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Clinical Trial Details — Status: Terminated

Administrative data

NCT number NCT00671333
Other study ID # 2006-060
Secondary ID
Status Terminated
Phase N/A
First received
Last updated
Start date April 2008
Est. completion date November 14, 2017

Study information

Verified date April 2018
Source Simon Fraser Orthopaedic Fund
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The purpose of this study is to compare the effectiveness of two types of operative treatment in terms of resolving symptoms, improving function and also with respect to x-ray outcomes.

The hypothesis is that insertion of a spacer will provide similar symptomatic relief, but improved long term gains in key and tripod pinch strength when compared to LRTI.


Description:

Trapeziometacarpal (TMC) arthritis is a common condition, which occurs when the cartilage (tissue) covering the bones at the joint at the base of the thumb wear away. This condition occurs in 10% of women and 1% of men.

There is controversy regarding the best treatment of this condition and many surgical techniques are in common use.

One of these involves removing the wrist bone (trapezium) at the base of the thumb and, using a tendon from the forearm, reconstructing an important ligament, which contributes to the stability of the thumb. This is known as a Ligament Reconstruction and Tendon Interposition (LRTI).

A newer type of operation involves the insertion of a Ascension PyroDisk which is made from a thick pyrocarbon layer encasing a graphite core with a small amount of tungsten. These materials have been shown to be safe when implanted in the body. The PyroDisk is a disk shaped design which has a curved surface designed to fit between the bony surfaces of the trapezium and the metacarpal, reducing pain and allowing for full movement of the joint. It contains a hole in the center through which a strip of tendon can be passed and helps hold the disk in place.

This research study is designed to determine the effectiveness of the Ascension PyroDisk spacer when compared to the LRTI procedure described above. The effectiveness of both of these procedures will be determined by comparing range of motion, grip and pinch strength, x-rays, function and return to work. It is important to compare both procedures, as it is not known which procedure is the most effective.


Recruitment information / eligibility

Status Terminated
Enrollment 82
Est. completion date November 14, 2017
Est. primary completion date November 14, 2017
Accepts healthy volunteers No
Gender All
Age group 50 Years and older
Eligibility Inclusion Criteria:

- isolated trapeziometacarpal osteoarthritis

- duration of symptoms of at least six months

- failure to respond to non-operative management

- age 50 or older

- less than 30 degrees of ipsilateral MCP hyperextension

- British Columbian resident living in the Lower Mainland and available for protocol follow-up

Exclusion Criteria:

- previous surgery for TMC arthritis

- other significant ipsilateral wrist or hand pathology

- a history of inflammatory arthropathy

- a requirement for concommitant surgery for another condition

- any previous hand or wrist fracture

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
LRTI
Dorsal radial incision, capsulotomy between EPB and APL protecting the radial artery, trapeziectomy using a cruciate osteotomy and rongeurs, creation of a metacarpal base bone tunnel using a high speed burr, harvesting of entire FCR tendon through two transverse volar incisions, ligament reconstruction and tendon interposition using "Fibre Wire" suture. Closure of capsule with Vicryl. Closure of skin with running Prolene suture.
Ascension PyroDisk
Dorsal radial incision, capsulotomy between EPB and APL protecting the radial artery, distal 2 mm of trapezium and dorsal cortex of both trapezium and metacarpal removed using osteotomes/rongeurs. A hole is drilled through the trapezium from dorsal to resected distal surface, and a second hole is drilled through the first metacarpal from the resected base to the dorsal surface. A slip of FCR is harvested. The tendon is woven through the trapezium, the central hole in the device, and the metacarpal tunnel then sutured back onto itself. Closure of capsule with Vicryl. Closure of skin with running Prolene suture.

Locations

Country Name City State
Canada Royal Columbian Hospital New Westminster British Columbia
Canada Eagle Ridge Hospital Port Moody British Columbia

Sponsors (1)

Lead Sponsor Collaborator
Simon Fraser Orthopaedic Fund

Country where clinical trial is conducted

Canada, 

References & Publications (13)

Armstrong AL, Hunter JB, Davis TR. The prevalence of degenerative arthritis of the base of the thumb in post-menopausal women. J Hand Surg Br. 1994 Jun;19(3):340-1. — View Citation

Beckenbaugh RD. [Arthroplasty of the metacarpophalangeal joint using pyrocarbonate implants]. Orthopade. 2003 Sep;32(9):794-7. Review. German. — View Citation

Burton RI, Pellegrini VD Jr. Surgical management of basal joint arthritis of the thumb. Part II. Ligament reconstruction with tendon interposition arthroplasty. J Hand Surg Am. 1986 May;11(3):324-32. — View Citation

Carroll RE, Hill NA. Arthrodesis of the carpo-metacarpal joint of the thumb. J Bone Joint Surg Br. 1973 May;55(2):292-4. — View Citation

Cooney WP, Linscheid RL, Askew LJ. Total arthroplasty of the thumb trapeziometacarpal joint. Clin Orthop Relat Res. 1987 Jul;(220):35-45. — View Citation

Eaton RG, Littler JW. Ligament reconstruction for the painful thumb carpometacarpal joint. J Bone Joint Surg Am. 1973 Dec;55(8):1655-66. — View Citation

GERVIS WH. Excision of the trapezium for osteoarthritis of the trapezio-metacarpal joint. J Bone Joint Surg Br. 1949 Nov;31B(4):537-9, illust. — View Citation

Heers G, Grifka J, Borisch N. [First results after implantation of a pyrocarbon-endoprosthesis in patients with degenerative arthritis]. Z Orthop Ihre Grenzgeb. 2006 Nov-Dec;144(6):609-13. German. — View Citation

Low AK, Edmunds IA. Isolated scaphotrapeziotrapezoid osteoarthritis: preliminary results of treatment using a pyrocarbon implant. Hand Surg. 2007;12(2):73-7. — View Citation

Nuñez VA, Citron ND. Short-term results of the Ascension pyrolytic carbon metacarpophalangeal joint replacement arthroplasty for osteoarthritis. Chir Main. 2005 Jun-Aug;24(3-4):161-4. — View Citation

Swanson AB. Disabling arthritis at the base of the thumb: treatment by resection of the trapezium and flexible (silicone) implant arthroplasty. J Bone Joint Surg Am. 1972 Apr;54(3):456-71. — View Citation

Tomaino MM, Pellegrini VD Jr, Burton RI. Arthroplasty of the basal joint of the thumb. Long-term follow-up after ligament reconstruction with tendon interposition. J Bone Joint Surg Am. 1995 Mar;77(3):346-55. — View Citation

Wilson JN, Bossley CJ. Osteotomy in the treatment of osteoarthritis of the first carpometacarpal joint. J Bone Joint Surg Br. 1983 Mar;65(2):179-81. — View Citation

* Note: There are 13 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Patient Rated Wrist Evaluation (PRWE) at baseline, 6 weeks, 3, 6 and 12 months post-operatively. Subjects are followed for 12 months post-op.
Secondary Wrist range of motion, grip strength, radiographs, and pain Visual Analog Scale. Baseline, 6 weeks, 3,6 and 12 months.
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