Pseudotumor and deep venous thrombosis due to crevice corrosion of the head–neck junction in metal-on-polyethylene total hip arthroplasty

Introduction:Material loss at the head-neck junction in total hip arthroplasty may cause adverse clinical symptoms and implant failure. The purpose of this study was to quantitatively examine the effects of head size, stem material and stem offset on material loss of the head-neck taper interface of a single trunnion design in retrieval implants of metal on polyethylene bearing surfaces.Methods:A retrieval study was performed to identify all 28-mm and 32-mm femoral heads from a single implant/taper design implanted for >2 years. This included n = 56 of the 28-mm heads and n = 23 of the 32-mm heads. The 28-mm femoral heads were matched to 32-mm femoral heads based on time in vivo and head length. A coordinate measuring machine was used to determine maximum linear corrosion depth (MLD). Differences in MLD for head diameter, stem material, and stem offset were determined.Results:There were no differences between groups for age, gender, BMI, or implantation time. There was no difference in MLD between 28 mm and 32 mm matched paired head diameters ( p = 0.59). There was also no difference in MLD between titanium or cobalt-chromium stems ( p = 0.79), and regular or high-offset stems ( p = 0.95).Conclusion:There is no statistical difference in femoral head MLD at the head-neck junction in THA between 28-mm and 32-mm matched paired femoral heads, similar or mixed alloy coupled femoral head stem constructs, and regular or high offset stems.

Download Full-text

Incidence of Posthospitalization Proximal Deep Venous Thrombosis After Total Hip Arthroplasty A Pilot Study

Clinical Orthopaedics and Related Research ◽

10.1097/00003086-199402000-00028 ◽

1994 ◽

Vol &NA; (299) ◽

pp. 203???208 ◽

Cited By ~ 1

Author(s):

ARTHUR TROWBRIDGE ◽

CLIFFORD KENT BOESE ◽

BERNADETTE WOODRUFF ◽

HANES H. BRINDLEY ◽

WALLACE E. LOWRY ◽

...

Keyword(s):

Pilot Study ◽

Total Hip Arthroplasty ◽

Venous Thrombosis ◽

Deep Venous Thrombosis ◽

Hip Arthroplasty ◽

Total Hip

Download Full-text

Late Deep Venous Thrombosis and Delayed Weightbearing After Total Hip Arthroplasty

Clinical Orthopaedics and Related Research ◽

10.1097/00003086-199904000-00017 ◽

1999 ◽

Vol 361 ◽

pp. 123-130 ◽

Cited By ~ 31

Author(s):

Knute O. Buehler ◽

Darryl D. D'Lima ◽

William J. Petersilge ◽

Clifford W. Colwell ◽

Richard H. Walker

Keyword(s):

Total Hip Arthroplasty ◽

Venous Thrombosis ◽

Deep Venous Thrombosis ◽

Hip Arthroplasty ◽

Total Hip

Download Full-text

Deep Venous Thrombosis after Mini-Posterior Total Hip Arthroplasty in Japanese Patients

Hip International ◽

10.5301/hip.2011.8825 ◽

2011 ◽

Vol 21 (6) ◽

pp. 684-687 ◽

Cited By ~ 1

Author(s):

Motomi Ishibe ◽

Satoru Kariya

Keyword(s):

Total Hip Arthroplasty ◽

Venous Thrombosis ◽

Deep Venous Thrombosis ◽

Hip Arthroplasty ◽

Japanese Patients ◽

Doppler Imaging ◽

Compression Stockings ◽

Percutaneous Injection ◽

Total Hip ◽

Surgery Group

We conducted a retrospective study of the occurrence of deep venous thrombosis (DVT) following mini-posterior total hip arthroplasty (THA) in Japanese patients. From May 2004 to December 2009 mini-posterior THA was performed on 1659 cases, of whom 603 cases didn't receive anticoagulants (Group 1), 547 cases received 2.5 mg percutaneous injection of fondaparinux (a factor Xa inhibitor) daily for 7 days starting the day after surgery (Group 2), and 509 cases received 2000IU percutaneous injection of enoxaparin (low-molecular-weight heparin) twice daily for 7 days starting the day after surgery (Group 3). The baseline characteristics were very similar in each group. All patients started walking the day after surgery, were advised to wear graduated compression stockings for six weeks after the operation, and used a foot pump for 3 hours a day postoperatively for several days. A week after surgery Duplex ultrasound with colour-flow Doppler imaging of the lower extremities was performed. The occurrence of DVT was significantly different between Groups 1, 2, and 3 (p<0.001): 57 cases (9.5%), 4 cases (0.7%), and 0 cases (0%), respectively. No patients of any group had clinically detected pulmonary emboli. In this study we showed that adding anticoagulants with foot pumps further reduced the incidence of DVT, which seldom occurs following less invasive mini-posterior THA combined with early mobilisation, foot pumps, and anticoagulants.

Download Full-text