scholarly journals The arthroscopic popliteus bypass reconstruction for posterolateral instabilities of the knee - clinical results > 2 year follow up

2020 ◽  
Vol 8 (5_suppl4) ◽  
pp. 2325967120S0030
Author(s):  
Tobias C. Drenck ◽  
Maximilian Müllner ◽  
Achim Preiss ◽  
Lena Alm ◽  
Christian A. Kühne ◽  
...  
Keyword(s):  
Clinical Outcome ◽  
Cruciate Ligament ◽  
Bypass Graft ◽  
Activity Level ◽  
Long Term Results ◽  
Rotational Instability ◽  
Arthroscopic Reconstruction ◽  
The Mean ◽  
Dial Test

Aims and Objectives: Injuries of the posterior cruciate ligament (PCL) are most often accompanied by injuries of the posterolateral corner (PLC) and the ligamentum collaterale fibulare (LCL). This leads to a combined dorsal- and external rotational instability. Prior to this study a novel arthroscopic technique was developed to treat posterolateral injuries (Popliteus Bypass Graft). To date, there are no long term results reported for arthroscopic techniques to treat these injuries. This study evaluated the clinical outcome of patients undergoing this surgery with a minimum follow up of 2 years. Materials and Methods: In the ongoing study, 47 patients with posterolateral instabilities of the knee were treated with an arthroscopic reconstruction of the popliteus bypass graft in combination with a PCL reconstruction. Patients with a minimum follow up of 2 years were included in this study. The clinical outcome was evaluated by subjective and objective scores for stability, pain and activity level: Lysholm, Tegner, KOOS, Dial test, subjective scores (0-10) for function (0 good, 10 poor) und pain (0 no pain, 10 intense pain). The dorsal stability was measured with the rolimeter. Results: At the time of the abstract submission 17 patients where evaluated. The mean age at the time of the operation was 36.8 (±15.5) years, the mean BMI was 27.7 (±5.5). The mean time from the injury to the treatment was 6.9 (±5.3) months. The mean follow up time was 46.35 (±12.7) months. The mean postoperative Lysholm score was 88.7 (± 13.4). The mean Tegner score was 6.0 (±2.2) preoperative and changed to 5.3 (±2.2) postoperative. The KOOS score was evaluated for pain 87.2 (±19.5), symptoms 92.5 (±11.1), daily activity 89.2 (±16.9), function 73.1 (±28.9) and life quality 78.5 (±21.7). The mean Rolimeter measurement for the uninjured knee was 7.16mm (±2.2) compared to the operated side with 8,18mm (±1.7). The VAS score for function was 1.6 (±2.1) and 1.6 (±2.2) for pain. Conclusion: The arthroscopic reconstruction of posterolateral injuries provides good clinical and subjective results after a minimum follow up of 2 years.

scholarly journals Clinical Outcome, Return to Pre-injury Activities and Patients Satisfaction after Open ACL Reconstruction And Arthroscopic Reconstruction; An Experience From A Developing Country

2020 ◽  
pp. 13-17
Author(s):  
Prof. Shehzad Javed ◽  
Dr. Muhammad Farrukh Bashir ◽  
Dr. Zubair Khalid ◽  
Dr. Umair Ahmed ◽  
Prof Amer Aziz
Keyword(s):  
Anterior Cruciate Ligament ◽  
Clinical Outcome ◽  
Acl Reconstruction ◽  
Cruciate Ligament ◽  
Open Technique ◽  
Arthroscopic Reconstruction ◽  
Open Procedure ◽  
Patients Satisfaction ◽  
Anterior Cruciate

Introduction: There are two techniques for reconstruction of anterior cruciate ligament (ACL), open technique and arthroscopic assisted technique. Arthroscopic assisted technique has many advantages over open procedure but it needs more expertise and cost comparatively.The objective of this study is to identify the clinical outcomes on basis of lyshlomknee score (LKS) system and find out patients satisfaction after performing both procedures in two groups separately. Material and Methods: Retrospective analysis of 600 patients undergoing open ACL reconstruction and arthroscopic reconstruction from 2005 to 2018 was done, at the Department of Orthopaedics, Ghurki Hospital, Lahore. We included all those patients who were 18 to 45 years of age and had at least 1 year follow up.

