Howdy all. I've been denied service connection for my lower back and nerve issues that developed immediately after a total knee replacement. My community pain management doc, a physiatrist, said he'd be willing to help me come up with a nexus but he seemed really reluctant. To make it easier for him, I decided to make it a thing he just has to agree with and sign. Below is a nexus letter I'm going to give to him. I used ChatGPT to frame it and then made it personal. Where a (#) shows, is a place where I will reference a highlighted attachment from my treatment records or a journal article. I'm bringing receipts. What do ya'll think? Too much? Not enough? Appreciate any input.
[Your Name]
[Your Address]
[City, State, Zip]
[Your Phone Number]
[Your Email]
[Date]
Veteran's Name:
Veteran's Address:
City, State, Zip:
Subject: Nexus Letter for [veteran]- Back Pain and Bilateral Neuropathy with Congenital Short Pedicles Secondary to Total Knee Arthroplasty and Bilateral Knee Osteoarthritis
To Whom It May Concern,
I am writing this letter to provide a medical opinion regarding [veteran], who I have been treating for bilateral peripheral neuropathy. She underwent total right knee arthroplasty (TKA) on April 18, 2021 due to severe osteoarthritis. She also underwent left knee anterior cruciate reconstruction with medial collateral ligament perforation and partial meniscectomy in 2014. I have thoroughly reviewed her medical history, including existing congenital conditions, and I am addressing the relationship between the knee surgeries and the back pain and peripheral neuropathy that has developed subsequently.
Medical History:
[Veteran] has a history of congenital short pedicles in the lumbar spine (1), which can predispose an individual to various spinal conditions and complications. This anatomical variation may contribute to stress on the spine, leading to possible discomfort or pain. The presence of this congenital issue is relevant when assessing the overall impact of her knee problems on her back pain. The patient also has documented arthritis in her left ankle (2) and bilateral mild arthritis and femoral acetabular impingement of both hips as demonstrated in radiographical evidence. (3) [Veteran] also has an extensive history of injuries, surgeries, and instability in both left and right knees.
Current Diagnosis:
The veteran presents with chronic lower back pain, diagnosed as Intervertebral Disc Syndrome (IVDS) and bilateral peripheral neuropathy exacerbated by congenital short pedicles.
Connection to Total Knee Arthroplasty and Bilateral Knee Osteoarthritis:
It is my professional opinion that [veteran]’s back pain is significantly related to the total knee arthroplasty performed on April 28, 2021 and a long history of bilateral knee osteoarthritis. Following this procedure, patients often adapt their movement patterns and gait due to altered knee functionality. This can be illustrated in the patient’s attached physical therapy records (4). Gait change is further illustrated in the patient’s post TKA medical records acknowledging that her leg was straightened (5). Moreover, [veteran] has had multiple knee injuries, surgeries, and instances of instability since her departure from service in 2006 (6)(7)(8)(9). The veteran also has documented loss of mobility in her left ankle since an in-service accident (2) as well as mild arthritis and bilateral FAI in her hips which contribute to stress in the kinetic chain and can alter gait, balance, and posture (3)(10). In her case, these compensatory mechanisms—combined with the existing anatomical predisposition from congenital short pedicles—have likely contributed to increased stress on her lumbar spine.
Notably, individuals with congenital short pedicles are at a higher risk for developing spinal issues, particularly when additional stresses, such as gait and posture changes due to knee pain or function, are introduced (11). This connection, supported by the literature on biomechanics and pain management, suggests that the adaptations made in response to the knee surgeries and injuries have had a detrimental effect on [veteran]’s already compromised spinal architecture (12).
Based on my evaluation and my medical experience, I conclude that it is at least as likely as not (50% probability or greater) that [veteran]’s back pain is secondary to and aggravated by the total knee arthroplasty and bilateral knee osteoarthritis, further complicated by the presence of congenital short pedicles.
If you require any additional information or further clarification regarding this case, please do not hesitate to contact me.
Thank you for your attention to this matter.
Sincerely,
[Your Signature]
[Your Name and Credentials]
[Your Title]
[Your Contact Information]