scholarly journals Ring Uncemented Plastic on Metal Hip Replacements-Results from an Independent Unit

1989 ◽  
Vol 82 (3) ◽  
pp. 142-144 ◽  
Author(s):  
D W H Mok ◽  
K M Bryant
Keyword(s):  
Functional Results ◽  
Deep Infection ◽  
Independent Unit ◽  
Hip Replacements ◽  
Excision Arthroplasty ◽  
Femoral Loosening ◽  
Acetabular Loosening

We present 251 Ring uncemented plastic on metal (UPM) hip replacements with a follow-up of 2–5 years. Judging the functional results by the Harris hip evaluation for the surviving 234 hips, 79.8% were good to excellent, 11.7% fair, and 8.5% poor at an average of 3 years. The mortality within one month of surgery was 0.79%. There were 4 cases of deep infection (1.59%), 3 of which required excision arthroplasty. At 3 years, 6 hips (2.39%) had required revision, all for aseptic femoral loosening, 2 of which also had acetabular loosening. Ring UPM hip is both safe and reliable in the hands of many surgeons outside Ring's unit.

Treatment with Circular External Fixation of Bicondylar Tibial Fractures: Potential in Accurate Reduction and Efficacy on Functional Results

2017 ◽  
Vol 31 (05) ◽  
pp. 459-466 ◽  
Author(s):  
Ettore Vulcano ◽  
Lorenzo Bettella ◽  
Rohoman Tasarib ◽  
Tania Tondolo ◽  
Francesco Sala ◽  
...  
Keyword(s):  
External Fixation ◽  
Proximal Tibia ◽  
Articular Surface ◽  
Functional Results ◽  
Deep Infection ◽  
Tibial Fractures ◽  
Surgical Reconstruction ◽  
Radiographic Evaluation ◽  
Bicondylar Fractures

AbstractSurgical reconstruction of bicondylar tibial fractures with external fixation relies on indirect fracture reduction that could affect anatomical restoration. The aim of the present study is to evaluate the radiographic and clinical outcomes of tibial bicondylar fractures treated with circular external fixation. A total of 20 bicondylar fractures of the proximal tibia in 20 patients treated with circular external fixation were included in the study. Two fractures were open. Mean clinical and radiographic follow-up was 37.3 months after frame removal. Angular, translation, and length deformities were assessed on nonweight-bearing anteroposterior, lateral, and two 45 degrees oblique views. The medial proximal tibia (MPTA) and posterior proximal tibia angles (PPTA) were calculated in all cases. The condylar widening was calculated in relation to the width of the femoral condyles. Joint depressions or gaps of the articular surface were identified on the four views of the knee. The modified Hospital for Special Surgery (HSS) knee scoring system was used for clinical evaluation. The MPTA was good in 18 (90%) and fair in 2 patients (10%). The PPTA was good in 13 (65%), fair in 6 (30%), and poor in 1 patient (5%). The articular reduction was good in 12 (60%) and fair in 8 patients (40%). The condylar widening was good in 15 (75%) and fair in 5 patients (25%). Mechanical axis deviation was within the normal range in 11/12 patients (91.7%). All fractures consolidated. One deep infection was successfully treated with local debridement, the mean modified HSS knee score at the latest follow-up was 90.5 (range: 67–100). Articular reconstruction and tibia alignment based on radiographic evaluation in the present study, along with functional results compare favorably with those of external and internal fixation presented in the literature.

scholarly journals Distal Fibula Reconstruction in Primary Malignant Tumours

2021 ◽  
Vol 28 (5) ◽  
pp. 3463-3473
Author(s):  
Adyb Adrian Khal ◽  
Riccardo Zucchini ◽  
Claudio Giannini ◽  
Andrea Sambri ◽  
Davide Maria Donati ◽  
...  
Keyword(s):  
Case Series ◽  
Functional Results ◽  
Deep Infection ◽  
Malignant Tumours ◽  
Distal Fibula ◽  
Vascularized Fibula ◽  
Long Time ◽  
The Mean ◽  
Ankle Biomechanics