Treatment of Tibial Avulsion Fracture of Posterior Cruciate Ligament by Open Reduction and Internal Fixation

2020 ◽  
Vol 9 (1) ◽  
pp. 17-21
Author(s):  
Ranjib Kumar Jha ◽  
Santosh Thapa
Keyword(s):  
Clinical Outcome ◽  
Internal Fixation ◽  
Functional Outcome ◽  
Posterior Cruciate Ligament ◽  
Open Reduction ◽  
Avulsion Fracture ◽  
Cruciate Ligament ◽  
Avulsion Injury ◽  
The Mean

Background: An avulsion fracture of posterior cruciate ligament from tibial attachment is more common in younger age group. It should be fixed otherwise it may lead to secondary changes in knee. Various techniques and approaches are available to fix posterior cruciate ligament avulsion. Different biomechanical studies have shown that, results both open and arthroscopic methods of fixation of posterior cruciate ligament avulsion by screws are comparable. The purpose of study is to evaluate functional and clinical outcome of open reduction and fixation of posterior cruciate ligament avulsion injury through posteromedial approach. Materials and Methods: The study enrolled 19 cases of isolated posterior cruciate ligament avulsion injury with mean age of 33.21±9.07 year. All cases were treated by open reduction and internal fixation through modified posterior approach. The patients having duration of injury more than 12 weeks were excluded. The minimum follow up duration was 12 months. Results were assessed clinically and radiologically. Final functional outcome was assessed using the Lysholm scoring for knee. Results: The mean duration of follow up was 14±1.85 months. All patients achieved union at 3months. At final follow up the mean range of motion was 125.42±6.37 degree (range 110 to 135 degree) without any extensor lag. The functional outcome assessed by Lysholm scoring system was excellent in 15 cases and good in 4 cases. Conclusion: Open reduction and internal fixation with early range of motion exercises provides good clinical outcome and stable knee.

Tibial tuberosity advancement in 65 canine stifles

2006 ◽  
Vol 19 (04) ◽  
pp. 219-227 ◽  
Author(s):  
J. M. Miller ◽  
C. P. Ober ◽  
O. I. Lanz ◽  
R. A. Martin ◽  
P. K. Shires ◽  
...  
Keyword(s):  
Cruciate Ligament ◽  
Degenerative Joint Disease ◽  
Activity Level ◽  
Tibial Tuberosity ◽  
Joint Disease ◽  
Patellar Ligament ◽  
Cranial Cruciate Ligament ◽  
The Mean ◽  
Owner Satisfaction

SummaryThe tibial tuberosity advancement (TTA) procedure was developed to treat dogs with cranial cruciate ligament deficient stifles. A retrospective, descriptive study was performed on 57 dogs that underwent unilateral or bilateral TTA. Medical records were reviewed and pre-, postoperative and follow-up radiographs were evaluated for patellar ligament-tibial plateau angle (α), distance of the tibial tuberosity advancement and progression of degenerative joint disease. A questionnaire was sent to all owners to obtain their assessment of the procedural outcome. Sixty-five stifles in 57 dogs received a TTA. Mean age was 5.2 ± 2.5 years while mean weight was 39.7 ± 11.9 kg. Eighteen breeds were represented with Labrador retrievers and mixed breeds predominating. The mean duration of lameness prior to surgery was 6.2 ± 6.7 months, with a median lameness score of 3/4. Fifty-nine percent of cases encountered complications, the majority of which were minor. Major post-operative complications were uncommon but consisted of implant failure, tibial crest displacement and medial meniscal tears. The mean radiographic preoperative angle α was 100°, while the postoperative was 95.5°. Mean osteoarthrosis scores were significantly different between preoperative and follow-up radiographs with 67% of cases showing radiographic progression. Seventy percent of owners responded to the survey with overall outcome considered good to excellent in 90%. Activity level was improved in 90% of responses. TTA subjectively appears to be a useful alternative in the management of cranial cruciate ligament disease. Few severe complications were encountered. Good clinical outcome and owner satisfaction was reported with the procedure in this set of cases.

scholarly journals Rotational knee instability, Extra articular technique

2018 ◽  
Vol 6 (12_suppl5) ◽  
pp. 2325967118S0020
Author(s):  
Miguel Lapera ◽  
Facundo Gigante ◽  
Manuel Perez Zabala ◽  
Esteban Adjigogovic ◽  
Francisco Sylvester ◽  
...  
Keyword(s):  
Cruciate Ligament ◽  
Double Bundle ◽  
Rotational Instability ◽  
Inclusion Criteria ◽  
Lateral Tenodesis ◽  
The Mean ◽  
Anterior Cruciate ◽  
Grade 3 ◽  
Mean Time

