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17. Patient-matched osseointegrated prostheses for thumb amputees: a cadaver and feasibility study.

Author

Bregoli, Chiara, Lando, Mario, Adani, Roberto, Sette, Priscilla Di, Rampoldi, Michele, Morellato, Kavin, Gruppioni, Emanuele, and Tuissi, Ausonio

Subjects
PROSTHETICS, THUMB, COMPUTED tomography, MEDICAL cadavers, IMAGE reconstruction, OSSEOINTEGRATED dental implants, LEG amputation
Abstract

Thumb amputations affect 50% of hand functionality. Common solutions consist of microsurgical treatments or silicone vacuum prosthesis. Not all patients are eligible for microsurgical treatment and the use of vacuum prosthesis is often discouraged because of their instability. On the contrary, osseointegrated prosthesis provide stable retention and osseoperception. This cadaveric study evaluated the process of a patient-matched osseointegrated prosthesis for the treatment of thumb amputees. Computed tomography (CT) medical images reconstruction provided information on metacarpal stump, used as input for the parametric screw design. Preoperative planning guided the surgeons in the surgery: postoperative placement confirmed the accuracy of the preoperative planning. Surgeons were directly involved in the implant design to meet their requirements and patient needs. Implants were inserted into cadaveric specimens in one-stage surgery. A similar process can be adopted and exploited for the treatment of different levels of thumb amputations and long finger amputations. [ABSTRACT FROM AUTHOR]

Published
2024
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27. Dorsal scapholunate interosseous ligament: ultrasound evaluation between dominant and non-dominant wrist in young sports patients

Author

Vita Fabio, Donati Danilo, Faldini Cesare, Galletti Stefano, Adani Roberto, and Della Rosa Norman

Subjects
Adult, Male, Scaphoid Bone, Young Adult, Ligaments, Articular, Internal Medicine, Humans, Female, Radiology, Nuclear Medicine and imaging, Lunate Bone, General Medicine, Wrist, Sports
Abstract

The dorsal component of the scapholunate ligament, is the strongest component, in fact it has a maximum tensile strength of 300 N and mainly controls flexion and extension. In a recent study, the thickness and length of the dorsal component of SLIL was measured using ultrasound image, the length of the dorsal scapholunate ligament was 7.5 mm ± 1.4 mm and the thickness of 1.8 mm ± 0.4 mm. We evaluate 60 wrists of 30 young athletic volunteers with ultra-sound image, comparing the thickness variations of the dorsal component of SLIL between the dominant and non-dominant wrist, to confirm our hypothesis that the dorsal component SLIL has proprioceptive activity and therefore the thickness of the ligament increases in following wrist activity.With a high-frequency ultrasound probe 15 MHz (Sonoscape X3 Pro) we evaluated 60 wrists of 30 young men (16 males and 14 females, 20-38 years old) manual sports volunteers (10 tennis players, 8 padel players, 7 swimmers, 5 weight lifters) with no recent ligament injuries of the hand or wrist to participate in the study, we compared the dorsal component of SLIL between the dominant and non-dominant wrist.Dorsal SLIL was visualized in all 60 volunteers wrists. We measured an average scapholunate dorsal ligament length 7.7 mm and average thickness of 2.3 mm in the dominant wrist and average 7.2 mm in length and average 1.9 mm thickness in the non dominant wrist. The mean dorsal scapholunate interval was average 4.9 mm and the mean central interval was average 2.1 mm in the dominant wrist and 4.7 mm and 1.8 mm in the non dominant wrist, so that meas-urements remained unchanged with those reported by previous authors.In our study we ultrasonographically measured an average scapholunate dorsal ligament length 7.7 mm and average thickness of 2.3 mm in the dominant wrist and average 7.2 mm in length and average 1.9 mm thickness in the non dominant wrist. This confirms our hypothesis that there is a direct stimulus on the ligamentous component of the dor-sal SLIL in the dominant wrist following repeated uses and activities such as to cause an increase in thickness of the dorsal ligament to highlight the possibility of a proprioceptivity of the ligament if subjected to continuous training.IV.

Published
2022
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37. Osteoid Osteoma of the Hand: Surgical Treatment versus CT-Guided Percutaneous Radiofrequency Thermal Ablation.

Author

Vita, Fabio, Tuzzato, Gianmarco, Pederiva, Davide, Bianchi, Giuseppe, Marcuzzi, Augusto, Adani, Roberto, Spinnato, Paolo, Miceli, Marco, Donati, Danilo, Manzetti, Marco, Pilla, Federico, and Faldini, Cesare

Subjects
CATHETER ablation, CARPAL bones, ANALGESIA, SURGICAL excision, VISUAL analog scale
Abstract

(1) Background: Osteoid osteoma (OO) is one of the most common benign bone tumors. This type of osteogenic tumor is generally characterized by a well-defined lytic area with a vascularized central nidus surrounded by sclerosis and bone thickening. The wrist and hand bones are infrequent sites for osteoid osteoma: only 10% of the cases arise in these areas. Standard treatments are surgical excision and radio-frequency ablation (RFA), both with advantages and disadvantages. This study aimed to compare the two techniques to prove if RFA could be a potential alternative to surgery in the treatment of OO of the hand. (2) Methods: Patients treated for OO of the hand between January 2011 and December 2020 were evaluated and data was collected regarding the lesions' characteristics and the treatment outcome. Each patient was followed up for 24 months and VAS pain (Visual Analogue Scale), DASH (Disability of the Arm, Shoulder and Hand), and PRWE (Patient-Related Wrist Evaluation) scores were collected. (3) Results: A total of 27 patients were included in the study: 19 surgical and 8 RFA. Both treatments showed a significant improvement in pain and functionality. Surgery was associated with a higher complication rate (stiffness and pain), while RFA was associated with a higher recurrence rate (2/8 patients). RFA allowed for a speedier return to work. (4) Conclusions: We believe that osteoid osteoma treatment with RFA in the hand should be an available alternative to surgery as it allows rapid pain relief and a swift return to work. Surgery should be reserved for cases of diagnostic uncertainty or periosteal localization. [ABSTRACT FROM AUTHOR]

Published
2023
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