(1) Background: Restoration of ankle biomechanics after distal fibula (DF) resection in bone sarcomas can be performed with different techniques. We report the functional and oncological outcomes of a case series; (2) Methods: Ten patients (5 females and 5 males) with a mean age of 27 years (range 10–71) were retrospectively evaluated. Following the resection, different techniques were used to reconstruct the ankle: tibiotalar arthrodesis, residual lateral malleolus fixed to the tibia, non-vascularized or rotational vascularized fibula transposition and intercalary allograft. All complications were recorded, and the functional outcomes were evaluated; (3) Results: The mean follow-up time was 54 months (range, 13–116). Six patients were free of disease while four patients died of disease. All patients had a stable ankle and bone union, which was achieved after a mean of 9.4 months (range 3–20). The mean MSTS Score was 26.7 (range 21–30). Chronic ankle pain and peroneal external nerve palsy were observed. Patients underwent additional surgeries for deep infection and for equinus ankle deformity. No local recurrence was observed. Metastasis occurred in four patients after a mean of 14.7 months (range 2–34); (4) Conclusions: After DF resection, the restoration of ankle biomechanics gives acceptable functional results, but a larger series of patients with long-time follow-up are required to confirm the durability of the reconstruction.

scholarly journals Solving the enigma of posterolateral tibial plateau fractures, the clue protocol

2021 ◽  
Vol 87 (1) ◽  
pp. 125-136
Author(s):  
Radwan G Metwaly ◽  
Zeiad M Zakaria ◽  
Mohamed A Elgebeily ◽  
Hany El Zahlawy
Keyword(s):  
Tibial Plateau ◽  
Soft Tissue Injuries ◽  
Common Peroneal Nerve ◽  
Functional Results ◽  
Deep Infection ◽  
Tibial Plateau Fractures ◽  
Academic Center ◽  
Peroneal Nerve Injury ◽  
Arthroscopically Assisted

The study aim is to evaluate functional and radio- logical outcomes following a suggested protocol based on the four-column classification for management of posterolateral column tibial plateau fractures. A prospective cohort study was performed in level I academic center on 42 patients with mean age of 36 years (22-59). Eleven patients had isolated posterolateral column fractures whereas 31 patients had associated columns fractures. According to the suggested protocol, all cases of isolated posterolateral column fracture started treatment via arthroscopic evaluation of soft tissue injuries (menisci and liga- ments), arthroscopically assisted reduction and inter- nal fixation by rafting screws followed by ORIF if plating was needed. If associated with other columns fractures, columns were fixed sequentially in an anti-clockwise direction starting from anteromedial column. Average follow up was 26 months. Mean time to union was 16.3 (12-22) weeks. No radiological evidence of loss of coronal or sagittal alignment was detected at final follow up. Five patients had an average depression of 5 millimeters that did not need further intervention at this short-term follow up. Mean KOOS was 81 (72- 88). The average knee range of motion was (0° - 127°). One patient had temporary common peroneal nerve injury, one patient had deep infection and two had superficial wound infection. implementing the suggested protocol gives good to excellent radiological and functional results as regard posterolateral tibial plateau fracture. A larger study group with longer follow up is needed.