Objectives: The Associated Extra-Articular Technique (AET) with Lateral Tenodesis (LT) to the current techniques of intra-articular reconstruction of the Anterior Cruciate Ligament (ACL) could potentially improve the laxity of the knee and act synergically in controlling the phenomenon of the pivot displacement in cases of severe rotational instability. Methods: Twenty-two consecutive patients were selected who met all the inclusion criteria and underwent reconstruction of the ACL with double bundle and AET between February 2012 and May 2013. The inclusion criteria in this study was the presence of moderate to severe rotational instability as revealed by a score of pivot test of 2 to 3 (on a scale ranging from 0 = negative, to 3 = subluxation). The least time between trauma and surgery was 3 months, and average age under 40 years old. Results: The mean time of follow-up was 32.4 ± 3.9 months. In all cases, the Lysholm and IKDC test scores improved significantly (p <0.0001). The differential laxity above the average was 8 ± 1.9 mm before surgery and significantly reduced to 0.7 ± 0.8 mm at the last follow-up (p <0.0001). Prior to surgery, patients had a Grade 3 Pivot Shift according to the IKDC criteria. After surgery, 15 patients had turned to a negative Pivot (Grade 0), and 7 patients were Grade 1. Conclusion: The lateral extra-articular reconstruction is generally used to control the internal rotation laxity of the tibia, and we are convinced that the combination of the LT with the reconstruction of the double bundle LCA would reduce the rotational translation during the pivot test.

scholarly journals Outcomes and Return to Sport After Revision Anterior Cruciate Ligament Reconstruction in Adolescent Athletes

2018 ◽  
Vol 6 (4) ◽  
pp. 232596711876488 ◽  
Author(s):  
Michael Saper ◽  
Stephanie Pearce ◽  
Joseph Shung ◽  
Robert Zondervan ◽  
Roger Ostrander ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Patient Satisfaction ◽  
Cruciate Ligament ◽  
Return To Sport ◽  
Activity Level ◽  
Common Mechanism ◽  
Adolescent Athletes ◽  
The Mean ◽  
Anterior Cruciate

Background: The number of adolescent anterior cruciate ligament (ACL) injuries is rising with increased participation in higher level athletics at earlier ages. With an increasing number of primary ACL reconstructions (ACLRs) comes a rise in the incidence of revision ACLRs. Purpose: To evaluate the clinical results of revision ACLR across a group of high-level adolescent athletes with at least 2-year follow-up. Study Design: Case series; Level of evidence, 4. Methods: A retrospective review of 21 adolescent athletes (age range, 10-19 years) who underwent revision ACLR with at least 2-year follow-up was conducted. Patient-reported outcome measures (PROMs) included the International Knee Documentation Committee (IKDC) Subjective Knee Evaluation Form, Lysholm knee scoring scale, Tegner activity level scale, and modified Cincinnati Knee Rating System. Return to sport (RTS) and overall patient satisfaction were also assessed. Results: The mean age at the time of surgery was 16.5 years (range, 14-19 years), and the mean follow-up was 46.4 months (range, 24-97 months); 42.9% of patients were female, and 52.4% of patients participated in collision sports. The mean time to failure after primary ACLR was 13.1 ± 8.0 months, and the most common mechanism of failure was noncontact in at least 66.7% of cases. The revision graft type included bone–patellar tendon–bone (BPTB) in 71.4% of cases; 26.7% of BPTB grafts were from the contralateral extremity. Concomitant procedures were performed for intra-articular lesions in 71.4% of patients. The mean patient satisfaction rate was 95.3%. There were 3 cases of a graft reinjury at a mean of 25 months postoperatively. The mean PROM scores were as follows: IKDC, 87.5 ± 12.7; Tegner, 7.2 ± 2.0; Lysholm, 93.7 ± 9.8; and Cincinnati, 93.4 ± 10.0. Of those attempting to RTS, 68.4% of patients successfully returned at the same level of competition. Patients with a lateral compartment chondral injury were less likely to RTS ( P < .05). Independent variables shown to have no significant relationship to PROMs or RTS included age, follow-up, sport classification, associated meniscal tears, revision graft size/type, and concomitant procedures. Conclusion: Revision ACLR can be an effective surgical option in adolescents participating in collision and contact sports, with good to excellent subjective outcome scores. At a minimum 2-year follow-up, a graft rupture after revision ACLR occurred in 14% of cases. Of the athletes attempting to RTS, 68.4% returned to their preinjury level of competition.

