Short-Term Efficacy of Lars Artificial Ligament Reconstruction for Spontaneous Quadriceps Tendon and Contralateral Patellar Tendon Rupture in a Chronic Hemodialysis Patient: A Case Report

Case Report

Austin Surg Case Rep. 2022; 7(2): 1051.

Short-Term Efficacy of Lars Artificial Ligament Reconstruction for Spontaneous Quadriceps Tendon and Contralateral Patellar Tendon Rupture in a Chronic Hemodialysis Patient: A Case Report

Fuyuan Deng1#, Juncai Liu2,3* and Zhong Li2,3*

¹Department of Orthopaedics, People’s Hospital of Deyang City, China

²Department of orthopedics, The Affiliated Hospital of Southwest Medical University, China

³Sichuan Provincial Laboratory of Orthopaedic Engineering, China

#These authors contributed equally to this work

*Corresponding author: Zhong Li, Department of orthopedics, The Affiliated Hospital of Southwest Medical University, China

Juncai Liu, Sichuan Provincial Laboratory of Orthopaedic Engineering, China

Received: July 18, 2022; Accepted: August 17, 2022; Published: August 24, 2022

Abstract

Background: Spontaneous rupture of the quadriceps and patellar tendons is a very rare injury that usually occurs in middle-aged to elderly patients. It’s often associated with chronic metabolic disorders, such as diabetes, hyperparathyroidism, gout, chronic renal failure, or long-term steroid use.

Case Presentation: This article describes a 43-year-old man who has been on hemodialysis for 8 years due to uremia. The patient occurred pain without an obvious cause in both knees, difficulty in walking and limited extension of both knees for more than 4 months, and aggravation for more than 1 month. Conservative treatment for him was not valid. The rupture of the quadriceps tendon and the patellar tendon was confirmed according to the patient’s clinical symptoms and Magnetic Resonance Imaging (MRI). We used Ligament Advanced Reinforcement System (LARS) artificial ligament to reconstruct the patellar tendon and quadriceps tendon. The tendon and knee joint function recovered well after surgery. No infection or tendon rupture was found during follow-up.

Conclusion: We report a case of the femoral quadriceps tendon and contralateral patellar tendon rupture during long-term hemodialysis. After the failure of conservative treatment, LARS artificial ligaments were used to reconstruct the ruptured tendon, and good results were obtained.

Keywords: Chronic renal failure; Hemodialysis; Tendon rupture; Artificial ligament

Abbreviations

MRI: Magnetic Resonance Imaging; LARS: Ligament Advanced Reinforcement System; WBC: White Blood Cell; HGB: Hemoglobin; Crea: Creatinine; UA: Uric Acid; Ca: Calcium; P: Phosphorus; ALP: Alkaline Phosphatase

Background

Spontaneous rupture of the quadriceps or patellar tendon is very rare in clinical practice, and there are only a few cases reported abroad. Such diseases are considered secondary to systemic diseases such as chronic renal failure [1,2,6,10,15], diabetes [8], hyperparathyroidism [5], osteogenesis imperfecta [4], Etc. It is easy to miss or misdiagnose clinically. There is related literature that the early misdiagnosis rate can reach more than 50% during the reporting period [5], often the best treatment time is missed, which affects the recovery of knee function after surgery. Some scholars believe that early surgical treatment leads to better prognosis [12], and delayed repair may lead to poor functional recovery in the later period [3]. In this article, a patient with long-term hemodialysis of uremia complicated with rupture of the right knee quadriceps tendon and contralateral patellar tendon rupture. Due to unclear early diagnosis, it developed a chronic injury. We used LARS artificial ligament to reconstruct the patellar tendon and the four femoral heads. The tendon and knee joint function recovered well after surgery. The report is as follows.

Case Presentation

A 43-year-old male patient was admitted to the hospital with “restriction of knee joint straightening for more than 4 months and aggravation for more than 1 month. Four months ago, the patient presented pain and difficulty in walking with no obvious cause in both knees and received analgesic medication with poor effect. Therefore, he went to a local hospital and was recommended to our hospital for treatment. In our hospital, he was admitted with right knee quadriceps tendon rupture and left knee patellar tendon rupture. Parathyroidectomy was performed more than 4 months ago for “secondary hyperparathyroidism”, and no history of trauma was denied. The patient has a history of uremia for more than 8 years and he is undergoing regular hemodialysis treatment in the hospital 3 to 4 times a week. Physical examination after admission: no obvious swelling of the knee joints, no varicose veins in the lower extremities, no surgical scars, depressions can be touched below the patella of the left knee and above the patella of the right knee, no obvious tenderness in the right knee, and the knees cannot be actively extended Straight, both knees active and passive flexion functional activity is acceptable, both legs are equal in length. A lateral radiograph of the right knee joint and MRI showed a quadriceps rupture (Figure 1A-B), and a lateral radiograph of the left knee joint and MRI showed a patellar tendon rupture (Figure 1CD). Laboratory tests: White Blood Cell (WBC) count 6.54×109/L, Hemoglobin(HGB) 120g/L, Urea 25.83mmol/L, Creatinine(Crea) 120.1μmol/L, Uricacid(UA) 506.6μmol/L, Calcium(Ca) 2.36mmol/L, Phosphorus(P) was 2.77mmol/L, and Alkaline Phosphatase(ALP) was 91.6U/L. Hemodialysis was performed 1 day before the operation, and antibiotics were used prophylactically for 30 minutes before the operation. On the second day, after the patient’s creatinine, ions and other indicators reached the surgical requirements, the LARS artificial ligament was used to reconstruct the patellar tendon and quadriceps tendon under general anesthesia.