A man in his 30s came to our clinic with a year-long history of progressive pain and swelling in his knee. Diagnostic imaging revealed a displaced patellar fracture with an osteolytic, septated lesion and thinned expanded cortex in both fracture fragments. A core needle biopsy confirmed the diagnosis of giant cell tumour. Treatment involved wide excision of the tumour and the use of polypropylene mesh and a peroneal longus tendon autograft to reconstruct the extensor mechanism of the knee joint. One year postoperatively, the patient experienced no pain, demonstrated full range of motion and showed no signs of functional impairment or local tumour recurrence. This case highlights that reconstruction of the extensor mechanism of the knee after tumour excision with synthetic mesh is an affordable, user-friendly and widely accessible method. It can address large defects effectively while minimising the risks of disease transmission and graft lengthening, resulting in satisfactory outcomes.
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http://dx.doi.org/10.1136/bcr-2024-260141 | DOI Listing |
JBJS Case Connect
October 2024
Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN.
Case: A 67-year-old woman sustained a periprosthetic tibial tubercle avulsion fracture with extensor mechanism disruption. She underwent open reduction internal fixation (ORIF) with orthogonal mini-fragment plates applied in a tension band fashion with patellar tendon suture augmentation. Radiographs, range of motion, and patient-reported outcomes were completed over 1 year.
View Article and Find Full Text PDFTop Companion Anim Med
December 2024
OrtopediaVet Veterinary Clinic, Dr. Eloy Curuci and team. Volta Redonda Street, 670 - Campo Belo, São Paulo, State of São Paulo, Brazil, Zip code 04608-011.
Objectives: There is a lack of literature regarding the surgical management of high-grade patellar luxation in cats. Among the available options, corrective osteotomies are suitable for correcting severe bone deformities. Therefore, this study aimed to report on the surgical management of grade IV medial patellar luxation (MPL) through tibial corrective osteotomies in two cats.
View Article and Find Full Text PDFBackground: Most olecranon fractures are intra-articular, affecting the extensor mechanism of the elbow, and are treated surgically with dorsal plate fixation or tension band. Due to shortcomings of dorsal plates related to prominence, insufficient fixation of sagittal fracture lines, and difficulty matching proximal ulna dorsal angulation (PUDA), dual medial and lateral plating (DP) has been developed. We hypothesized that olecranon fractures treated with DP would have low complication rates and low incidence of hardware removal compared with those treated with traditional methods of fixation.
View Article and Find Full Text PDFFront Neurosci
December 2024
Department of Physical Therapy, Human Health Sciences, Graduate School of Medicine, Kyoto University, Kyoto, Japan.
Background: Understanding the muscle synergies shared between pedaling and walking is crucial for elucidating the mechanisms of human motor control and establishing highly individualized rehabilitation strategies. This study investigated how pedaling direction and speed influence the recruitment of walking-like muscle synergies.
Methods: Twelve healthy male participants pedaled at three speeds (60 RPM, 30 RPM, and 80 RPM) in two rotational directions (forward and backward).
Cureus
November 2024
Department of Orthopedics, Krishna Vishwa Vidyapeeth (Deemed to be University), Satara, IND.
Patellar fractures can lead to extensor mechanism dysfunction if not repaired properly, impacting knee function and mobility, and this complication can be challenging to manage, especially in cases where previous surgical interventions have failed. The aim of this study was to evaluate the functional outcome of the salvaged extensor mechanism in patella fracture non-union using Krakow sutures in a 61-year-old female patient who presented with knee pain, reduced flexion, and a 40-degree extension lag after two previous patellar fracture surgeries using tension band wiring resulted in non-union. Despite rehabilitation attempts, her knee function remained compromised.
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