Functional and Radiological Results of Intermediate-term Follow Up in MUTARS® Tumor Endoprostheses

Introduction:Cephalomedullary nails are preferred over intramedullary nails for internal fixation of unstable intertrochanteric fractures; however, they are associated with complications as they do not match the anatomy of the proximal femur to a great extent. Aim: To investigate functional and radiological results of Zimmer natural nails in the management of unstable intertrochanteric fractures. Materials and Methods: A longitudinal prospective study of 99 patients with unstable intertrochanteric fractures was carried out. All patients underwent closed reduction and internal fixation with 180 mm short Zimmer natural nails. Follow-up visits were scheduled for six weeks, three months, and six months for radiological healing and mobility measurements using RUSH and Parker scores, respectively. Statistical analysis was performed using Chi-square and ANOVA. Results: Mean age of patients was 69.77±11.47 years with a male to female ratio of 1:1. A majority of patients had co-morbidities like diabetes mellitus and hypertension. Average duration of surgery was 58.38 minutes with no statistically significant difference among the different categories of unstable intertrochanteric fractures. Fixation of fractures with Zimmer natural nails increased Parker score and RUSH score consistently with each follow-up visit (p<0.05). There were no postoperative complications in 93.94% cases. Conclusion: This study emphasised good functional and radiological results of Zimmer natural nails in the treatment of unstable intertrochanteric fractures.

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Mid-term implant survival, functional and radiological results and mechanical complications of mega-prosthetic reconstruction around the knee with the PENTA® system

Archives of Orthopaedic and Trauma Surgery ◽

10.1007/s00402-021-04108-3 ◽

2021 ◽

Author(s):

Harzem Özger ◽

Bugra Alpan ◽

Ahmet Salduz ◽

Volkan Gurkan ◽

Mustafa Sungur ◽

...

Keyword(s):

Survival Rate ◽

Tumor Resection ◽

Mechanical Complication ◽

Implant Survival ◽

Improvement Rate ◽

Prosthetic Reconstruction ◽

Radiological Results ◽

The Mean ◽

Functional And Radiological Results

Abstract Aim Mega-prosthetic reconstruction is the most common treatment method for massive osteoarticular defects caused by tumor resection around the knee. The new implant is a highly modular rotational-hinged megaprosthesis system with a distinct pentagonal stem geometry and variable implantation options. The aim of this study is to present the mid-term implant survival characteristics, functional and radiological results and mechanical complication profile of the new megaprosthesis. Methods One hundred and one mega-prosthetic knee reconstruction procedures in 90 patients (M/F: 51/39) utilizing the new implant system were retrospectively analyzed. In 68 patients, the megaprosthesis was used for primary reconstruction following tumor resection while it was used for revision of other implants in 22. The mean age was 28.5 (7–66) years and the mean follow-up was 59.2 (24–124) months. The most common primary pathology was osteosarcoma with 63–70% patients, the most common anatomical site of involvement was the distal femur with 56–62% patients. Results Henderson Type 2 failure (aseptic loosening) was seen in only 2–2.2% patients while Type 3 (structural failure) was seen in 29–32.2% Although the 5-year anchorage survival rate was 94.3%, overall mechanical implant survival was 76.1% at 5 years due to a relatively high failure rate in the first-generation hinge mechanism of the implant. The 5-year hinge survival rate demonstrated a significant improvement rate from 61.7% to 87.2% between the first and second generations of the implant (p = 0.027). The mean MSTS score was 24 out of 30 (14–29). The mean cumulative ISOLS radiographic score for index megaprosthesis operations was 19.7 (12–24), which corresponded to excellent outcome. Conclusion The new megaprosthesis system is a reliable choice for the reconstruction of tumor-related massive osteoarticular defects around the knee. Although long-term follow-up is necessary for a definitive evaluation of the implant's survival characteristics, midterm follow-up yields exceptional anchorage properties related to pentagonal stem geometry with very good functional outcomes.

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Functional and radiological results of the Crimson Duvet procedure in rotator cuff treatment. A Randomize Controlled Clinical Trial

Journal of Shoulder and Elbow Surgery ◽

10.1016/j.jse.2021.12.004 ◽

2022 ◽

Author(s):

Felipe Toro ◽

Fernando Pinochet ◽

Francisco Ruiz ◽

Claudio Moraga ◽

Rene Pozo ◽

...

Keyword(s):

Clinical Trial ◽

Rotator Cuff ◽

Controlled Clinical Trial ◽

Radiological Results ◽

Functional And Radiological Results

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Clinical and Radiological Results over the Medium Term of Isolated Acetabular Revision

The Scientific World JOURNAL ◽

10.1155/2014/148592 ◽

2014 ◽

Vol 2014 ◽

pp. 1-7 ◽

Cited By ~ 4

Author(s):

Nicola Piolanti ◽

Lorenzo Andreani ◽

Paolo Domenico Parchi ◽

Enrico Bonicoli ◽

Francesco Niccolai ◽

...

Keyword(s):

Groin Pain ◽

Large Diameter ◽

Acetabular Revision ◽

Acetabular Cup ◽

Medium Term ◽

Retrospective Design ◽

Radiological Results ◽

Functional Scores ◽

Clinical And Radiological Results

Acetabular cup loosening is associated with pain, reduced function, and instability of the implant. If such event happens while the femoral implant is in a satisfactory position and is well fixed to the bone, isolated acetabular revision surgery is indicated. The aim of this single-center retrospective study was to evaluate the clinical and radiological results over the medium term (12-month follow-up mean 36, max 60) of isolated acetabular revisions surgery using a porous hemispheric revision shell matched with a cemented all-poly cup and large diameter femoral head (>32). 33 patients were enrolled. We collect any relevant data from the clinical board. Routine clinical and radiographic examinations were performed preoperatively; the postoperative follow-up was made at 1, 3, and 6 months and yearly thereafter. At the last available follow-up, we report satisfactory improvement of functional scores in all the patients; 2 patients (6.1%) showed thigh pain and only 4 hips (12.11%) presented mild groin pain; all the femoral components are well fixed and there were no potential or pending rerevisions. With bias due to the follow-up and to the retrospective design of the study, we report clinical, functional, and radiological satisfactory results.

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