Laparoscopic simple prostatectomy: complications and functional results after five years of follow-up

2020 ◽  
Vol 72 (4) ◽  
Author(s):  
Matteo Manfredi ◽  
Cristian Fiori ◽  
Dario Peretti ◽  
Federico Piramide ◽  
Enrico Checcucci ◽  
...  
Keyword(s):  
Functional Results ◽  
Simple Prostatectomy

scholarly journals Whole blood chromium concentration is very rarely elevated independently of whole blood cobalt

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Olli Lainiala ◽  
Mari Karsikas ◽  
Aleksi Reito ◽  
Antti Eskelinen
Keyword(s):  
Whole Blood ◽  
Cost Savings ◽  
Chromium Concentration ◽  
Continuous Variables ◽  
Metal Debris ◽  
Screening Guidelines ◽  
Metal On Metal ◽  
Hip Replacements

AbstractDue to the risk of adverse reactions to metal debris resulting from increased wear of the arthroplasty more than one million metal-on-metal (MoM) hip replacements worldwide are in active follow-up. Follow-up usually includes measurement of both whole blood cobalt (Co) and chromium (Cr) concentrations. Our experience is that Cr is seldom independently elevated. We wanted to ascertain whether blood Cr measurements could be omitted from follow-up protocols without lowering the quality of follow-up. We identified 8438 whole blood Co and Cr measurements performed without or prior to revision surgery. When the cut-off levels 5 µg/L and 7 µg/L were used, Cr was independently elevated in only 0.5% (95% confidence interval, CI, 0.3 to 0.6) and 0.2% (CI 0.1 to 0.3) of the measurements. The models with continuous variables showed that the higher the blood metal concentrations are the lower the percentage of measurements with Cr higher than Co. Our results suggest that whole blood Cr is very rarely independently elevated and therefore the authorities should consider omitting Cr measurements from their screening guidelines of MoM hip replacements. We believe this change in practice would simplify follow-up and lead to cost savings without decreasing the quality of follow-up.

Porous tantalum acetabular cups for reconstructions after peri-acetabular resections of primary bone tumours

2021 ◽  
pp. 112070002110015
Author(s):  
Riccardo Zucchini ◽  
Andrea Sambri ◽  
Claudio Giannini ◽  
Michele Fiore ◽  
Carlotta Calamelli ◽  
...  
Keyword(s):  
Bone Tumour ◽  
Hip Dislocation ◽  
Functional Results ◽  
Bone Tumours ◽  
Harris Hip Score ◽  
Porous Tantalum ◽  
Term Survival ◽  
Primary Bone ◽  
Primary Bone Tumours

Introduction: Periacetabular reconstruction after resection of primary bone tumour is a very demanding procedure. They are frequently associated with scarce functional results and a high rate of complications. We report a series of patients with periacetabular resections for primary bone tumours and reconstruction with a porous tantalum (PT) acetabular cup (AC). Materials and methods: 27 patients (median age 30 years) were included, being affected by primary bone tumours of the pelvis and treated with peri-acetabular resection and reconstruction with a PT AC. The diagnoses were 13 osteosarcomas, 7 chondrosarcomas and 7 Ewing sarcomas. Function was assessed with the Harris Hip Score and complications were classified according to Zeifang. Results: The median follow-up was 70 months. 1 patient required removal of the PT AC because of implant associated infection 55 months after surgery. There was 1 hip dislocation and no case of aseptic loosening. At final follow-up, the median HHS was 81 points (range 48–92). Conclusions: The used PT AC had good medium-term survival rates and good functional results. This technique is a viable reconstructive option after resections of periacetabular primary bone sarcomas.

scholarly journals Analysis of the relationship between surgeon procedure volume and complications after total knee arthroplasty using a propensity-matched cohort study

2021 ◽  
Vol 3 (1) ◽  
pp. e000072
Author(s):  
Tosan Okoro ◽  
Sebastian Tomescu ◽  
J Michael Paterson ◽  
Bheeshma Ravi
Keyword(s):  
Total Knee Arthroplasty ◽  
Cohort Study ◽  
Relative Risk ◽  
Knee Arthroplasty ◽  
Deep Infection ◽  
Matched Cohort ◽  
Surgical Infection ◽  
Matched Cohort Study ◽  
Total Knee

