA regime consisting of IV 1 g perioperatively and four oral 1 g doses over 24 hours postoperatively significantly reduces blood loss beyond that achieved with a single IV 1 g perioperative dose alone. TXA appears safe in patients with history of thromboembolic, cardiovascular, and cerebrovascular disease. Cite this article: Bone Joint J 2021;103-B(10):1595–1603.

scholarly journals The Effect of Patient-Specific Instrumentation Incorporating an Extramedullary Tibial Guide on Operative Efficiency for Total Knee Arthroplasty

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Oh-Ryong Kwon ◽  
Kyoung-Tak Kang ◽  
Juhyun Son ◽  
Dong-Suk Suh ◽  
Dong Beom Heo ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Patient Specific ◽  
Surgical Time ◽  
Patient Specific Instrumentation ◽  
Significant Difference ◽  
Total Knee ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

This retrospective study was to determine if patient-specific instrumentation (PSI) for total knee arthroplasty (TKA) leads to shortened surgical time through increased operating room efficiency according to different tibial PSI designs. 166 patients underwent primary TKA and were categorized into three groups as follows: PSI without extramedullary (EM) tibial guide (group 1, n=48), PSI with EM tibial guide (group 2, n=68), and conventional instrumentation (CI) group (group 3, n=50). Four factors were compared between groups, namely, operative room time, thickness of bone resection, tibial slope, and rotation of the component. The mean surgical time was significantly shorter in the PSI with EM tibial guide group (group 2, 63.9±13.6 min) compared to the CI group (group 3, 82.8±24.9 min) (P<0.001). However, there was no significant difference in the PSI without EM tibial guide group (group 1, 75.3±18.8 min). This study suggests that PSI incorporating an EM tibial guide may lead to high operative efficiency in TKA compared to CI. This trial is registered with KCT0002384.

scholarly journals Use of a Spacer Block Tool for Assessment of Joint Line Position during Revision Total Knee Arthroplasty

2021 ◽  
Author(s):  
Harun R. Gungor ◽  
Nusret Ok
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Three Dimensional ◽  
Computer Software ◽  
Revision Total Knee Arthroplasty ◽  
Joint Line ◽  
Contralateral Knee ◽  
Total Knee ◽  
Group 2 ◽  
Group 1

AbstractThere is a tendency of orthopaedic surgeons to elevate joint line (JL) in revision total knee arthroplasty (RTKA). Here, we ascertain the use of the spacer block tool (SBT) to determine JL more accurately for less experienced RTKA surgeons. To perform more precise restoration of JL, an SBT with markers was developed and produced using computer software and three-dimensional printers. The study was planned prospectively to include patients who received either condylar constrained or rotating hinge RTKA between January 2016 and December 2019. To determine JL, distance from fibular head (FH), adductor tubercle (AT), and medial epicondyle (ME) were measured on contralateral knee preoperative radiographs and on operated knee postoperative radiographs. Patients were randomized and grouped according to the technique of JL reconstruction. In Group 1, conventional methods by evaluating aforementioned landmarks and preoperative contralateral knee measurements were used to determine JL, whereas in Group 2, the SBT was used. The main outcome measure was the JL change in revised knee postoperatively in contrast to contralateral knee to compare effective restoration of JL between the groups. Twenty-five patients in Group 1 (3 males, 22 females, 72 years, body mass index [BMI] 32.04 ± 4.45) and 20 patients (7 males, 13 females, 74 years, BMI 30.12 ± 5.02) in Group 2 were included in the study. JL measurements for the whole group were FH-JL = 18.3 ± 3.8 mm, AT-JL = 45.8 ± 4.6 mm, and ME-JL = 27.1 ± 2.8 mm preoperatively, and FH-JL = 20.7 ± 4.2 mm, AT-JL = 43.4 ± 5.2 mm, and ME-JL = 24.7 ± 3.1 mm postoperatively. JL level differences in reference to FH, AT, and ME in Group 1 were 3.6 ± 3.1, 3.6 ± 3.5, and 3.4 ± 3.1 mm, respectively, and in Group 2 were 1.0 ± .0.9, 1.3 ± 1.3, and 1.1 ± 1.3 mm, respectively. There were statistically significant differences between the two groups in JL changes referenced to all of the specific landmarks (p < 0.05). The use of the SBT helped restore JL effectively in our cohort of RTKA patients. Therefore, this tool may become a useful and inexpensive gadget for less experienced and low-volume RTKA surgeons.