scholarly journals Efficacy of platelet rich plasma injection in treatment of plantar fasciitis

2017 ◽  
Vol 3 (3) ◽  
pp. 451
Author(s):  
Rahul Kadam ◽  
Sukant Vijay ◽  
Abhay Chhallani ◽  
Santosh Pandhare ◽  
Abhishek Gupta ◽  
...  
Keyword(s):  
Growth Factors ◽  
Plantar Fasciitis ◽  
Platelet Rich Plasma ◽  
Healing Process ◽  
Activity Level ◽  
Long Term Results ◽  
Vas Score ◽  
Plasma Injection ◽  
The Mean

<p class="abstract"><strong>Background:</strong> Platelet rich plasma is a recently introduced therapy for treatment of chronic painful conditions in orthopaedics, it acts mainly by promoting healing process. PRP has an increased concentration of platelets which initiate tissue repair by releasing growth factors.<span class="apple-converted-space"> </span>Increased concentrations of autologous platelets yield high concentrations of growth factors, subsequently leading to intensified healing of soft tissue on a cellular level. This study was conducted to evaluate the efficacy of platelet rich plasma injection in treatment of plantar fasciitis<span lang="EN-IN">.</span></p><p class="abstract"><strong>Methods:</strong> This study was conducted on the patients coming to orthopaedic OPD at MGM medical college and hospital, kamothe, Navi Mumbai. Total of 40 planter fasciitis cases were taken in this study. Out these 40 patients 23 were Male and 17 were female. The mean age 45.85 (range 25-75). Patients were followed up for 3 months with regular interval and at each visit vas score was evaluated and noted.Total duration of study was 3 months from October 2016 to December 2016.<strong></strong></p><p class="abstract"><strong>Results:</strong> The mean pre injection vas score was 7.15 (Male – 7.13, Female – 6.70). The mean vas score at time of follow up after one week was 6.20 (Male – 6.22 Female – 6.18). The mean vas score at time of follow up after 6 week was 5.62 (Male – 5.66 Female – 5.70).  The mean vas score at time of follow up after 3 months was 3.20 (Male – 3.13 Female – 3.29)<span lang="EN-IN">. </span></p><p class="abstract"><strong>Conclusions:</strong> PRP in plantar fasciitis shows promising short term results providing patients with gradual sustained pain relief, improving daily function and lifestyle activity level. However long term results needs to be evaluated<span lang="EN-IN">.</span></p>

scholarly journals Transtibial Aperfix System in Reconstruction of ACL Injuries

2014 ◽  
Vol 2 (11_suppl3) ◽  
pp. 2325967114S0020
Author(s):  
Gökay Görmeli ◽  
Cemile Ayşe Görmeli ◽  
Mustafa Karakaplan ◽  
Mehmet Fatih Korkmaz ◽  
Uğur Diliçıkık ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Cruciate Ligament ◽  
Treatment Decision ◽  
Activity Level ◽  
Tunnel Widening ◽  
Arthroscopic Reconstruction ◽  
Radiological Results ◽  
Significant Difference ◽  
Clinical And Radiological Results

Objectives: The aim of this this study was to assess the clinical outcomes and fixation durability of the AperFix (Cayenne Madical, Scottsdale, Arizona) system and to determine the effect of patient’s age in arthroscopic reconstruction of the anterior cruciate ligament. Methods: Patients with symphtomatic anterior cruciat ligament rupture underwent arthroscopic reconstruction. Patients were evaluated in terms of range of motion values; Lysholm, Cincinati and Tegner activity scales; laxity testing and complications. Tunnel widening was assessed by AP and lateral radiographs. Early postoperative and last follow-up radiographs were compared. Results: Fifty-one patients were evaluated at a 29 months (range: 25-34 months) follow-up. Mean age at the surgery was 26.5 ± 7.2 years. Lysholm, Cincinati and Tegner activity scales were significantly higher from preop scores. (Lysholm scores: preop: 51.4 ± 17.2 postop: 88.6 ± 7.7 (p<0.001); Tegner activity scores: preop 3.3 ± 1.38 postop: 5,3 ± 1,6 (p<0,001); Cincinati scores: preop: 44.3±17 postop:81,3 ± 13.9 (p<0.001)). There was no significant difference for knee score, range of motion deficits and femoral tunnel enlargement of the patients with below and above 30 years. Conclusion: According to our results with <30 years and above >30 years patient comparison we think that patient’s age is less important than activity level for the surgical treatment decision. The AperFix system performed satisfactory clinical and radiological results with low complication rate. But long-term clinical and radiological results are needed to decide the ideal ACL reconcstruction method.

