Zimmer marketed its Durom hip replacement device for use in younger patients, claiming the metal contact was more durable than a traditional hip implant. In reality, however, the implants were far more likely than most to require revision surgery after a very short time. Zimmer temporarily suspended sales of the hip implant in 2008 after a warning from renowned hip surgeon Dr. Larry Dorr, a former Zimmer consultant and the Director of the Dorr Institute for Arthritis Research and Education. According to Dr. Dorr’s own experience implanting the Zimmer Durom Cup in 165 hips:
- Ten hips required revision surgery and four more would soon need revision.
- Failure rate occurred within two years of initial hip replacement.
- The Durom cups came loose.
- They lacked adequate fixation.
- They actually migrated in one instance.
Dr. Dorr also described the painful symptoms experienced by his patients who required revision surgery:
- Severe pain and stiffness after rising from seated position causing a noticeable limp for several steps.
- Walking constantly without a smooth gait or with a limp.
- Sharp pain in the groin when moving from a bent to an upright position.
- Difficultly walking down stairs.
- Lack of endurance in walking.
- Necessity for using a cane to walk outdoors.