Trauma-related postoperative redisplacement after tension-band fixation for patellar fracture in Parkinson's disease: a case report and focused literature review
Abstract
Rationale: Patellar fractures in patients with Parkinson's disease (PD) are rarely reported, and evidence regarding optimal fixation and postoperative management remains limited. In this population, recurrent falls, abnormal muscle tone, and impaired bone quality may increase the risk of treatment failure.
Patient concerns: A 78-year-old man with long-standing PD presented with a patellar fracture after a low-energy fall and subsequently developed trauma-related postoperative redisplacement after a recurrent fall following primary tension-band fixation.
Diagnoses: The patient was diagnosed with a displaced left patellar fracture (AO/OTA 34-C3) complicated by secondary traumatic redisplacement after a postoperative fall.
Interventions: The patient initially underwent tension-band fixation using two patellar pins, supplemented by suture-based soft-tissue reinforcement. After postoperative traumatic redisplacement, revision surgery with augmented fixation and additional suture-based soft-tissue reinforcement was performed.
Outcomes: Radiographic follow-up demonstrated partial fracture union with residual nonunion and fragment avulsion. After revision surgery, knee range of motion (ROM) was 0°-20° at postoperative days 1-3, and at 1 month the visual analogue scale pain score was 1, with Lysholm and Bostman scores of 22 and 5, respectively. At 9 months, ROM was 0° to 30°, with full extension to 0°. Although CT showed partial union with residual nonunion and fragment avulsion, the…
How strong is the evidence?
Evidence Hub reads this as a case report, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.
Read the paper
Related studies
- Effectiveness of Bisphosphonates and Denosumab on Risk of Vertebral Fractures in Prostate Cancer Patients Under Androgen Deprivation Therapies: A Real-World Prospective Study
- Osteoporosis-related fractures after spinal cord injury: a retrospective study from Brazil
- Serum 25-hydroxyvitamin D, parathyroid hormone, and mortality in older men
- Lack of Association between Vitamin D Insufficiency and Cardiovascular or Fracture Risk: A UK Biobank Study
- Muscle strength and body composition are clinical indicators of osteoporosis
- Incidence of bone protection and associated fragility injuries in patients with proximal femur fractures
Go deeper in Evidence Hub
Evidence Hub adds a study data sheet (design, sample size, evidence level, key numbers), an AI summary and a chat grounded in the paper's text.