Long-term Results of Isolated Anterolateral Bundle Reconstructions of the Posterior Cruciate Ligament

2009 ◽  
Vol 37 (8) ◽  
pp. 1499-1507 ◽  
Author(s):  
Stijn Hermans ◽  
Kristoff Corten ◽  
Johan Bellemans
Keyword(s):  
Cruciate Ligament ◽  
Functional Results ◽  
Long Term Results ◽  
Time Of Surgery ◽  
Anterolateral Bundle ◽  
Graft Choice ◽  
Arthroscopically Assisted ◽  
The Mean

Background Little is known about the parameters that influence the long-term results of isolated arthroscopically assisted reconstructions of the anterolateral bundle of the posterior cruciate ligament (PCL). Hypothesis Chondrosis, time interval from injury to surgery, and graft choice significantly influence the long-term results of single-bundle PCL reconstructions. Study Design Case series; Level of evidence, 4. Methods Between 1995 and 2001, 22 male and 3 female patients with a mean age of 30.8 years (range, 17-52) underwent an anterolateral bundle reconstruction of the PCL for functional instability and pain. Nine were treated with a bone–patellar tendon– bone autograft (BPTB), 15 with a semitendinosus gracilis (STG) autograft, and 1 with an Achilles tendon allograft. Twenty-two patients were clinically and radiographically reviewed at a mean follow-up of 9.1 years (range, 6.5-12.6). Three patients were interviewed by telephone. Thirteen patients had chondrosis at time of surgery. The mean time from injury to surgery was 1.5 years. Results The mean final International Knee Documentation Committee (IKDC), Lysholm, and functional visual analog scale (VAS) scores (65, 75, and 8, respectively) were fair to good and were significantly better than preoperatively (38, 50, and 4, respectively) (P <. 001). The final Tegner (5.7) score was significantly lower than the preinjury score (7.2) (P <. 001). The mean anteroposterior laxity measured by KT-1000 arthrometer and Telos stress radiographs was significantly increased on the operated side (mean side-to-side difference of 2.1 mm and 4.7 mm, respectively). The functional scores were not significantly different between the BPTB and STG reconstructions. Patients without chondrosis at time of surgery and patients operated within the first year from injury had significantly better functional results at final follow-up (P <. 05). Conclusion Arthroscopically assisted reconstructions of the anterolateral bundle of the PCL in patients with symptomatic isolated grade II to IV PCL-deficient knees lead to significantly improved functional results at long term if there is no cartilage damage at time of surgery. Nonoperative treatment should not be extended more than 1 year from injury. Graft choice did not significantly influence the functional outcome at long term.

Clinical Experience with a New Nitinol Self-Expanding Stent in Peripheral Arteries

1996 ◽  
Vol 3 (4) ◽  
pp. 369-379 ◽  
Author(s):  
Michel Henry ◽  
Max Amor ◽  
Rafael Beyar ◽  
Isabelle Henry ◽  
Jean-Marc Porte ◽  
...  
Keyword(s):  
Long Term Results ◽  
Lesion Length ◽  
Secondary Patency ◽  
Peripheral Arteries ◽  
External Compression ◽  
Nitinol Stent ◽  
Nitinol Stents ◽  
The Mean

Purpose: To evaluate a new self-expanding nitinol coil stent in stenotic or occluded peripheral arteries. Methods: Seventy-three symptomatic patients (58 men; mean age 67 years) were treated with nitinol stents for lesions in the iliac artery (9 stenoses); superficial femoral artery (SFA) (39 stenoses, 6 occlusions); popliteal artery and tibioperoneal trunk (9 stenoses, 7 occlusions); and 3 bypass grafts. Mean diameter stenosis was 84.4% ± 9.9% (range 75% to 100%), and mean lesion length was 45 ± 23 mm (range 20 to 120 mm). Results: Eighty-eight 40-mm-long stents with diameters between 5 and 8 mm were implanted percutaneously for suboptimal dilation (n = 45); dissection (n = 21); and restenosis (n = 7). All stents but one were implanted successfully; the malpositioned stent was removed, and another stent was successfully deployed. There were 3 (4.1%) failures due to thrombosis at 24 hours. During the mean 16-month follow-up (range to 44 months), 4 restenoses (3 femoral, 1 popliteal) have occurred; 2 were treated with repeat dilation and 2 underwent bypass. Primary and secondary patency rates at 18 months were 87% and 90%, respectively, for all lesions (iliac: 100% for both; femoral: 85% and 88%; popliteal: 87% and 100%). Conclusions: This new nitinol stent seems to be safe and effective with favorable long-term results, even in distal SFA lesions and popliteal arteries. Its flexibility and resistance to external compression allow its placement in tortuous arteries and near joints.