scholarly journals Incidence of Suture-Method Catheter Dislocation with Femoral Nerve Block and Femoral Triangle Block after Total Knee Arthroplasty

2021 ◽  
Vol 18 (13) ◽  
pp. 6687
Author(s):  
Bulat Tuyakov ◽  
Mateusz Kruszewski ◽  
Lidia Glinka ◽  
Oksana Klonowska ◽  
Michal Borys ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Nerve Block ◽  
Knee Arthroplasty ◽  
Femoral Nerve Block ◽  
Femoral Nerve ◽  
Opioid Consumption ◽  
Total Knee ◽  
Group 2 ◽  
Femoral Triangle ◽  
Group 1

Catheter dislocation with continuous peripheral nerve blocks represents a major problem in clinical settings. There is a range of factors affecting the incidence of catheter dislocation, including catheter type. This study aimed to assess the incidence of suture-method catheter (SMC) dislocation 24 h after total knee arthroplasty (TKA), with continuous femoral nerve block (CFNB) and continuous femoral triangle block (CFTB), respectively. In the prospective randomized trial, 40 patients qualified for TKA with SMC and were divided into two groups, those who received CFNB (Group 1, n = 20) and those who received CFTB (Group 2, n = 20). After 24 h, the degree of catheter displacement (cm), pain intensity (NRS) and opioid consumption (mg) was assessed. The catheter dislocation rates were found to be 15% in Group 1 versus 5% in Group 2, with the catheter dislocated by 0.83 cm (SD = ±0.87) and 0.43 cm (SD = ±0.67), respectively. There were no differences in NRS score (p = 0.86) or opioid consumption (p = 0.16) between the groups. In each case, a displaced catheter was successfully repositioned by pulling, which clinically resulted in a lower NRS score. The results of the study suggest that CFTB with SMC may be used after TKA with a good effect, as it is associated with low catheter dislocation rates and an adequate analgesic effect.

scholarly journals Does measuring the medial gap before bone resection in total knee arthroplasty provide optimum gap adjustment and prevent bone recutting?

2020 ◽  
Author(s):  
Uğur Tiftikçi ◽  
Sancar Serbest ◽  
Hacı Bayram Tosun ◽  
Seyyid İsa Keskinkılıç ◽  
Cem Yalın Kılınc ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Bone Resection ◽  
Tibial Bone ◽  
Number Of Patients ◽  
Joint Gap ◽  
Measured Resection ◽  
Total Knee ◽  
Group 2 ◽  
Group 1

Abstract PurposeThe aim of this study was to demonstrate that measuring the medial gap before bone resection during total knee arthroplasty (TKA) provides an optimum gap adjustment in varus knees.MethodsPatients were separated into two groups, Group 1 being those whose medial joint gap was measured prior to bone resection and Group 2 comprising those who underwent conventional measured resection technique without measuring. The medial joint gap was measured with a custom-made gap measuring device up to the point that the knee was corrected and aligned along its mechanical axis. Medial joint gap distances, distal medial femoral bone cut thicknesses, amounts of tibial resection calculated, gap internal distances measured after cutting, and the thicknesses of the trial inserts were recorded. A comparison was made between the groups in terms of the number of patients requiring an additional tibial bone cut and the distribution of insert thicknesses.ResultsExtra tibial bone resections performed in two (5.7%) patients in Group 1 and in 10 (28.6%) patients in Group 2. In Group 1, where the medial joint gap was measured, the need for an additional bone resection was statistically less. (p=0.018). In the comparison of distribution of insert size by group, the number of patients on whom an 8 mm insert had been used was significantly greater in Group 1 (p=0.024). ConclusionMeasuring the medial joint gap prior to bone resection in total knee arthroplasty may prevent repeated bone recutting and additional bone resections. Furthermore, we can use this method to avoid the disadvantages of the measured resection technique.

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