ObjectivesThis study aimed to identify a threshold in annual surgeon volume associated with increased risk of revision (for any cause) and deep infection requiring surgery following primary elective total knee arthroplasty (TKA).DesignA propensity score matched cohort study.SettingOntario, Canada.Participants169 713 persons who received a primary TKA between 2002 and 2016, with 3-year postoperative follow-up.Main outcome measuresRevision arthroplasty (for any cause), and the occurrence of deep surgical infection requiring surgery.ResultsBased on restricted cubic spline analysis, the threshold for increased probability of revision and deep infection requiring surgery was <70 cases/year. After matching of 51 658 TKA recipients from surgeons performing <70 cases/year to TKA recipients from surgeons with greater than 70 cases/year, patients in the former group had a higher rate of revision (for any cause, 2.23% (95% Confidence Interval (CI) 1.39 to 3.07) vs 1.70% (95% CI 0.85 to 2.55); Hazard Ratio (HR) 1.33, 95% CI 1.21 to 1.47, p<0.0001) and deep infection requiring surgery (1.29% (95% CI 0.44 to 2.14) vs 1.09% (95% CI 0.24 to 1.94); HR 1.33, 95% CI 1.17 to 1.51, p<0.0001).ConclusionsFor primary TKA recipients, cases performed by surgeons who had performed fewer than 70 TKAs in the year prior to the index TKA were at 31% increased relative risk of revision (for any cause), and 18% increased relative risk for deep surgical infection requiring surgery, at 3-year follow-up.

Constrained liners revisited: favourable mid-term results in patients with high-risk of dislocation: technical considerations for the optimal outcome

2021 ◽  
pp. 112070002110107
Author(s):  
Eustathios Kenanidis ◽  
Panagiotis Kakoulidis ◽  
Panagiotis Anagnostis ◽  
Michael Potoupnis ◽  
Eleftherios Tsiridis
Keyword(s):  
High Risk ◽  
Recurrent Dislocation ◽  
Deep Infection ◽  
Consecutive Series ◽  
Revision Thas ◽  
Hip Stability ◽  
Functional Scores ◽  
Revision Tha ◽  
The Mean

Background: The outcomes of constrained liners (CLs) in total hip arthroplasty (THA) remain inconclusive. We evaluated the mid-term performance of CLs in a consecutive series of high-risk dislocation patients undergoing primary or revision THA performed by a single surgeon. The survival, dislocation rate, complications, and functional patients’ scores were assessed. Surgical tips to enhance outcomes were reviewed. Methods: 45 patients who received the Trident Tripolar CL between 2010 to 2019 were retrospectively evaluated from Arthroplasty Registry Thessaloniki. There were 17 primary and 28 revision THAs. The primary indications for using CL were severe abductor insufficiency or comorbidities, increasing the dislocation risk in primary, and recurrent dislocation or abductor insufficiency in revision THAs. The mean patient’s age was 68.5 (±14.5) years, and the mean follow-up 3.81 (±1.66) years. Results: There were 2 dislocations and 1 deep infection in the revision group. For any reason, the cumulative 6-year survival rate was 93.3%, 100% for primary, and 89.3% for revision THAs. The mean overall CL survival was 76.3 months for any reason (95% CI, 68.1–84.5) and 80.5 months for dislocation (95% CI, 75.8–85.2). The mean postoperative functional scores were significantly improved ( p < 0.001) at the latest follow-up. Conclusions: CLs can provide hip stability and durable fixation in selected low-demand patients with high-risk for dislocation after primary and revision THA at mid-term follow-up. Careful patient selection and the refined surgical technique aiming at the neutral liner position and considering the high CLs’ offset relative to stem-neck impingement are necessary to maximise outcomes.

scholarly journals Profile vs Tubular Plate in Unimalleolar or Bimalleolar Fractures: is There a Real Difference in Wound complications?

