What does E A Venn-Watson research?

E A Venn-Watson studies the long-term performance of hip replacement implants, particularly looking at how different designs of artificial components influence the wear and durability of these devices. One key area of their research involves examining the effects of a modular femoral head design with a reinforced neck. This reinforcement is intended to improve stability, but their findings reveal it can lead to increased wear of the plastic lining in hip implants, which can impact the overall success and longevity of the procedure.

Key findings

  • Hips with a reinforced neck extension wore down the plastic lining 50% faster than those without it, with a wear rate of 0.17 mm per year compared to 0.11 mm per year.
  • The design flaw contributed more to wear than factors like patient age, weight, or gender.
  • Surgeons should carefully consider the implications of using a modular femoral head with a reinforced neck when selecting hip implant components.

Frequently asked questions

Does Dr. Venn-Watson study hip replacements?
Yes, Dr. Venn-Watson focuses on the performance and design of hip replacement implants.
What issues does Dr. Venn-Watson find with certain hip implant designs?
They found that certain designs, especially those with a reinforced neck, can cause faster wear of the implant's plastic lining.
How does the design of hip implants affect patients?
The design can significantly influence how long the implant lasts; it's important for surgeons to consider these factors for better patient outcomes.

Publications in plain English

Radial artery pseudoaneurysm complication from use of AO/ASIF volar distal radius plate: a case report.

2001

The Journal of hand surgery

Dao KD, Venn-Watson E, Shin AY

Plain English
This paper reports a rare problem that occurred in a patient after surgery to fix a wrist fracture using a specific type of plate. The patient developed a pseudoaneurysm, which is a bulging in the artery caused by insufficient stabilization during the procedure. The authors highlight the importance of properly preparing the surgical plate to avoid this serious complication. Who this helps: This information benefits doctors performing wrist surgeries.

PubMed

The Harris-Galante Porous acetabular component at intermediate follow-up.

2001

Orthopedics

D'Lima DD, Yashar AA, Venn-Watson EJ, Colwell CW, Walker RH

Plain English
In this study, researchers looked at the performance of a specific type of hip implant, called the Harris-Galante Porous acetabular component, in 90 patients who underwent total hip replacement surgery. After an average of 6 years, most patients saw significant improvement in their hip function, with scores jumping from 57 to 96 (72% rated their results as excellent). The findings show the implant worked well overall, though a small number of hips showed signs of wear related to osteolysis, which could impact the longevity of the implant. Who this helps: This helps patients who need hip replacements by providing evidence that this particular implant is effective over the medium term.

PubMed

Indomethacin versus radiation therapy for heterotopic ossification after hip arthroplasty.

2001

Orthopedics

D'Lima DD, Venn-Watson EJ, Tripuraneni P, Colwell CW

Plain English
This study looked at two treatments—radiation therapy and a medication called indomethacin—to prevent unwanted bone growth after hip replacement surgery. It involved 77 patients and found that both treatments worked equally well, with no significant differences in outcomes over two years. However, radiation therapy costs about $1400, while indomethacin only costs around $100, making indomethacin a much cheaper option. Who this helps: This benefits patients who undergo hip replacement surgery, as it offers a cost-effective and effective treatment option.

PubMed

The press-fit condylar total knee system: 8- to 10-year results with a posterior cruciate-retaining design.

2000

The Journal of arthroplasty

Buehler KO, Venn-Watson E, D'Lima DD, Colwell CW

Plain English
This study looked at the outcomes of a specific knee replacement surgery in 94 patients over 8 to 10 years. The researchers found that the average knee function score was high at 96 points, and the overall success rate of the knee replacements was 93.4%. This is important because it shows that this type of knee surgery can provide lasting relief and good function for patients over a significant period. Who this helps: This benefits patients suffering from knee arthritis and seeking effective long-term pain relief.

PubMed

Polyethylene wear after total hip arthroplasty: the effect of a modular femoral head with an extended flange-reinforced neck.

1998

The Journal of bone and joint surgery. American volume

Urquhart AG, D'Lima DD, Venn-Watson E, Colwell CW, Walker RH

Plain English
Researchers studied 62 patients with hip replacement implants over about 6 years to see if a particular type of artificial hip component design (one with a reinforced neck extension) caused faster wear of the plastic cup lining. They found that hips with this reinforced neck extension wore down the plastic lining 50% faster than those without it (0.17 mm per year versus 0.11 mm per year), and this design flaw was a bigger factor in wear than patient age, weight, or gender. The reinforced neck extension caused the artificial ball to rub against the edge of the plastic cup more aggressively, which is why it wore out faster—a problem that surgeons should consider when choosing which hip implant components to use.

PubMed

Continuous passive motion with accelerated flexion after total knee arthroplasty.

1997

Clinical orthopaedics and related research

Yashar AA, Venn-Watson E, Welsh T, Colwell CW, Lotke P

Plain English
This study looked at the effects of starting continuous passive motion (CPM) exercises earlier and at a higher flexion angle after total knee surgery. Patients who began CPM at a flexion of 70 to 100 degrees showed better knee bending by day three (82.5 degrees vs. 72.8 degrees) and at discharge (89.1 degrees vs. 84.3 degrees) compared to those who started at a lower angle. While this early approach led to quicker recovery in the hospital, it did not result in long-term differences at follow-up after four weeks, meaning patients ultimately ended up with similar knee flexibility. Who this helps: This benefits patients recovering from knee surgery by potentially allowing them to leave the hospital sooner while still ensuring safety.

PubMed

Tarsal navicular stress fractures in runners.

1981

AJR. American journal of roentgenology

Goergen TG, Venn-Watson EA, Rossman DJ, Resnick D, Gerber KH

Plain English
This study looked at stress fractures in the tarsal navicular bone, which is important for runners, especially those who run long distances. Researchers found that these injuries are becoming more common as more people take up running, and they highlighted how useful special bone scans can be in diagnosing these fractures. Understanding this helps improve treatment options, which is important for keeping runners healthy and active. Who this helps: This information benefits runners and healthcare providers treating them.

PubMed

Problems in polydactyly of the foot.

1976

The Orthopedic clinics of North America

Venn-Watson EA

Plain English
This research focused on polydactyly, a condition where a person has extra toes. The study found that early surgical treatment is important, especially for removing extra bone and tissue—specifically, one side of a "Y" shaped bone in the foot should be removed. They also noted that if a bone is reshaped, it may initially appear bent but can become normal over time. Proper care after surgery is vital to prevent future problems like bunions. Who this helps: This helps patients with polydactyly and their families by improving treatment outcomes.

PubMed

Stabilization, partial purification, and effects of activating cations, ADP, and phosphoenolpyruvate on the reaction rates of an erythrocyte pyruvate kinase.

1968

Archives of biochemistry and biophysics

Ibsen KH, Schiller KW, Venn-Watson EA

PubMed

Publication data sourced from PubMed . Plain-English summaries generated by AI. Not medical advice.