scholarly journals FRI0418 SELECTIVE PATELLAR RESURFACING IN TOTAL KNEE ARTHROPLASTY FOR THE OSTEOARTHRITIC KNEE: A PROSPECTIVE STUDY

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 807.3-807
Author(s):  
I. Moriyama
Keyword(s):  
Total Knee Arthroplasty ◽  
Clinical Outcome ◽  
Knee Arthroplasty ◽  
Patellofemoral Joint ◽  
Osteoarthritis Of The Knee ◽  
Patellar Resurfacing ◽  
Criterion A ◽  
Total Knee ◽  
The Mean

Background:No widely accepted view or criteria currently exist concerning whether or not patellar replacement (resurfacing) should accompany total knee arthroplasty for osteoarthritis of the knee.1)2)3)Objectives:We recently devised our own criteria for application of patellar replacement and performed selective patellar replacement in accordance with this set of criteria. The clinical outcome was analyzed.Methods:The study involved 1150 knees on which total knee arthroplasty was performed between 2005 and 2019 because of osteoarthritis of the knee. The mean age at operation was 73, and the mean postoperative follow-up period was 91 months. Our criteria for application of patellar replacement are given below. Criterion A pertains to evaluation of preoperative clinical symptoms related to the patellofemoral joint: (a) interview regarding presence/absence of pain around the patella, (b) cracking or pain heard or felt when standing up from a low chair, (c) pain when going upstairs/downstairs. Because it is difficult for individual patients to identify the origin of pain (patellofemoral joint or femorotibial joint), the examiner advised each patient about the location of the patellofemoral joint when checking for these symptoms. Criterion B pertains to intense narrowing or disappearance of the patellofemoral joint space on preoperative X-ray of the knee. Criterion C pertains to the intraoperatively assessed extent of patellar cartilage degeneration corresponding to class 4 of the Outerbridge classification. Patellar replacement was applied to cases satisfying at least one of these sets of criteria (A-a,-b,-c, B and C). Postoperatively, pain of the patellofemoral joint was evaluated again at the time of the last observation, using Criterion A-a,-b,-c.Results:Patellar replacement was applied to 110 knees in accordance with the criteria mentioned above. There were 82 knees satisfying at least one of the Criterion sets A-a,-b,-c, 39 knees satisfying Criterion B and 70 knees satisfying Criterion C. (Some knees satisfied 2 or 3 of Criteria A, B and C).When the pain originating from patellofemoral joint (Criterion A) was clinically assessed at the time of last observation, pain was not seen in any knee of the replacement group and the non-replacement group.Conclusion:Whether or not patellar replacement is needed should be determined on the basis of the symptoms or findings related to the patellofemoral joint, and we see no necessity of patellar replacement in cases free of such symptoms/findings. When surgery was performed in accordance with the criteria on patellar replacement as devised by us, the clinical outcome of the operated patellofemoral joint was favorable, although the follow-up period was not long. Although further follow-up is needed, the results obtained indicate that selective patellar replacement yields favorable outcome if applied to cases judged indicated with appropriate criteria.References:[1]The Effect of Surgeon Preference for Selective Patellar Resurfacing on Revision Risk in Total Knee Replacement: An Instrumental Variable Analysis of 136,116 Procedures from the Australian Orthopaedic Association National Joint Replacement Registry.Vertullo CJ, Graves SE, Cuthbert AR, Lewis PL J Bone Joint Surg Am. 2019 Jul 17;101(14):1261-1270[2]Resurfaced versus Non-Resurfaced Patella in Total Knee Arthroplasty.Allen W1, Eichinger J, Friedman R. Indian J Orthop. 2018 Jul-Aug;52(4):393-398.[3]Is Selectively Not Resurfacing the Patella an Acceptable Practice in Primary Total Knee Arthroplasty?Maradit-Kremers H, Haque OJ, Kremers WK, Berry DJ, Lewallen DG, Trousdale RT, Sierra RJ. J Arthroplasty. 2017 Apr;32(4):1143-1147.Disclosure of Interests:None declared

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