2020 ◽  
Vol 5 (4) ◽  
pp. 2473011420S0015
Author(s):  
Paolo Ceccarini ◽  
Rosario Petruccelli ◽  
Michele Bisaccia ◽  
Giuseppe Rinonapoli ◽  
Auro Caraffa
Keyword(s):  
Wound Dehiscence ◽  
Deep Infection ◽  
Ankle Fractures ◽  
Bone Union ◽  
Wound Complications ◽  
Fisher Exact Test ◽  
Superficial Infection ◽  
Operative Care ◽  
Group B

Category: Ankle; Trauma Introduction/Purpose: The aim of our study is to compare two types of plates, one third tubular plate and LCP distal fibula plate, evaluating the clinical outcome and the skin complications associated with their use. Methods: We collected the data of 122 consecutive unimalleolar or bimalleolar fractures treated by internal fixation for a closed, displaced distal closed fibular fracture. Exclusion criteria were: 1) open ankle fractures,2) trimalleolar fractures, 3) previous ankle fractures 4) severe venous insufficiency, 5) ankleosteoarthritis previous to surgery, 6) associated ankle dislocation. After this selection, 93 patients were included in our study and assigned in two groups, based on using of different implant: in group A48 patients were treated with one-third tubular and in group B 45 patients were treated with LCP distalfibula plate. There were no significant differences in the baseline characteristics. Patients received the same surgical procedure and the same post-operative care, then they were radiologically evaluated at1-3-12 months and clinical examination was made at 24 (range 15-36) months using AOFAS clinical rating system. All data were evaluated using chi-square test. Results: At the final 24-month follow-up a comparison between the two groups showed no statistical significant differences in reduction accuracy and bone union ratio at radiological examination. The wound complications rate of the overall study group was 7.6%. There were no statistical differences in the rate of wound complications between the two groups. There were no differences between both group in percentage of hardware removal at follow-up (overall 5.4%). In the group A occurred 1 deep infection, 2 superficial infection, no wound dehiscence; in group B occured 1 deep infection, 1 superficial infection and 2 wound dehiscence. There were no statistical differences in the rate of wound complications between the two groups (p=0.70; Fisher exact test). Conclusion: Our study has shown no difference in radiographic bone union rate, no significant differences in terms of clinical outcomes, in time of bone reduction and wound complication rate between the LCP distalfibula plate and conventional one-third tubular plate. RCT or metanalasys are in this case useful to improve scientific evidence and give more information for the correct surgical treatment of ankle fractures.

A new surgical technique for the treatment of scaphotrapezial arthritis associated with trapeziometacarpal arthritis: the narrow pseudoarthrosis

2016 ◽  
Vol 41 (7) ◽  
pp. 710-718 ◽  
Author(s):  
M. Rubino ◽  
L. Cavagnaro ◽  
V. Sansone
Keyword(s):  
Simple Technique ◽  
Stage Iv ◽  
Pinch Strength ◽  
Dash Score ◽  
Level Of Evidence ◽  
First Ray ◽  
Excision Arthroplasty ◽  
Surgical Treatments ◽  
New Surgical Technique

We describe a technique for treating Eaton stage IV osteoarthritis of the first ray, which is a development of our previously published technique for treating trapeziometacarpal arthritis. This simple technique is based on a limited resection arthroplasty of the first trapeziometacarpal and the scaphotrapezial joints, with the aim of inducing the formation of a narrow pseudoarthrosis at both sites. A total of 26 consecutive patients were treated for Eaton stage IV arthritis at a mean follow-up of 4.7 years (range 3.2–6.6). There were statistically significant improvements in all clinical parameters: mean appositional and oppositional pinch strength, mean DASH score (65 points pre-operatively to 8.7 points at final follow-up), and in mean visual analogue scale score (8.6 to 0.2 points). Although a larger cohort and a longer follow-up will be necessary to evaluate this new technique fully, these results encourage us to believe that the limited excision arthroplasty of the trapeziometacarpal and scaphotrapezial joints is a viable alternative to the existing surgical treatments for stage IV thumb arthritis. Level of evidence: 4

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