Methods to reconstruct bone and joint surfaces in foot or ankle joint
AssigneeSubchondral Solutions, Inc.
InventorsDerek Dee, Chris Maurer
Life of this patent
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Abstract
Bone and joint surface reconstruction methods are disclosed for the therapeutic amelioration of joint defects caused 2024/064830 by various conditions, injuries, and diseases to help eliminate or reduce pain and return the joint to its proper bio-mechanical function without the need to replace fully or partially the anatomical joint. The joint may specifically include mammalian joints such as the metatarsal phalangeal joint or other joint of the foot or ankle, for example. The methods disclosed herein leverage the significant role the subchondral bone plays in the health status of the afflicted joint. WO
Claims20
A surgical assembly configured for use in a surgery to be performed relative to a metatarsal phalangeal joint or other joint of the foot or ankle for intervening in subchondral bone therein to ameliorate one or more defects, the surgical assembly comprising:
- a driver instrument;
- and
- a hybrid subchondral implant-biologic member construct configured to be installed relative to the metatarsal phalangeal joint or other joint of the foot or ankle and comprising:
- a biologic member having a slit formed therethrough, wherein the slit is arranged so that the driver is extending through the slit, wherein the biologic member is tailored to provide therapeutic effect in the metatarsal phalangeal joint or other joint of the foot or ankle;
- and
- a subchondral implant engaged with the driver, wherein the subchondral implant is sized and shaped to be received into the subchondral bone of the metatarsal phalangeal joint or other joint of the foot or ankle, wherein the biologic member is secured to the subchondral implant so that the hybrid subchondral implant-biologic member construct is formed on the driver to facilitate installation into the metatarsal phalangeal joint or other joint of the foot or ankle by operation of the driver.
A method of intervening in subchondral bone to ameliorate one or more defects while preserving a metatarsal phalangeal joint or other joint of the foot or ankle using a hybrid subchondral implant-biologic member construct, the method comprising:
- a) surgically opening access to a metatarsal phalangeal joint or other joint of the foot or ankle joint of the patient;
- b) preparing a site of subchondral bone at the metatarsal phalangeal joint or other joint of the foot or ankle by removing a circular portion of the subchondral bone while preserving a central post of the subchondral bone in a substantially undisturbed native state;
- c) preparing a hybrid subchondral implant-biologic member construct by:
- 1) forming a slit through a biologic member;
- 2) positioning a driver instrument through the slit;
- 3) engaging the driver instrument with a subchondral implant;
- and
- 4) securing the biologic member to the subchondral implant so that the hybrid subchondral implant-biologic member construct is formed;
- and
- d) installing the hybrid subchondral implant-biologic member construct over a top of the central post in the metatarsal phalangeal joint or other joint of the foot or ankle.
A method of intervening in subchondral bone to fuse a metatarsal phalangeal joint or other joint of the foot or ankle using a subchondral implant, the method comprising:
- a) surgically opening access to a metatarsal phalangeal joint or other joint of the foot or ankle joint of the patient;
- b) preparing a site of subchondral bone at the metatarsal phalangeal joint or other joint of the foot or ankle by removing damaged tissue in and/or between the subchondral bone of multiple bones along the joint so as to form a bore between the multiple bones along the joint;
- c) preparing a subchondral implant;
- and
- d) installing the subchondral implant construct in the bore so that the subchondral implant is engaging the subchondral bone of the multiple bones along the metatarsal phalangeal joint or other joint of the foot or ankle, wherein the subchondral implant engaging the subchondral bone of the multiple bones resists relative motion therebetween and thus facilitates fusion of the joint.
Dependencies are inferred from the claim text.